Author: "Instituto IMDEA Energía" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Instituto IMDEA Energía"' showing total 32 results

Start Over Author "Instituto IMDEA Energía"

32 results on '"Instituto IMDEA Energía"'

1. How reproducible are surface areas calculated from the BET equation?

Author: Christian Serre, Peyman Z. Moghadam, Feng P, Rama Oktavian, Lin R, Ting, Telalovic S, Omar M. Yaghi, Mark D. Allendorf, Russell E. Morris, Muhammad Sadiq, Philip L. Llewellyn, Jonathan L. Snider, Stavila, Matthew J. Rosseinsky, Hou B, Pütz A, Daniel W. Siderius, Rowlandson J, Randall Q. Snurr, van der Veen M, Nguyen T, Kaneko K, Linares N, Félix Zamora, Zhou H, Camille Petit, Sebastian T. Emmerling, Aran Lamaire, Cui Y, David G. Madden, Salcedo-Abraira P, Krista S. Walton, Soumya Mukherjee, Karam B. Idrees, Doheny Pw, Timur Islamoglu, Azevedo Dcs, Conchi O. Ania, Bu X, Zang X, Martin Schröder, Vilarrasa-García E, Michael T. Huxley, Ken-ichi Otake, Sanchez E, Rega D, Vanspeybroeck, Georges Mouchaham, Carmen Montoro, Lee Sj, David Danaci, Goncalves Rb, Yamil J. Colón, Patricia Horcajada, David S. Sholl, David Fairen-Jimenez, Shane G. Telfer, Bethany M. Connolly, Christian J. Doonan, Ryan P. Lively, D’Alessandro D, Raffaele Ricco, Paul S. Wheatley, Clowes R, Bettina V. Lotsch, Alexandros P. Katsoulidis, François-Xavier Coudert, Dominic Bara, Garcia-Martinez J, Carlos Martí-Gastaldo, Yavuz C, Chen B, Matthew R. Hill, Ross S. Forgan, Shuhei Furukawa, Ghosha Sk, Johannes W.M. Osterrieth, Jack D. Evans, Jorge A. R. Navarro, Suarez Ja, Zhang B, João Marreiros, Jorge Gascon, Neil R. Champness, Kenvin J, Yang S, Iiyuka T, Nakul Rampal, Daniel Maspoch, falcaro p, Rampersad J, Han X, Jacopo Andreo, Benoit Coasne, Yang H, Angelo K, Stefan Wuttke, Santos Bf, Chenyue Sun, Susumu Kitagawa, Luka Skoric, Moreton Jc, Rob Ameloot, Muñoz N, DeWitt Sja, Uemura T, Sven Rogge, Seda Keskin, Lukas W. Bingel, Raghuram Thyagarajan, Mircea Dincă, Seth M. Cohen, Bunzen H, Kukobat R, Omar K. Farha, Sarah L. Griffin, Chen L, University of St Andrews. EaSTCHEM, University of St Andrews. School of Chemistry, University of St Andrews. Institute of Behavioural and Neural Sciences, Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), University of Cambridge [UK] (CAM), Sandia National Laboratories [Livermore], Sandia National Laboratories - Corporation, Catholic University of Leuven - Katholieke Universiteit Leuven (KU Leuven), Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), Université d'Orléans (UO)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Universidade Federal do Ceará = Federal University of Ceará (UFC), Nankai University (NKU), University of Augsburg (UNIA), University of Nottingham, UK (UON), The University of Texas at San Antonio (UTSA), Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), University of California [San Diego] (UC San Diego), University of California (UC), University of Notre Dame [Indiana] (UND), University of Liverpool, Institut de Recherche de Chimie Paris (IRCP), Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC), Shanghai Jiaotong University, The University of Sydney, Massachusetts Institute of Technology (MIT), University of Adelaide, Technische Universität Dresden = Dresden University of Technology (TU Dresden), Graz University of Technology [Graz] (TU Graz), Northwestern University [Evanston], University of California [Riverside] (UC Riverside), University of Glasgow, Kyoto University, King Abdullah University of Science and Technology (KAUST), Indian Institute of Science Education and Research Pune (IISER Pune), Monash university, Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, Shinshu University [Nagano], Koç University, Georgia Institute of Technology [Atlanta], TotalEnergies, Aix Marseille Université (AMU), Centre National de la Recherche Scientifique (CNRS), Max Planck Institute for Solid State Research, Max-Planck-Gesellschaft, Ludwig-Maximilians-Universität München (LMU), Universitat de València (UV), Universidad de Alicante, Barcelona Institute of Science and Technology (BIST), University of Sheffield [Sheffield], University of Saint Andrews, Universidad de Granada = University of Granada (UGR), Imperial College London, University of Manchester [Manchester], École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), National Institute of Standards and Technology [Gaithersburg] (NIST), Massey University, University of Bristol [Bristol], The University of Tokyo (UTokyo), Delft University of Technology (TU Delft), Universiteit Gent = Ghent University (UGENT), Ikerbasque - Basque Foundation for Science, University of California [Berkeley] (UC Berkeley), Korea Advanced Institute of Science and Technology (KAIST), Universidad Autónoma de Madrid (UAM), Texas A&M University [College Station], Universidad de Alicante. Departamento de Química Inorgánica, Laboratorio de Nanotecnología Molecular (NANOMOL), European Commission, European Research Council, University of Cambridge, Trinity College Cambridge, National Nuclear Security Administration (US), Department of Energy (US), Alexander von Humboldt Foundation, Center for Advancing Electronics Dresden, Science and Engineering Research Board (India), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Research Foundation - Flanders, Engineering and Physical Sciences Research Council (UK), National Research Foundation of Korea, Indonesia Endowment Fund for Education, National Institute of Standards and Technology (US), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université d'Orléans (UO), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Paris - Chimie ParisTech-PSL (ENSCP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ministère de la Culture (MC), Avcı, Seda Keskin (ORCID 0000-0001-5968-0336 & YÖK ID 40548), Osterrieth, J.W.M., Rampersad, J., Madden, D., Rampal, N., Skoric, L., Connolly, B., Allendorf, M.D., Stavila, V., Snider, J.L., Ameloot, R., Marreiros, J., Ania, C., Azevedo, D., Vilarrasa-Garcia, E., Santos, B.F., Bu, X.H., Chang, Z., Bunzen, H., Champness, N.R., Griffin, S.L., Chen, B., Lin, R.B., Coasne, B., Cohen, S., Moreton, J.C., Colón, Y.J., Chen, L., Clowes, R., Coudert, F.X., Cui, Y., Hou, B., D'Alessandro, D.M., Doheny, P.W., Dinc?, M., Sun, C., Doonan, C., Huxley, M.T., Evans, J.D., Falcaro, P., Ricco, R., Farha, O., Idrees, K.B., Islamoglu, T., Feng, P., Yang, H., Forgan, R.S., Bara, D., Furukawa, S., Sanchez, E., Gascon, J., Telalovi?, S., Ghosh, S.K., Mukherjee, S., Hill, M.R., Sadiq, M.M., Horcajada, P., Salcedo-Abraira, P., Kaneko, K., Kukobat, R., Kenvin, J., Kitagawa, S., Otake, K.I., Lively, R.P., DeWitt, S.J.A., Llewellyn, P., Lotsch, B.V., Emmerling, S.T., Pütz, A.M., Martí-Gastaldo, C., Padial, N.M., García-Martínez, J., Linares, N., Maspoch, D., Suárez Del Pino, J.A., Moghadam, P., Oktavian, R., Morris, R.E., Wheatley, P.S., Navarro, J., Petit, C., Danacı, D., Rosseinsky, M.J., Katsoulidis, A.P., Schröder, M., Han, X., Yan, S., Serre, C., Mouchaham, G., Sholl, D.S., Thyagarajan, R., Siderius, D., Snurr, R.Q., Goncalves, R.B., Telfer, S., Lee, S.J., Ting, V.P., Rowlandson, J.L., Uemura T, Iiyuka, T., van derVeen, Monique A., Rega, Davide, Van Speybroeck, Veronique, Rogge, Sven M. J., Lamaire, Aran, Walton, Krista S., Bingel, Lukas W., Wuttke, Stefan, Andreo, Jacopo, Yaghi, Omar, Zhang, Bing, Yavuz, Cafer T., Nguyen, Thien S., Zamora, Felix, Montoro, Carmen, Zhou, Hongcai, Kirchon, Angelo, Fairen-Jimenez, David, College of Engineering, Department of Chemical and Biological Engineering, UAM. Departamento de Química Inorgánica, Fairen-Jimenez, David [0000-0002-5013-1194], and Apollo - University of Cambridge Repository
Subjects: Surface (mathematics), Technology, Chemistry, Multidisciplinary, Surface area, 02 engineering and technology, 01 natural sciences, GAS-STORAGE, Surface Area Analysis, General Materials Science, Porous materials, QD, BET theory, Chemistry, Physical, Nanoporous, Physics, 1. No poverty, Química, [CHIM.MATE]Chemical Sciences/Material chemistry, 3rd-DAS, Reproducibilities, 021001 nanoscience & nanotechnology, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Chemistry, Physics, Condensed Matter, Mechanics of Materials, Physical Sciences, Science & Technology - Other Topics, 0210 nano-technology, Porosity, Materials Science, APPLICABILITY, Materials Science, Multidisciplinary, Nanotechnology, 010402 general chemistry, Physics, Applied, METAL-ORGANIC FRAMEWORKS, Adsorption, Porosimetry, [CHIM]Chemical Sciences, ddc:530, Nanoscience & Nanotechnology, MCC, Química Inorgánica, Science & Technology, Mechanical Engineering, Science and technology, Reproducibility of Results, QD Chemistry, 0104 chemical sciences, Physics and Astronomy, Brunauer Emmett Tellers
Abstract: This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (NanoMOFdeli), ERC-2016-COG 726380, Innovate UK (104384) and EPSRC IAA (IAA/RG85685). N.R. acknowledges the support of the Cambridge International Scholarship and the TrinityHenry Barlow Scholarship (Honorary). O.K.F. and R.Q.S. acknowledge funding from the U.S. Department of Energy (DE-FG02-08ER15967). R.S.F. and D.B. acknowledge funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (SCoTMOF), ERC-2015-StG 677289. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA-0003525. The authors gratefully acknowledge funding from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Hydrogen and Fuel Cell Technologies Office, through the Hydrogen Storage Materials Advanced Research Consortium (HyMARC). This paper describes objective technical results and analysis. Any subjective views or opinions that might be expressed in the paper do not necessarily represent the views of the U.S. Department of Energy or the United States Government. J.D.E. acknowledges the support of the Alexander von Humboldt Foundation and the Center for Information Services and High Performance Computing (ZIH) at TU Dresden. S.K.G. and S.M. acknowledge SERB (Project No. CRG/2019/000906), India for financial support. K.K. and R.K. acknowledge Active Co. Research Grant for funding. S.K. acknowledges funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (COSMOS), ERC-2017-StG 756489. N.L. and J.G.M acknowledge funding from the European Commission through the H2020-MSCA-RISE-2019 program (ZEOBIOCHEM -872102) and the Spanish MICINN and AEI/FEDER (RTI2018-099504-B-C21). N.L. thanks the University of Alicante for funding (UATALENTO17-05). ICN2 is supported by the Severo Ochoa program from the Spanish MINECO (Grant No. SEV-2017-0706) S.M.J.R. and A.L. wish to thank the Fund for Scientific Research Flanders (FWO), under grant nos. 12T3519N and 11D2220N. L.S. was supported by the EPSRC Cambridge NanoDTC EP/L015978/1. C.T.Y. and T.S.N. acknowledges funds from the National Research Foundation of Korea, NRF-2017M3A7B4042140 and NRF-2017M3A7B4042235. P.F. and H. Y. acknowledge US Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division under Award No. DE-SC0010596 (P.F.). R.O. would like to acknowledge funding support during his Ph.D. study from Indonesian Endowment Fund for Education-LPDP with the contract No. 202002220216006. Daniel Siderius: Official contribution of the National Institute of Standards and Technology (NIST), not subject to copyright in the United States of America. Daniel Siderius: Certain commercially available items may be identified in this paper. This identification does not imply recommendation by NIST, nor does it imply that it is the best available for the purposes described. B.V.L, S.T.E and A.M.P acknowledge funding from the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Program (Grant agreement no. 639233, COFLeaf)., Porosity and surface area analysis play a prominent role in modern materials science. At the heart of this sits the Brunauer–Emmett–Teller (BET) theory, which has been a remarkably successful contribution to the field of materials science. The BET method was developed in the 1930s for open surfaces but is now the most widely used metric for the estimation of surface areas of microand mesoporous materials. Despite its widespread use, the calculation of BET surface areas causes a spread in reported areas, resulting in reproducibility problems in both academia and industry. To prove this, for this analysis, 18 already-measured raw adsorption isotherms were provided to sixty-one labs, who were asked to calculate the corresponding BET areas. This roundrobin exercise resulted in a wide range of values. Here, the reproducibility of BET area determination from identical isotherms is demonstrated to be a largely ignored issue, raising critical concerns over the reliability of reported BET areas. To solve this major issue, a new computational approach to accurately and systematically determine the BET area of nanoporous materials is developed. The software, called “BET surface identification” (BETSI), expands on the well-known Rouquerol criteria and makes an unambiguous BET area assignment possible., European Research Council (ERC) ERC-2016-COG 726380 ERC-2015-StG 677289 ERC-2017-StG 756489 639233, UK Research & Innovation (UKRI) Innovate UK 104384 UK Research & Innovation (UKRI), Engineering & Physical Sciences Research Council (EPSRC) IAA/RG85685, Cambridge International Scholarship TrinityHenry Barlow Scholarship, United States Department of Energy (DOE) DE-FG02-08ER15967, National Nuclear Security Administration DE-NA-0003525, United States Department of Energy (DOE), Alexander von Humboldt Foundation, Center for Information Services and High Performance Computing (ZIH) at TU Dresden, Department of Science & Technology (India), Science Engineering Research Board (SERB), India CRG/2019/000906, Active Co. Research Grant, European Commission through the H2020-MSCA-RISE-2019 program ZEOBIOCHEM -872102, Spanish MICINN and AEI/FEDER RTI2018-099504-B-C21, University of Alicante UATALENTO17-05, Spanish Government SEV-2017-0706 FWO 12T3519N 11D2220N, UK Research & Innovation (UKRI), Engineering & Physical Sciences Research Council (EPSRC) EP/L015978/1, National Research Foundation of Korea NRF-2017M3A7B4042140 NRF-2017M3A7B4042235, United States Department of Energy (DOE) DE-SC0010596, Indonesian Endowment Fund for Education-LPDP 202002220216006
Published: 2022
Full Text: View/download PDF

2. Towards improving the capacity of UiO-66 for antibiotic elimination from contaminated water

Author: Patricia Horcajada, Víctor Dato, Fabrice Salles, Jessica García-González, Sara Rojas, David Ávila, Ana Torres, Instituto IMDEA Energía, Instituto IMDEA Energy [Madrid], Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)
Subjects: Swine, medicine.drug_class, Groundwater remediation, Antibiotics, Phthalic Acids, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Antibiotic resistance, Adsorption, medicine, Animals, Physical and Theoretical Chemistry, Photodegradation, Metal-Organic Frameworks, Chemistry, Sulfamethazine, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 6. Clean water, Anti-Bacterial Agents, 0104 chemical sciences, Environmental chemistry, Photocatalysis, Degradation (geology), Cattle, Water quality, 0210 nano-technology
Abstract: Antibiotics are found in natural waters, raising concern about their human and environmental toxicity and the wide occurrence of antibiotic resistant bacteria. The antibiotic resistance crisis is attributed to the overuse and misuse of these medications. Particularly, sulfamethazine (SMT), an antibiotic commonly used in pigs and cattle for the treatment of bacterial diseases, has been detected in the natural environment (soil and water). Among all the technologies developed to combat the deteriorating water quality and control antimicrobial resistance, heterogeneous photocatalysis should be highlighted for the degradation of refractory organic compounds. Here, we described the SMT adsorption and photodegradation capacity of a highly porous and robust zirconium-based MOF UiO-66 under realistic conditions, and its potential recyclability. Further, its SMT removal capacity was improved by functionalizing the MOF porosity (28.5% of SMT adsorption in 24 h for nanoUiO-66-NH2), and nanosizing the MOF (100% SMT photodegradation in only 4 h for nanoUiO-66). Finally, the safety of the formed by-product during SMT photodegradation was confirmed, reinforcing the potential of the application of UiO-66 in water remediation.
Published: 2021
Full Text: View/download PDF

3. Covalent and Selective Grafting of Polyethylene Glycol Brushes at the Surface of ZIF-8 for the Processing of Membranes for Pervaporation

Author: Thomas Berthelot, Elena Bellido, Florent Carn, Patricia Horcajada, Rocio Semino, Nicolas Menguy, Maria E. Dmitrenko, Guillaume Maurin, Denis Roizard, Sérgio R. Tavares, Marvin Benzaqui, Christian Serre, Nathalie Steunou, Anastasia V. Penkova, Mónica Giménez-Marqués, Anna I. Kuzminova, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes (MSC), Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de minéralogie, de physique des matériaux et de cosmochimie (IMPMC), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energía, Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN UMR 3685), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Service de Physique et de Chimie des Surfaces et Interfaces (SPCSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Saint Petersburg University (SPBU), Laboratoire Réactions et Génie des Procédés (LRGP), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), ANR-10-LABX-0035,Nano-Saclay,Paris-Saclay multidisciplinary Nano-Lab(2010), European Project: 608490,EC:FP7:ENERGY,FP7-ENERGY-2013-1,M4CO2(2014), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Matière et Systèmes Complexes (MSC (UMR_7057)), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut de recherche pour le développement [IRD] : UR206-Muséum national d'Histoire naturelle (MNHN)-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP UMR8004 FRE2000), École normale supérieure - Paris (ENS Paris)-École normale supérieure - Paris (ENS Paris)-ESPCI ParisTech-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche pour le développement [IRD] : UR206-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC), Instituto IMDEA Energy, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and ANR: NanoSaclay,ANR-10-LABX-0035
Subjects: Vinyl alcohol, Materials science, Poly(vinyl alcohol), General Chemical Engineering, Nanoparticle, 02 engineering and technology, Polyethylene glycol, 010402 general chemistry, 01 natural sciences, chemistry.chemical_compound, Pervaporation, Surface modification, Dynamic light scattering, Environmental Chemistry, Membranes, Renewable Energy, Sustainability and the Environment, technology, industry, and agriculture, [CHIM.MATE]Chemical Sciences/Material chemistry, General Chemistry, 021001 nanoscience & nanotechnology, MOFs, 0104 chemical sciences, Membrane, chemistry, Chemical engineering, Membranes, MOFs, Pervaporation, Poly(vinyl alcohol), Surface modification, 0210 nano-technology, Zeolitic imidazolate framework
Abstract: International audience; The so-called Graftfast reaction in water and at room temperature (RT) was applied to graft polyethylene glycol (PEG) at the surface of the microporous zeolitic imidazolate framework ZIF-8 nanoparticles (NPs) using acrylPEG of different chain lengths (480 Da and 5 kDa). In comparison to non-modified ZIF-8 NPs, both chemical and colloidal stabilities of PEGylated ZIF-8 NPs are significantly enhanced in water. A series of colloidal complex fluids by mixing PEG grafted ZIF-8 (i. e. PEG-g-ZIF-8) NPs with different amounts of polyvinylalcohol (PVA) was prepared and characterized by advanced characterization tools such as dynamic light scattering (DLS) and small-angle X-ray scattering (SAXS) thereby showing their long-term colloidal stability. Finally, dense and supported mixed matrix membranes were cast from PEG-g-ZIF-8/PVA solutions and have shown high performance in isopropanol (IPA) dehydration by pervaporation. The permeation flux of the supported MMM (i. e. 0.091 kg/(m$^2$h) is eleven times higher than that of the pure PVA membrane and these MMMs present a high separation factor (i. e. 7326). These transport properties are presumably due to the molecular sieving effects induced by ZIF-8 and the good interfacial properties of the membrane. The computational exploration of the ZIF-8/PVA and PEG/PVA interfaces provides a microscopic scale explanation for the enhanced compatibility of PVA with the PEGylated MOF when compared to that for the composite based on the bare ZIF-8 as a filler.
Published: 2019
Full Text: View/download PDF

4. Nickel phosphonate MOF as efficient water splitting photocatalyst

Author: Fabrice Salles, Sergio Navalón, Hermenegildo García, Pedro Gregorio, Sérgio M. F. Vilela, Pablo Salcedo-Abraira, Patricia Horcajada, María Cabrero-Antonino, Artem A. Babaryk, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Generalitat Valenciana, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), and Instituto IMDEA Energía
Subjects: Materials science, Metal-organic framework, chemistry.chemical_element, 02 engineering and technology, Crystal structure, 010402 general chemistry, water splitting, 01 natural sciences, chemistry.chemical_compound, QUIMICA ORGANICA, General Materials Science, Electrical and Electronic Engineering, Photocatalysis, Water splitting, phosphonates, [CHIM.MATE]Chemical Sciences/Material chemistry, Microporous material, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Phosphonate, Atomic and Molecular Physics, and Optics, 0104 chemical sciences, Nickel, chemistry, Chemical engineering, Chemical stability, Phosphonates, 0210 nano-technology, photocatalysis
Abstract: A novel microporous two-dimensional (2D) Ni-based phosphonate metal-organic framework (MOF; denoted as IEF-13) has been successfully synthesized by a simple and green hydrothermal method and fully characterized using a combination of experimental and computational techniques. Structure resolution by single-crystal X-ray diffraction reveals that IEF-13 crystallizes in the triclinic space group P having bi-octahedra nickel nodes and a photo/electroactive tritopic phosphonate ligand. Remarkably, this material exhibits coordinatively unsaturated nickel(II) sites, free–POH and–POH acidic groups, a CO accessible microporosity, and an exceptional thermal and chemical stability. Further, its in-deep optoelectronic characterization evidences a photoresponse suitable for photocatalysis. In this sense, the photocatalytic activity for challenging H generation and overall water splitting in absence of any co-catalyst using UV–Vis irradiation and simulated sunlight has been evaluated, constituting the first report for a phosphonate-MOF photocatalyst. IEF-13 is able to produce up to 2,200 µmol of H per gram using methanol as sacrificial agent, exhibiting stability, maintaining its crystal structure and allowing its recycling. Even more, 170 µmol of H per gram were produced using IEF-13 as photocatalyst in the absence of any co-catalyst for the overall water splitting, being this reaction limited by the O reduction. The present work opens new avenues for further optimization of the photocatalytic activity in this type of multifunctional materials. [Figure not available: see fulltext.]., This work was supported by MOFseidon project (Retos project, PID2019-104228RB-I00, MICIU-AEI/FEDER, UE), and the Ramón Areces Foundation project H+MOFs. P. H. acknowledges the Spanish Ramón y Cajal Programme (2014-15039). S. N. thanks financial support by the Fundación Ramón Areces (XVIII Concurso Nacional para la Adjudicación de Ayudas a la Investigatión en Ciencias de la Vida y de la Materia, 2016), Ministerio de Ciencia, Innovatión y Universidades RTI2018–099482-A-I00 project and Generalitat Valenciana grupos de investigación consolidables 2019 (AICO/2019/214) project and Agència Valenciana de la Innovació (AVI, INNEST/2020/111) project. H. G. thanks financial support to the Spanish Ministry of Science and Innovation (Severo Ochoa and RTI2018-098237-CO21) and Generalitat Valenciana (Prometeo2017/083). In memory of our dear colleague, Prof. Emilio Morán, who recently passed away.
Published: 2021
Full Text: View/download PDF

5. A new proton-conducting Bi-carboxylate framework

Author: Patricia Horcajada, Fabrice Salles, Alejandro Várez, Thomas Devic, Sérgio M. F. Vilela, Institute IMDEA Materials, Institut des Matériaux Jean Rouxel (IMN), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Université de Nantes (UN), Universidad Carlos III de Madrid [Madrid] (UC3M), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Instituto IMDEA Energy [Madrid], and Instituto IMDEA Energía
Subjects: Materials science, Proton, 010405 organic chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, Conductivity, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, chemistry, Carboxylate, ComputingMilieux_MISCELLANEOUS
Abstract: A new robust Bi-carboxylate metal–organic framework (MOF) IEF-2 was hydrothermally prepared, acting as a proton carrier (σ ∼ 1.1 × 10−4 S cm−1). Such proton conductivity is among the highest reported so far for purely 3D carboxylate-based MOFs, being explained by the existence of a 1D hydrogen-bond network, as suggested by structural analysis and theoretical studies.
Published: 2019
Full Text: View/download PDF

6. Irradiance-Controlled Photoassisted Synthesis of Sub-Nanometre Sized Ruthenium Nanoparticles as Co-Catalyst for TiO2 in Photocatalytic Reactions

Author: Patricia García-Muñoz, Nicolas Keller, Javier Ivanez, Fernando Fresno, Institut de chimie et procédés pour l'énergie, l'environnement et la santé (ICPEES), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Universidad Politécnica de Madrid (UPM), Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), and Keller, Nicolas
Subjects: Technology, Materials science, Formic acid, Reducing agent, chemistry.chemical_element, Nanoparticle, 02 engineering and technology, 010402 general chemistry, 7. Clean energy, 01 natural sciences, Catalysis, chemistry.chemical_compound, X-ray photoelectron spectroscopy, TiO2, General Materials Science, photoassisted synthesis, ruthenium, Microscopy, QC120-168.85, [CHIM.MATE] Chemical Sciences/Material chemistry, QH201-278.5, [CHIM.CATA] Chemical Sciences/Catalysis, [CHIM.MATE]Chemical Sciences/Material chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, Engineering (General). Civil engineering (General), 021001 nanoscience & nanotechnology, TK1-9971, 0104 chemical sciences, Ruthenium, Descriptive and experimental mechanics, chemistry, Chemical engineering, Photocatalysis, nanoparticles, Nanometre, Electrical engineering. Electronics. Nuclear engineering, TA1-2040, 0210 nano-technology, photocatalysis
Abstract: Photoassisted synthesis is as a highly appealing green procedure for controlled decoration of semiconductor catalysts with co-catalyst nanoparticles, which can be carried out without the concourse of elevated temperatures, external chemical reducing agents or applied bias potential and in a simple slurry reactor. The aim of this study is to evaluate the control that such a photoassisted method can exert on the properties of ruthenium nanoparticles supported on TiO2 by means of the variation of the incident irradiance and hence of the photodeposition rate. For that purpose, different Ru/TiO2 systems with the same metal load have been prepared under varying irradiance and characterized by means of elemental analysis, transmission electron microscopy and X-ray photoelectron spectroscopy. The photocatalytic activity of the so-obtained materials has been evaluated by using the degradation of formic acid in water under UV-A light. Particles with size around or below one nanometer were obtained, depending on the irradiance employed in the synthesis, with narrow size distribution and homogeneous dispersion over the titania support. The relation between neutral and positive oxidation states of ruthenium could also be controlled by the variation of the irradiance. The obtained photocatalytic activities for formic acid oxidation were in all cases higher than that of undecorated titania, with the sample obtained with the lowest irradiation giving rise to the highest oxidation rate. According to the catalysts characterization, photocatalytic activity is influenced by both Ru size and Ru0/Ruδ+ ratio.
Published: 2021
Full Text: View/download PDF

7. Highly robust La1-xTixFeO3 dual catalyst with combined photocatalytic and photo-CWPO activity under visible light for 4-chlorophenol removal in water

Author: Nicolas Keller, Patricia García-Muñoz, Christophe Lefevre, Fernando Fresno, Didier Robert, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA), Laboratoire des Matériaux, Surfaces et Procédés pour la Catalyse (LMSPC), Institut de chimie et procédés pour l'énergie, l'environnement et la santé (ICPEES), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Matériaux et nanosciences d'Alsace (FMNGE), Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energía, Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), and Keller, Nicolas
Subjects: Materials science, dual Ti-substituted LaFeO3 catalyst, chemistry.chemical_element, 02 engineering and technology, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, 010402 general chemistry, Heterogeneous catalysis, 7. Clean energy, 01 natural sciences, Catalysis, law.invention, Reaction rate, law, Calcination, visible light, ComputingMilieux_MISCELLANEOUS, General Environmental Science, [SDE.IE]Environmental Sciences/Environmental Engineering, Process Chemistry and Technology, [CHIM.CATA] Chemical Sciences/Catalysis, water treatment, [CHIM.CATA]Chemical Sciences/Catalysis, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Amorphous solid, chemistry, Chemical engineering, [CHIM.OTHE] Chemical Sciences/Other, photoassisted CWPO, Photocatalysis, [SDE.IE] Environmental Sciences/Environmental Engineering, 0210 nano-technology, [CHIM.OTHE]Chemical Sciences/Other, photocatalysis, Visible spectrum, Titanium
Abstract: International audience; A highly robust Ti-substituted LaFeO3 dual catalyst was synthesized via a facile Pechini sol-gel route using a dried amorphous sol-gel titania as titanium source and a final calcination at 800 °C that enabled solid-solid diffusion of titanium atoms within the perovskite network. Using an amorphous precursor instead of crystallized titania nanocrystals increased the Ti → La atomic substitution degree in the crystalline network from 5 at% to 11 at%, together with a strong increase in the catalytic activity. The partially substituted La1-xTixFeO3 catalyst with a 11 at% substitution degree allowed pure heterogeneous surface reactions to take place under pure visible light (λ > 420 nm), with an increase in the catalyst robustness by more than two orders of magnitude compared to the unmodified LaFeO3 counterpart, evidenced by the absence of any Fe release, the structural stability of the substituted catalyst and the absence of any loss of catalytic activity with test cycles. Further, the strategy of combining both photocatalysis and H2O2-mediated heterogeneous photo-Fenton advanced oxidation processes within one single heterogeneous catalyst allowed the dual La1-xTixFeO3 catalyst to simultaneously take advantage from the higher reaction rate of photo-Fenton and from the higher mineralization yield of photocatalysis in water treatment. As a result, the dual 11 at% Ti-substituted La1-xTixFeO3 catalyst clearly outperformed its unmodified LaFeO3 counterpart and led to a complete mineralization of the 4-chlorophenol substrate under pure visible light, with strongly enhanced H2O2 decomposition, 4-chlorophenol and TOC conversion rates. Finally, the activity of the La1-xTixFeO3 catalyst under visible light contributed significantly to its overall activity obtained using the full solar spectra.
Published: 2019
Full Text: View/download PDF

8. A highly conductive nanostructured PEDOT polymer confined into the mesoporous MIL-100(Fe)

Author: Nathalie Guillou, Pedro Atienzar, Fabrice Salles, Sergio Navalón, Patricia Horcajada, Pablo Salcedo-Abraira, Erik Elkaim, Pierre Bordet, Hermenegildo Garcia, Andrea Santiago-Portillo, Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, CSIC-Universidad de Valencia, Matériaux, Rayonnements, Structure (MRS), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), and Universitat Politècnica de València (UPV)
Subjects: chemistry.chemical_classification, Nanostructure, Materials science, 010405 organic chemistry, Composite number, Polymer, [CHIM.MATE]Chemical Sciences/Material chemistry, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, QUIMICA ORGANICA, chemistry, Chemical engineering, PEDOT:PSS, Electrochromism, Electrical resistivity and conductivity, In situ polymerization, Mesoporous material, ComputingMilieux_MISCELLANEOUS
Abstract: [EN] Despite the higher efficiency, larger color range and faster stimulus response of polymeric electrochromic materials, their poor cyclability strongly hampers their application in optoelectronics. As an original strategy to stabilize and further nanostructure these polymers, herein an efficient encapsulation and in situ polymerization inside highly porous metal-organic frameworks (MOFs) is reported. In particular, the successful accommodation of poly(3,4-ethylendioxythiophene) (PEDOT) and its partially oxidized polarons inside the mesopores of the nontoxic iron trimesate MIL-100(Fe) is convincingly proved by a large panel of experimental techniques. Remarkably, the polymer-MOF interaction occurring for entrapped PEDOT within the pores (deeply assessed by experimental and simulation methods) might be responsible for the enhanced electrical conductivity of the resulting PEDOT@MIL-100(Fe) composite when compared to the insulating MIL-100(Fe) and the conductive free PEDOT. Furthermore, it was possible to observe the electrochromic properties of the PEDOT@MIL-100(Fe) composite, achieving an improved stability and good cyclability as a consequence of the effective protection by the MOF matrix., This work was supported by a 2017 Leonardo Grant for Researchers and Cultural Creators, BBVA Foundation (IN[17]_CBB_QUI_0197). The work was also partially supported by IMDEA Energy and Raphuel project (ENE2016-79608-C2-1-R, MINECOAEI/FEDER, UE). PH acknowledges the Spanish Ramon y Cajal Programme (grant agreement no. 2014-16823). S. N. thanks the Spanish Ministerio de Educacion, Cultura y Deporte for Jose Castillejo mobility programme (CAS14/00067) and financial support by Fundacion Ramon Areces (XVIII Concurso Nacional para la Adjudicacion de Ayudas a la Investigacion en Ciencias de la Vida y de la Materia, 2016). We also thank the synchrotron Soleil for providing access to the Cristal beamline.
Published: 2019
Full Text: View/download PDF

9. Comparison of Chlorella vulgaris and cyanobacterial biomass: cultivation in urban wastewater and methane production

Author: Lara Mendez, Elia Tomás-Pejó, Jean-Philippe Steyer, Cristina González-Fernández, Bruno Sialve, Mercedes Ballesteros, Instituto IMDEA Energía, Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), Spanish Ministry of Economy and Competitiveness (WW-ALGAS) ENE2013-45416-R RYC-2014-16823, and People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7) under REA Grant n° 291803
Subjects: Cyanobacteria, [SDV]Life Sciences [q-bio], 020209 energy, Microorganism, Chlorella vulgaris, Biomass, Bioengineering, 02 engineering and technology, 010501 environmental sciences, Biology, cyanobacteria, 7. Clean energy, 01 natural sciences, nutrients removal, chemistry.chemical_compound, Biogas, 11. Sustainability, Botany, biogas, 0202 electrical engineering, electronic engineering, information engineering, chlorella vulgaris, Ammonium, Anaerobiosis, Food science, wastewater, 0105 earth and related environmental sciences, General Medicine, biology.organism_classification, 6. Clean water, Anaerobic digestion, chemistry, Wastewater, [SDE]Environmental Sciences, Methane, Biotechnology
Abstract: International audience; Anaerobic digestion of microalgae is hampered by its complex cell wall. Against this background, cyanobacteria cell walls render this biomass as an ideal substrate for overcoming this drawback. The aim of the present study was to compare the growth of two cyanobacteria (Aphanizomenon ovalisporum and Anabaena planctonica) and a microalga (Chlorella vulgaris) in urban wastewater when varying the temperature (22, 27 and 32 degrees C). Cyanobacterial optimal growth for both strains was attained at 22 A degrees C, while C. vulgaris did not show remarkable differences among temperatures. For all the microorganisms, ammonium removal was higher than phosphate. Biomass collected was subjected to anaerobic digestion. Methane yield of C. vulgaris was 184.8 mL CH4 g COD in(-1) while with A. ovalisporum and A. planctonica the methane production was 1.2- and 1.4-fold higher. This study showed that cyanobacteria growth rates could be comparable to microalgae while presenting the additional benefit of an increased anaerobic digestibility.
Published: 2016
Full Text: View/download PDF

10. Exploring the catalytic performance of a series of bimetallic MIL-100(Fe, Ni) MOFs

Author: Hermenegildo García Gómez, Christian Serre, Sergio Navalón Oltra, Mónica Giménez-Marqués, Farid Nouar, Andrea Santiago-Portillo, Maria Mercedes Alvaro Rodríguez, Valérie Briois, Instituto de Ciencia Molecular (ICMol), Universitat de València (UV), Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, CSIC-Universidad de Valencia, Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), and Universitat Politècnica de València (UPV)
Subjects: Renewable Energy, Sustainability and the Environment, fungi, Acid-catalyzed reactions, Extended X ray absorption fine structure spectroscopy, 02 engineering and technology, General Chemistry, [CHIM.CATA]Chemical Sciences/Catalysis, 021001 nanoscience & nanotechnology, 7. Clean energy, Heterogeneous catalyst, Metalorganic frameworks (MOFs), QUIMICA ORGANICA, Political science, Catalyst activity, General Materials Science, Christian ministry, European commission, 0210 nano-technology, Humanities, ComputingMilieux_MISCELLANEOUS
Abstract: [EN] A series of mixed-metal Fe-III/Ni-II metal-organic frameworks (MOFs) of the MIL-100 type containing different metal ratios have been synthesized de novo, following an approach that requires tuning of the Fe-III/Ni-II reactivity. The resulting heterometallic MIL-100(Fe, Ni) materials maintain thermal, chemical and structural stability with respect to the parent MIL-100(Fe) MOF as can be deduced from various techniques. The nature and the oxidation state of the accessible metal cations have been evaluated by in situ infrared spectroscopy and extended X-ray absorption fine structure measurements. The obtained mixed-metal MOFs and the parent material have been evaluated as heterogeneous catalysts in a model acid-catalyzed reaction, i.e., the Prins reaction. It is found that the catalytic activity improves by more than one order of magnitude upon incorporation of Ni-II, with a complete selectivity for the formation of nopol. This increase in the catalytic activity upon incorporation of Ni-II correlates with the enhancement in the Lewis acidity of the material as determined by CO adsorption. The heterometallic MOF can be recycled without observation of metal leaching, while maintaining the crystal structure under the reaction conditions., This work was supported by the European Commission under the Marie Sklodowska-Curie agreement H2020-MSCA-IF-658224. Measurements at the ROCK synchrotron beamline of SOLEIL were supported by a public grant overseen by the French National Research Agency (ANR) as part of the "Investissements d'Avenir" program (reference: ANR10-EQPX45). H. G. thanks financial support by the Spanish Ministry of Science and Innovation (Severo Ochoa and RTI2018-098237-CO21) and Generalitat Valenciana (Prometeo 2017/083). S. N. thanks financial support by the Fundacion Ramon Areces (XVIII Concurso Nacional para la Adjudicacion de Ayudas a la Investigacion en Ciencias de la Vida y de la Materia, 2016) and Ministerio de Ciencia, Innovacion y Universidades CTQ-2018 RTI2018-099482-A-I00 project.
Published: 2019
Full Text: View/download PDF

11. On Physical Modeling of Lithium-Ion Cells and Adaptive Estimation of their State-of-Charge

Author: Bowen Yi, Romeo Ortega, Denis Efimov, Enrique García-Quismondo, Daniele Zonetti, Stanislav Aranovskiy, Centre National de la Recherche Scientifique (CNRS), Shanghai Jiao Tong University [Shanghai], Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), CentraleSupélec, Non-Asymptotic estimation for online systems (NON-A), Inria Lille - Nord Europe, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 (CRIStAL), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energía, Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), and Nantes Université (NU)-Université de Rennes 1 (UR1)
Subjects: 0209 industrial biotechnology, Materials science, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, Electrochemistry, Stability (probability), [SPI.AUTO]Engineering Sciences [physics]/Automatic, Ion, [SPI]Engineering Sciences [physics], 020901 industrial engineering & automation, State of charge, chemistry, Control theory, Lithium, 0210 nano-technology
Abstract: International audience; We address the problems of physical modeling and model-based adaptive observation of state-of-charge in lithium-ion batteries. The model is derived proceeding from electrochemical first principles. Two adaptive observers with guaranteed stability properties, under practically reasonable assumptions, are proposed. Simulations on a lithium iron-phosphate (LiFePo) cell to illustrate the advantages and limitations of the proposed observers are presented.
Published: 2018
Full Text: View/download PDF

12. Robust Monolithic Metal-Organic Framework with Hierarchical Porosity

Author: Patricia Horcajada, Sérgio M. F. Vilela, Pascal G. Yot, E.L. Solla, Pablo Salcedo-Abraira, Loïc Micheron, Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Universidade de Vigo, Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM ICMMM), and Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Université Montpellier 1 (UM1)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)
Subjects: Materials science, Metals and Alloys, Sorption, 02 engineering and technology, General Chemistry, Porosimetry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Catalysis, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Intrusion, Chemical engineering, Robustness (computer science), Materials Chemistry, Ceramics and Composites, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Metal-organic framework, 0210 nano-technology, Porosity, Hierarchical porous
Abstract: International audience; Hierarchical porous UiO-66-NH2 cm-monolithic xero- and aero-gels with a controlled shape and mechanical robustness were successfully produced from ethanolic gels. Their remarkable controlled hierarchical porosity was effectively assessed using N2 sorption, Hg intrusion porosimetry and focused ion beam-scanning electron microscopy methods.
Published: 2018
Full Text: View/download PDF

13. GraftFast Surface Engineering to Improve MOF Nanoparticles Furtiveness

Author: Patricia Horcajada, Ruxandra Gref, Thomas Berthelot, África González-Fernández, Christian Serre, Patrick Couvreur, Maria C. Asensio, Teresa Simón-Yarza, Elena Bellido, José Avila, Rosana Simón-Vázquez, Tania Hidalgo, Mónica Giménez-Marqués, Instituto de Ciencia Molecular (ICMol), Universitat de València (UV), Institut des Matériaux Poreux de Paris (IMAP ), Département de Chimie - ENS Paris, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN UMR 3685), Nanosciences et Innovation pour les Matériaux, la Biomédecine et l'Energie (ex SIS2M) (NIMBE UMR 3685), Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Recherche Vasculaire Translationnelle (LVTS (UMR_S_1148 / U1148)), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Instituto de Investigación Biomédica de Vigo (IBIV), Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Faculté de Pharmacie [Châtenay-Malabry], Université Paris-Sud - Paris 11 - Faculté de médecine (UP11 UFR Médecine), Université Paris-Sud - Paris 11 (UP11)-Université Paris-Sud - Paris 11 (UP11)-Université Paris-Saclay, Institut des Sciences Moléculaires d'Orsay (ISMO), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Institut Galien Paris-Sud (IGPS), Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energía, ANR-10-RMNP-0004,VIRMIL,Nanoparticules de MOFs pour le traitement des infections par le VIH et infections bactériennes associées(2010), ANR-11-IDEX-0003,IPS,Idex Paris-Saclay(2011), European Project: 658224,H2020,H2020-MSCA-IF-2014,hetero-MOF(2015), European Project: 291803,EC:FP7:PEOPLE,FP7-PEOPLE-2011-COFUND,AMAROUT-II(2012), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Innovation en Chimie des Surfaces et NanoSciences (LICSEN), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Institut Rayonnement Matière de Saclay (IRAMIS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Université Paris Diderot - Paris 7 (UPD7)-Université Paris 13 (UP13)-Institut National de la Santé et de la Recherche Médicale (INSERM), Catalan Institute of Nanoscience and Nanotechnology (ICN2), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Barcelona Institute of Science and Technology (BIST), Service de Physique et de Chimie des Surfaces et Interfaces (SPCSI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), University of Vigo [ Pontevedra], Université Paris-Saclay-Université Paris-Sud - Paris 11 - Faculté de médecine (UP11 UFR Médecine), and Université Paris-Sud - Paris 11 (UP11)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Nanoparticle, 02 engineering and technology, Polyethylene glycol, [CHIM.THER]Chemical Sciences/Medicinal Chemistry, Surface engineering, 010402 general chemistry, 01 natural sciences, Biomaterials, chemistry.chemical_compound, Adsorption, PEG ratio, [CHIM]Chemical Sciences, General Materials Science, ComputingMilieux_MISCELLANEOUS, Chemistry, [CHIM.ORGA]Chemical Sciences/Organic chemistry, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Grafting, 0104 chemical sciences, Chemical engineering, Surface modification, 0210 nano-technology, Selectivity, Biotechnology
Abstract: International audience; Controlling the outer surface of nanometric metal–organic frameworks (nanoMOFs) and further understanding the in vivo effect of the coated material are crucial for the convenient biomedical applications of MOFs. However, in most studies, the surface modification protocol is often associated with significant toxicity and/or lack of selectivity. As an alternative, how the highly selective and general grafting GraftFast method leads, through a green and simple process, to the successful attachment of multifunctional biopolymers (polyethylene glycol (PEG) and hyaluronic acid) on the external surface of nanoMOFs is reported. In particular, effectively PEGylated iron trimesate MIL-100(Fe) nanoparticles (NPs) exhibit suitable grafting stability and superior chemical and colloidal stability in different biofluids, while conserving full porosity and allowing the adsorption of bioactive molecules (cosmetic and antitumor agents). Furthermore, the nature of the MOF–PEG interaction is deeply investigated using high-resolution soft X-ray spectroscopy. Finally, a cell penetration study using the radio-labeled antitumor agent gemcitabine monophosphate (3H-GMP)-loaded MIL-100(Fe)@PEG NPs shows reduced macrophage phagocytosis, confirming a significant in vitro PEG furtiveness.
Published: 2018
Full Text: View/download PDF

14. Anaerobic digestion of microalgal biomass: Challenges, opportunities and research needs

Author: Cristina González-Fernández, Beatriz Molinuevo-Salces, Bruno Sialve, Instituto IMDEA Energía, Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Spanish Ministry of Economy and Competitiveness ENE2013-45416-R RYC-2014-16823, and People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme under REA grant 291803
Subjects: anaerobic digestion, Engineering, Environmental Engineering, Resource (biology), carboxylate, [SDV]Life Sciences [q-bio], Biomass, Bioengineering, cyanobacteria, 7. Clean energy, 12. Responsible consumption, Biogas, Bioenergy, Anaerobiosis, Waste Management and Disposal, Waste management, Renewable Energy, Sustainability and the Environment, business.industry, Hydrolysis, methane, microalgae, General Medicine, Biorefinery, Renewable energy, Anaerobic digestion, 13. Climate action, Biofuel, Biofuels, [SDE]Environmental Sciences, business
Abstract: International audience; Integration of anaerobic digestion (AD) with microalgae processes has become a key topic to support economic and environmental development of this resource. Compared with other substrates, microalgae can be produced close to the plant without the need for arable lands and be fully integrated within a biorefinery. As a limiting step, anaerobic hydrolysis appears to be one of the most challenging steps to reach a positive economic balance and to completely exploit the potential of microalgae for biogas and fertilizers production. This review covers recent investigations dealing with microalgae AD and highlights research opportunities and needs to support the development of this resource. Novel approaches to increase hydrolysis rate, the importance of the reactor design and the noteworthiness of the microbial anaerobic community are addressed. Finally, the integration of AD with microalgae processes and the potential of the carboxylate platform for chemicals and biofuels production are reviewed.
Published: 2015
Full Text: View/download PDF

15. Biocompatible polymer–metal–organic framework composite patches for cutaneous administration of cosmetic molecules

Author: Cédric Boissière, Patricia Horcajada, Clément Sanchez, Alfonso García Márquez, Christian Serre, Carmen Alvarez-Lorenzo, Hugo Lana, Denise Cunha, María J. Blanco-Prieto, Tania Hidalgo, Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidad de Navarra [Pamplona] (UNAV), Chaire Chimie des matériaux hybrides, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Instituto IMDEA Energy [Madrid], and Instituto IMDEA Energía
Subjects: medicine.medical_specialty, Materials science, Bioadhesive, Composite number, Biomedical Engineering, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, medicine, [CHIM]Chemical Sciences, General Materials Science, Active ingredient, General Chemistry, General Medicine, Permeation, 021001 nanoscience & nanotechnology, Ibuprofen, 0104 chemical sciences, Surgery, Nanocarriers, Swelling, medicine.symptom, 0210 nano-technology, Ex vivo, medicine.drug, Biomedical engineering
Abstract: International audience; Despite increasing interest in metal–organic frameworks (MOFs) in the biomedical field, developing specific formulations suitable for different administration routes is still a main challenge. Here, we propose a simple, fast and bio-friendly press-molding method for the preparation of cutaneous patches based on composites made from the drug nanocarrier MIL-100(Fe) and biopolymers. The physicochemical properties of the patches (structure, hydration, bioadhesive and swelling properties), as well as their encapsulation and release capabilities (both in ex vitro and ex vivo models), were evaluated using active ingredients such as the challenging cosmetic liporeductor, caffeine, and the model analgesic and anti-inflammatory drug, ibuprofen. In particular, very high caffeine loadings were entrapped within these cutaneous devices with progressive releases under simulated cutaneous physiological conditions as a consequence of the swelling of the hydrophilic patches. Despite the absence of any cutaneous bioadhesive character, these patches provided progressive and suitable permeation of their cosmetic cargo through the skin, interestingly reaching the targeted adipose tissue. This makes these cosmetic-containing composite MOF-based patches promising candidates for new cutaneous devices in cosmetic applications.
Published: 2016
Full Text: View/download PDF

16. Ethanol and E85 reforming assisted by a non-thermal arc discharge

Author: José Gonzalez-Aguilar, Guillaume Petitpas, Laurent Fulcheri, Adeline Darmon, Centre Énergétique et Procédés (CEP), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, Technocentre Renault [Guyancourt], RENAULT, CEP/Sophia, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris
Subjects: 020209 energy, General Chemical Engineering, Energy Engineering and Power Technology, chemistry.chemical_element, 02 engineering and technology, 7. Clean energy, Oxygen, Electric arc, chemistry.chemical_compound, [SPI.ENERG]Engineering Sciences [physics]/domain_spi.energ, Reforming, 0202 electrical engineering, electronic engineering, information engineering, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Hydrogen production, Ethanol, [SPI.PLASMA]Engineering Sciences [physics]/Plasmas, 021001 nanoscience & nanotechnology, Fuel Technology, Chemical engineering, chemistry, Arc discharge, 13. Climate action, E85, Current (fluid), 0210 nano-technology, Stoichiometry, Renewable resource
Abstract: Conference Information: 10th International Conference on Petroleum Phase Behavior and Fouling, Rio de Janeiro, Brazil, June 2009; International audience; Ethanol reforming could provide an interesting path for on-board hydrogen production from renewable resources for fuel cell powering. This paper presents a study on hydrogen production from both pure ethanol and E85 with a plasma reactor. Reforming of ethanol was systemically tested with a non-thermal arc discharge system based on a high voltage/low current power source. A short review on ethanol reforming is first presented as a reference point for this study. Effects of supplied power for plasma generation, air/fuel ratio, and addition of water were then experimentally investigated. Those results were at last compared with a 1D multistage model, exhibiting good correlation. In spite of the early stage of research, a fair conversion rate and fair H2 yields have been achieved (90% and 65%, respectively). The optimal conditions for ethanol reforming are found to be at an oxygen ratio higher than the reaction's stoichiometry, with a slight addition of steam. Discussion is provided concerning the non-thermal plasma effect on the ethanol reforming.
Published: 2010
Full Text: View/download PDF

17. Three Stages Modeling of n-Octane Reforming Assisted by a Nonthermal Arc Discharge

Author: Alexandre Lebouvier, Guillaume Petitpas, Jean-Damien Rollier, Laurent Fulcheri, Adeline Darmon, José Gonzalez-Aguilar, Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, Centre Énergétique et Procédés (CEP), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), DREAM-DTAA (DREAM-DTAA), RENAULT, CEP/Sophia, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris, and The authors gratefully acknowledge Renault SAS for their financial support.
Subjects: Hydrogen, General Chemical Engineering, Energy Engineering and Power Technology, Thermodynamics, chemistry.chemical_element, 02 engineering and technology, 7. Clean energy, 01 natural sciences, Methane, Electric arc, chemistry.chemical_compound, [SPI.ENERG]Engineering Sciences [physics]/domain_spi.energ, Physics::Plasma Physics, 0103 physical sciences, Oxidation, Gasoline, Physics::Chemical Physics, Octane, 010302 applied physics, Chemistry, Reactor, Plasma, 021001 nanoscience & nanotechnology, Plasma arc welding, Fuel Technology, Gas, Electric power, 0210 nano-technology
Abstract: International audience; This paper presents a simplified one-dimensional kinetic model (phenomenological approach) of a nonthermal are discharge plasma reactor used for n-octane reforming. After a description of the model and its main assumptions, a parametric analysis of plasma reformer performance addressing the influence of plasma volume, H2O/C ratio, O/C ratio, and input electric power is presented. Results focusing on energy efficiency and conversion rate, including comparison with experimental gasoline reforming data, are analyzed and discussed. The parametric study has provided an optimum for actual plasma reformer, H2O/C = 0, O/C = 1.1, and input electric power between 20 and 25% LHV. The model shows that nonequilibrium chemistry is produced via fast mixing of arc plasma jet and reactants to quench radicals and other active species generated in the high-temperature region.
Published: 2009
Full Text: View/download PDF

18. Etude des relations structure-fonctions de l´hydrogénase à fer de Clostridium acetobutylicum et de ses partenaires d'oxydo-réduction

Author: Demuez, Marie, Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, INSA de Toulouse, and Laurence Girbal, Philippe Soucaille(Laurence.Girbal@insa-toulouse.fr)
Subjects: Hydrogénase, Centre fer-soufre, Hydrogène, Clostridium acetobutylicum, [SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biochemistry [q-bio.BM], Iron-sulfur cemter, Hydrogen
Abstract: The biological production of hydrogen, a "clean" energy carrier, has recently aroused a great interest. The most efficient reported micro-organism for hydrogen production from hexose is the anaerobic bacterium Clostridium acetobutylicum with a chemostat production of 2.4 l H2 l-1 h-1, catalyzed by the HydA [FeFe]-hydrogenase. In order to understand and improve C. acetobutylicum hydrogen potentialities, we have attempted to characterize the structure-function relationships of HydA with its redox partners. By homology with the [FeFe]-hydrogenase of Clostridium pasteurianum, the [4Fe- 4S] FS4C and [2Fe-2S] FS2 clusters located on the protein surface were predicted to be involved in the inter-molecular electron transfer between HydA and its redox partners. Our goal was to determine the implication of the FS4C and FS2 clusters in this transfer. To do so, mutagenesis by amino acid substitutions and domain deletions was performed on FS4C and FS2. In order to stabilize native and modified hydrogenases, the purification protocol was improved. Native hydrogenase was successfully stabilized, while the persisting instability of modified hydrogenase was an obstacle of their catalytic characterization. Decreased activity of modified hydrogenases was due to a loss of active site functionality and to a lower iron content than the theoretical value. The physiological redox partners of HydA, ferredoxine CAC0303 and flavodoxin, were purified. The complete catalytic profile of HydA and its kinetic parameter with different redox partners for hydrogen uptake and hydrogen production were determined. The optimized purification protocol led to a significant increase of both hydrogen uptake and hydrogen production activities. We confirmed that the in vitro hydrogen uptake was more favourable than the hydrogen production. A very high kcat was determined with the artificial substrate methyl viologen for the hydrogen uptake activity. This result might indicate that methyl viologen could be prone to interact more or less directly with the active site, shunting the intra-molecular electron transfer chain. High catalytic efficiencies for both H2 uptake and H2 production activities were observed with either artificial (except for reduced methyl viologen) and physiological redox partners. This result reflects the high potential of HydA for hydrogen-related activities which is conserved with three different electron carriers. Hence, in iron-limited growth conditions, the in vivo substitution of ferredoxin by flavodoxin might not be a limitation for in vivo hydrogenase activity.; Source d'énergie renouvelable et non polluante, le biohydrogène connaît un intérêt croissant. En culture continue sur glucose, la productivité d'hydrogène la plus élevée est réalisée par la bactérie anaérobie Clostridium acetobutylicum avec 2,4 litres d'hydrogène produit l-1 h-1. Cette production d'hydrogène est catalysée par la [FeFe]-hydrogénase HydA. Pour comprendre et améliorer les capacités de ce micro-organisme pour la production d'hydrogène, nous avons voulu caractériser les relations structure-fonctions de HydA avec ses partenaires d'oxydo-réduction. Par homologie avec l'hydrogénase à fer I de Clostridium pasteurianum, les centres [4Fe-4S] FS4C et [2Fe-2S] FS2, situés en surface de la protéine, pourraient être impliqués dans le transfert inter-moléculaire d'électrons entre HydA et ses partenaires d'oxydoréduction. Notre objectif a alors été de déterminer l'implication de FS4C et FS2 dans ce transfert. Pour cela, des mutations par substitutions d'acides aminés et par délétions de domaines ont été effectuées au niveau de FS4C et FS2. Pour palier des problèmes d'instabilité des hydrogénases à fer native et modifiées, le protocole de purification a été amélioré. L'hydrogénase native a nettement été stabilisée, mais l'instabilité persistante des hydrogénases modifiées est restée une limitation importante pour leur caractérisation catalytique. La perte d'activité des hydrogénases modifiées a pu être corrélée à une perte importante de fonctionnalité de leur site actif et à un nombre d'atomes de fer incorporés inférieur à la valeur théorique. Les partenaires physiologiques d'oxydo-réduction de HydA chez C. acetobutylicum, la ferrédoxine CAC0303 et la flavodoxine, ont été purifiés. Le profil catalytique complet et les paramètres cinétiques des activités de consommation et de production d'hydrogène de HydA native avec différents partenaires d'oxydo-réduction ont été déterminés. L'amélioration du protocole de purification a permis d'augmenter significativement les activités de consommation et production d'hydrogène. Nous avons confirmé la préférence in vitro de HydA à catalyser la consommation de l'hydrogène par rapport à la production. Une valeur très élevée de kcat a été obtenue avec le substrat artificiel, méthyl viologène, en consommation d'hydrogène. Cela semble indiquer que le méthyl viologène pourrait interagir plus ou moins directement avec le site actif de l'enzyme, en évitant le transfert intramoléculaire d'électrons. Des efficacités catalytiques élevées de consommation et de production de l'hydrogène ont été obtenues avec le méthyl viologène (sauf sous sa forme réduite), la ferrédoxine et la flavodoxine. Ce résultat reflète le haut potentiel de HydA pour les réactions liées à l'hydrogène, potentiel conservé aussi bien pour ses partenaires redox physiologiques qu'artificiel. Ainsi, en condition de croissance en carence en fer, la substitution de la ferrédoxine par la flavodoxine ne serait pas une limitation pour l'activité hydrogénase in vivo.
Published: 2007

19. Synthesis of carbon nanotubes and nano-necklaces by thermal plasma process

Author: Jean-Christophe Charlier, Frédéric Fabry, Eusebiu Grivei, Hanako Okuno, Andreı̈ Palnichenko, Thomas Gruenberger, Nicolas Probst, Laurent Fulcheri, José Gonzalez-Aguilar, Unit of Physico-Chemistry and Physics of Materials, Université Catholique de Louvain = Catholic University of Louvain (UCL), Timcal Belgium SA, Timcal, CEP/Sophia, Centre Énergétique et Procédés (CEP), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Instituto IMDEA Energy [Madrid], Instituto IMDEA Energía, Unité de Physico-Chimie et de Physique des Matériaux (PCPM), Université Catholique de Louvain = Catholic University of Louvain (UCL)-European Theoretical Spectroscopy Facility (ETSF), and Unité de Physique-Chimie et physique des matériaux (LLN)
Subjects: Materials science, Selective chemistry of single-walled nanotubes, Carbon nanotubes, chemistry.chemical_element, Nanotechnology, 02 engineering and technology, Carbon nanotube, 010402 general chemistry, 01 natural sciences, Heat treatment, law.invention, [SPI.ENERG]Engineering Sciences [physics]/domain_spi.energ, law, Electron microscopy, General Materials Science, Carbon beads, Plasma reactions, Carbon nanofiber, [SPI.NRJ]Engineering Sciences [physics]/Electric power, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Optical properties of carbon nanotubes, Carbon nanobud, chemistry, Carbide-derived carbon, Carbon nanotube supported catalyst, 0210 nano-technology, Carbon
Abstract: High-yield syntheses of peculiar carbon nanotubes and carbon 'necklace'-like morphologies have been obtained using a sophisticated thermal plasma technology. This method is based on a thermal plasma, which vapourizes the carbonaceous precursor in the presence of metal catalyst. Electron microscopy analyses provide evidences for a 'stacked-cup' structure for the carbon nanotubes. Carbon nano-'necklaces' are constituted by the repetition of multi-wall carbon spheres, connected along one direction in a 'bell'-like structure, and containing frequently an encapsulated metal particle. Microscopic growth mechanisms are also proposed to interpret both syntheses. Due to their intriguing topology, these new carbon nanotubes and necklaces may find important applications in nano-technology. (C) 2004 Elsevier Ltd. All rights reserved.
Published: 2004
Full Text: View/download PDF

20. New Concepts for Production of Scalable Single Layer Oxidized Regions by Local Anodic Oxidation of Graphene.

Author: Quesada SJ, Borrás F, García-Vélez M, Coya C, Climent E, Munuera C, Villar I, de la Peña O'Shea VA, de Andrés A, and Álvarez ÁL
Abstract: A deep comprehension of the local anodic oxidation process in 2D materials is achieved thanks to an extensive experimental and theoretical study of this phenomenon in graphene. This requires to arrange a novel instrumental device capable to generate separated regions of monolayer graphene oxide (GO) over graphene, with any desired size, from micrometers to unprecedented mm 2 , in minutes, a milestone in GO monolayer production. GO regions are manufactured by overlapping lots of individual oxide spots of thousands µm 2 area. The high reproducibility and circular size of the spots allows not only an exhaustive experimental characterization inside, but also establishing an original model for oxide expansion which, from classical first principles, overcomes the traditional paradigm of the water bridge, and is applicable to any 2D-material. This tool predicts the oxidation behavior with voltage and exposure time, as well as the expected electrical current along the process. The hitherto unreported transient current is measured during oxidation, gaining insight on its components, electrochemical and transport. Just combining electrical measurements and optical imaging estimating carrier mobility and degree of oxidation is possible. X-ray photoelectron spectroscopy reveals a graphene oxidation about 30%, somewhat lower to that obtained by Hummers' method., (© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Published: 2019
Full Text: View/download PDF

21. Environmental impact efficiency of natural gas combined cycle power plants: A combined life cycle assessment and dynamic data envelopment analysis approach.

Author: Martín-Gamboa M, Iribarren D, and Dufour J
Abstract: The energy sector is still dominated by the use of fossil resources. In particular, natural gas represents the third most consumed resource, being a significant source of electricity in many countries. Since electricity production in natural gas combined cycle (NGCC) plants provides some benefits with respect to other non-renewable technologies, it is often seen as a transitional solution towards a future low‑carbon power generation system. However, given the environmental profile and operational variability of NGCC power plants, their eco-efficiency assessment is required. In this respect, this article uses a novel combined Life Cycle Assessment (LCA) and dynamic Data Envelopment Analysis (DEA) approach in order to estimate -over the period 2010-2015- the environmental impact efficiencies of 20 NGCC power plants located in Spain. A three-step LCA+DEA method is applied, which involves data acquisition, calculation of environmental impacts through LCA, and the novel estimation of environmental impact efficiency (overall- and term-efficiency scores) through dynamic DEA. Although only 1 out of 20 NGCC power plants is found to be environmentally efficient, all plants show a relatively good environmental performance with overall eco-efficiency scores above 60%. Regarding individual periods, 2011 was -on average- the year with the highest environmental impact efficiency (95%), accounting for 5 efficient NGCC plants. In this respect, a link between high number of operating hours and high environmental impact efficiency is observed. Finally, preliminary environmental benchmarks are presented as an additional outcome in order to further support decision-makers in the path towards eco-efficiency in NGCC power plants., (Copyright © 2017 Elsevier B.V. All rights reserved.)
Published: 2018
Full Text: View/download PDF

22. Life-cycle consequences of internalising socio-environmental externalities of power generation.

Author: García-Gusano D, Istrate IR, and Iribarren D
Subjects: Humans, Spain, Technology, Climate Change, Electricity, Energy-Generating Resources
Abstract: Current national energy sectors are generally unsustainable. Within this context, energy policy-makers face the need to move from economy- to sustainability-oriented schemes. Beyond the integration of the sustainability concept into energy policies through the implementation of techno-economic, environmental and/or social restrictions, other approaches propose the use of externalities -based on life-cycle emissions- to deeply take into account sustainability in the design of the future energy system. In this sense, this work evaluates the consequences of internalising socio-environmental externalities associated with power generation. Besides the calculation of external costs of power generation technologies and their implementation in an energy systems optimisation model for Spain, the life-cycle consequences of this internalisation are explored. This involves the prospective analysis of the evolution of the sustainability indicators on which the externalities are founded, i.e. climate change and human health. For the first time, this is done by endogenously integrating the life-cycle indicators into the energy systems optimisation model. The results show that the internalisation of externalities highly influences the evolution of the electricity production mix as well as the corresponding life-cycle profile, hastening the decarbonisation of the power generation system and thus leading to a significant decrease in life-cycle impacts. This effect is observed both when internalising only climate change externalities and when internalising additionally human health external costs., (Copyright © 2017 Elsevier B.V. All rights reserved.)
Published: 2018
Full Text: View/download PDF

23. A New Pathway for Protein Haptenation by β-Lactams.

Author: Pérez-Ruíz R, Lence E, Andreu I, Limones-Herrero D, González-Bello C, Miranda MA, and Jiménez MC
Subjects: Amino Acid Sequence, Binding Sites, Chromatography, High Pressure Liquid, Ezetimibe chemistry, Ezetimibe metabolism, Humans, Molecular Dynamics Simulation, Protein Binding, Protein Structure, Tertiary, Proteomics, Serum Albumin chemistry, Tandem Mass Spectrometry, Ultraviolet Rays, beta-Lactams chemistry, Serum Albumin metabolism, beta-Lactams metabolism
Abstract: The covalent binding of β-lactams to proteins upon photochemical activation has been demonstrated by using an integrated approach that combines photochemical, proteomic and computational studies, selecting human serum albumin (HSA) as a target protein and ezetimibe (1) as a probe. The results have revealed a novel protein haptenation pathway for this family of drugs that is an alternative to the known nucleophilic ring opening of β-lactams by the free amino group of lysine residues. Thus, photochemical ring splitting of the β-lactam ring, following a formal retro-Staudinger reaction, gives a highly reactive ketene intermediate that is trapped by the neighbouring lysine residues, leading to an amide adduct. For the investigated 1/HSA system, covalent modification of residues Lys414 and Lys525, which are located in sub-domains IIIA and IIIB, respectively, occurs. The observed photobinding may constitute the key step in the sequence of events leading to photoallergy. Docking and molecular dynamics simulation studies provide an insight into the molecular basis of the selectivity of 1 for these HSA sub-domains and the covalent modification mechanism. Computational studies also reveal positive cooperative binding of sub-domain IIIB that explains the experimentally observed modification of Lys414, which is located in a barely accessible pocket (sub-domain IIIA)., (© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Published: 2017
Full Text: View/download PDF

24. Delving into sensible measures to enhance the environmental performance of biohydrogen: A quantitative approach based on process simulation, life cycle assessment and data envelopment analysis.

Author: Martín-Gamboa M, Iribarren D, Susmozas A, and Dufour J
Subjects: Vitis chemistry, Waste Products, Biomass, Computer Simulation, Environment, Hydrogen metabolism, Statistics as Topic
Abstract: A novel approach is developed to evaluate quantitatively the influence of operational inefficiency in biomass production on the life-cycle performance of hydrogen from biomass gasification. Vine-growers and process simulation are used as key sources of inventory data. The life cycle assessment of biohydrogen according to current agricultural practices for biomass production is performed, as well as that of target biohydrogen according to agricultural practices optimised through data envelopment analysis. Only 20% of the vineyards assessed operate efficiently, and the benchmarked reduction percentages of operational inputs range from 45% to 73% in the average vineyard. The fulfilment of operational benchmarks avoiding irregular agricultural practices is concluded to improve significantly the environmental profile of biohydrogen (e.g., impact reductions above 40% for eco-toxicity and global warming). Finally, it is shown that this type of bioenergy system can be an excellent replacement for conventional hydrogen in terms of global warming and non-renewable energy demand., (Copyright © 2016 Elsevier Ltd. All rights reserved.)
Published: 2016
Full Text: View/download PDF

25. Biomass pyrolysis for biochar or energy applications? A life cycle assessment.

Author: Peters JF, Iribarren D, and Dufour J
Subjects: Biomass, Carbon Dioxide analysis, Carbon Sequestration, Coal, Crops, Agricultural chemistry, Charcoal, Soil
Abstract: The application of biochar as a soil amendment is a potential strategy for carbon sequestration. In this paper, a slow pyrolysis system for generating heat and biochar from lignocellulosic energy crops is simulated and its life-cycle performance compared with that of direct biomass combustion. The use of the char as biochar is also contrasted with alternative use options: cofiring in coal power plants, use as charcoal, and use as a fuel for heat generation. Additionally, the influence on the results of the long-term stability of the biochar in the soil, as well as of biochar effects on biomass yield, is evaluated. Negative greenhouse gas emissions are obtained for the biochar system, indicating a significant carbon abatement potential. However, this is achieved at the expense of lower energy efficiency and higher impacts in the other assessed categories when compared to direct biomass combustion. When comparing the different use options of the pyrolysis char, the most favorable result is obtained for char cofiring substituting fossil coal, even assuming high long-term stability of the char. Nevertheless, a high sensitivity to biomass yield increase is found for biochar systems. In this sense, biochar application to low-quality soils where high yield increases are expected would show a more favorable performance in terms of global warming.
Published: 2015
Full Text: View/download PDF

26. A review of biological delignification and detoxification methods for lignocellulosic bioethanol production.

Author: Moreno AD, Ibarra D, Alvira P, Tomás-Pejó E, and Ballesteros M
Subjects: Biofuels, Biomass, Biotechnology methods, Ethanol, Lignin chemistry, Lignin metabolism
Abstract: Future biorefineries will integrate biomass conversion processes to produce fuels, power, heat and value-added chemicals. Due to its low price and wide distribution, lignocellulosic biomass is expected to play an important role toward this goal. Regarding renewable biofuel production, bioethanol from lignocellulosic feedstocks is considered the most feasible option for fossil fuels replacement since these raw materials do not compete with food or feed crops. In the overall process, lignin, the natural barrier of the lignocellulosic biomass, represents an important limiting factor in biomass digestibility. In order to reduce the recalcitrant structure of lignocellulose, biological pretreatments have been promoted as sustainable and environmentally friendly alternatives to traditional physico-chemical technologies, which are expensive and pollute the environment. These approaches include the use of diverse white-rot fungi and/or ligninolytic enzymes, which disrupt lignin polymers and facilitate the bioconversion of the sugar fraction into ethanol. As there is still no suitable biological pretreatment technology ready to scale up in an industrial context, white-rot fungi and/or ligninolytic enzymes have also been proposed to overcome, in a separated or in situ biodetoxification step, the effect of the inhibitors produced by non-biological pretreatments. The present work reviews the latest studies regarding the application of different microorganisms or enzymes as useful and environmentally friendly delignification and detoxification technologies for lignocellulosic biofuel production. This review also points out the main challenges and possible ways to make these technologies a reality for the bioethanol industry.
Published: 2015
Full Text: View/download PDF

27. Review of life-cycle approaches coupled with data envelopment analysis: launching the CFP + DEA method for energy policy making.

Author: Vázquez-Rowe I and Iribarren D
Abstract: Life-cycle (LC) approaches play a significant role in energy policy making to determine the environmental impacts associated with the choice of energy source. Data envelopment analysis (DEA) can be combined with LC approaches to provide quantitative benchmarks that orientate the performance of energy systems towards environmental sustainability, with different implications depending on the selected LC + DEA method. The present paper examines currently available LC + DEA methods and develops a novel method combining carbon footprinting (CFP) and DEA. Thus, the CFP + DEA method is proposed, a five-step structure including data collection for multiple homogenous entities, calculation of target operating points, evaluation of current and target carbon footprints, and result interpretation. As the current context for energy policy implies an anthropocentric perspective with focus on the global warming impact of energy systems, the CFP + DEA method is foreseen to be the most consistent LC + DEA approach to provide benchmarks for energy policy making. The fact that this method relies on the definition of operating points with optimised resource intensity helps to moderate the concerns about the omission of other environmental impacts. Moreover, the CFP + DEA method benefits from CFP specifications in terms of flexibility, understanding, and reporting.
Published: 2015
Full Text: View/download PDF

28. Fed-batch SSCF using steam-exploded wheat straw at high dry matter consistencies and a xylose-fermenting Saccharomyces cerevisiae strain: effect of laccase supplementation.

Author: Moreno AD, Tomás-Pejó E, Ibarra D, Ballesteros M, and Olsson L
Abstract: Background: Lignocellulosic bioethanol is expected to play an important role in fossil fuel replacement in the short term. Process integration, improvements in water economy, and increased ethanol titers are key considerations for cost-effective large-scale production. The use of whole steam-pretreated slurries under high dry matter (DM) conditions and conversion of all fermentable sugars offer promising alternatives to achieve these goals., Results: Wheat straw slurry obtained from steam explosion showed high concentrations of degradation compounds, hindering the fermentation performance of the evolved xylose-recombinant Saccharomyces cerevisiae KE6-12 strain. Fermentability tests using the liquid fraction showed a higher number of colony-forming units (CFU) and higher xylose consumption rates when treating the medium with laccase. During batch simultaneous saccharification and co-fermentation (SSCF) processes, cell growth was totally inhibited at 12% DM (w/v) in untreated slurries. However, under these conditions laccase treatment prior to addition of yeast reduced the total phenolic content of the slurry and enabled the fermentation. During this process, an ethanol concentration of 19 g/L was obtained, corresponding to an ethanol yield of 39% of the theoretical yield. By changing the operation from batch mode to fed-batch mode, the concentration of inhibitors at the start of the process was reduced and 8 g/L of ethanol were obtained in untreated slurries with a final consistency of 16% DM (w/v). When fed-batch SSCF medium was supplemented with laccase 33 hours after yeast inoculation, no effect on ethanol yield or cell viability was found compared to untreated fermentations. However, if the laccase supplementation (21 hours after yeast inoculation) took place before the first addition of substrate (at 25 hours), improved cell viability and an increased ethanol titer of up to 32 g/L (51% of the theoretical) were found., Conclusions: Laccase treatment in SSCF processes reduces the inhibitory effect that degradation compounds have on the fermenting microorganism. Furthermore, in combination with fed-batch operational mode, laccase supplementation allows the fermentation of wheat straw slurry at high DM consistencies, improving final ethanol concentrations and yields.
Published: 2013
Full Text: View/download PDF

29. In situ laccase treatment enhances the fermentability of steam-exploded wheat straw in SSCF processes at high dry matter consistencies.

Author: Moreno AD, Tomás-Pejó E, Ibarra D, Ballesteros M, and Olsson L
Subjects: Saccharomyces cerevisiae metabolism, Fermentation, Laccase metabolism, Triticum metabolism
Abstract: This work evaluates the in situ detoxification of inhibitory lignocellulosic broths by laccases to facilitate their fermentation by the xylose-consuming Saccharomyces cerevisiae F12. Treatment of wheat straw slurries with laccases prior to SSCF processes decreased the total phenolic content by 50-80%, reducing the lag phase and increasing the cell viability. After laccase treatment, a negative impact on enzymatic hydrolysis was observed. This effect, together with the low enzymatic hydrolysis yields when increasing consistency, resulted in a decrease in final ethanol yields. Furthermore, when using high substrate loading (20% DM (w/v)), high concentration of inhibitors prevailed in broths and the absence of an extra nitrogen source led to a total cell growth inhibition within the first 24h in non-treated samples. This inhibition of growth at 20% DM (w/v) was overcome by laccase treatment with no addition of nitrogen, allowing S. cerevisiae F12 to produce more than 22 g/L of ethanol., (Copyright © 2013 Elsevier Ltd. All rights reserved.)
Published: 2013
Full Text: View/download PDF

30. Mechanisms of Defect Generation and Clustering in CH3S Self-Assembled Monolayers on Au(111).

Author: Carro P, Torres D, Diaz R, Salvarezza RC, and Illas F
Abstract: Periodic density functional calculations probe that step edges play a key role as source of defects during self-assembly. It is shown that the self-assembly process strongly reduces the energy required to strip an atom from the gold surface, locally increasing the concentration of surface defects. The thermodynamic driving force for the atom stripping is considerably more favorable along step-edge lines within the self-assembly than on the higher-coordinated terrace sites. Furthermore, the clustering of surface defects is considered, and we probe that the formation of aggregates of vacancies in the form of vacancy pits significantly stabilizes the self-assembly on the terraces of gold, where the role of the step edges is expected to be less significant. The high stability of pit-like structures arises from a balance between the corrugation and the enhanced bonding of defect-rich substrates. Our results demonstrate the important role that step edges play during assembly and could be very valuable for discovering defect-free assembled structures.
Published: 2012
Full Text: View/download PDF

31. Different laccase detoxification strategies for ethanol production from lignocellulosic biomass by the thermotolerant yeast Kluyveromyces marxianus CECT 10875.

Author: Moreno AD, Ibarra D, Fernández JL, and Ballesteros M
Subjects: Biodegradation, Environmental, Fermentation drug effects, Hydrolysis drug effects, Steam, Temperature, Time Factors, Triticum chemistry, Waste Products analysis, Adaptation, Physiological drug effects, Biomass, Biotechnology methods, Ethanol metabolism, Kluyveromyces drug effects, Laccase pharmacology, Lignin metabolism
Abstract: In this work, laccase enzymes were evaluated to detoxify the whole slurry from steam-exploded wheat straw. For it, two different strategies, laccase treatment before or after enzymatic hydrolysis, were employed. The detoxification efficiency was analyzed on enzymatic hydrolysis and fermentation levels by the thermotolerant yeast Kluyveromyces marxianus. Laccases reduced phenolic compounds without affecting weak acids and furan derivates. A lower glucose recovery was observed when laccase treatments were carried out before enzymatic hydrolysis, phenomenon that was not showed after enzymatic hydrolysis. In contrast, both laccase treatment strategies enhanced ethanol concentrations, reducing significantly the lag phase of the yeast and allowing substrate loading increments of saccharification and fermentation broths., (Copyright © 2011 Elsevier Ltd. All rights reserved.)
Published: 2012
Full Text: View/download PDF

32. Direct evidence of the SMSI decoration effect: the case of Co/TiO2 catalyst.

Author: O'Shea VA, Galván MC, Prats AE, Campos-Martin JM, and Fierro JL
Abstract: First direct images of cobalt nanoparticles covered by a few atomic layers thick TiO(x) moieties after reduction treatment of a Co/TiO(2) system with the simultaneous formation of Co-O-Ti bonds confirm the development of the SMSI decoration effect., (This journal is © The Royal Society of Chemistry 2011)
Published: 2011
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources

Refine your results

32 results on '"Instituto IMDEA Energía"'

1. How reproducible are surface areas calculated from the BET equation?

2. Towards improving the capacity of UiO-66 for antibiotic elimination from contaminated water

3. Covalent and Selective Grafting of Polyethylene Glycol Brushes at the Surface of ZIF-8 for the Processing of Membranes for Pervaporation

4. Nickel phosphonate MOF as efficient water splitting photocatalyst

5. A new proton-conducting Bi-carboxylate framework

6. Irradiance-Controlled Photoassisted Synthesis of Sub-Nanometre Sized Ruthenium Nanoparticles as Co-Catalyst for TiO2 in Photocatalytic Reactions

7. Highly robust La1-xTixFeO3 dual catalyst with combined photocatalytic and photo-CWPO activity under visible light for 4-chlorophenol removal in water

8. A highly conductive nanostructured PEDOT polymer confined into the mesoporous MIL-100(Fe)

9. Comparison of Chlorella vulgaris and cyanobacterial biomass: cultivation in urban wastewater and methane production

10. Exploring the catalytic performance of a series of bimetallic MIL-100(Fe, Ni) MOFs

11. On Physical Modeling of Lithium-Ion Cells and Adaptive Estimation of their State-of-Charge

12. Robust Monolithic Metal-Organic Framework with Hierarchical Porosity

13. GraftFast Surface Engineering to Improve MOF Nanoparticles Furtiveness

14. Anaerobic digestion of microalgal biomass: Challenges, opportunities and research needs

15. Biocompatible polymer–metal–organic framework composite patches for cutaneous administration of cosmetic molecules

16. Ethanol and E85 reforming assisted by a non-thermal arc discharge

17. Three Stages Modeling of n-Octane Reforming Assisted by a Nonthermal Arc Discharge

18. Etude des relations structure-fonctions de l´hydrogénase à fer de Clostridium acetobutylicum et de ses partenaires d'oxydo-réduction

19. Synthesis of carbon nanotubes and nano-necklaces by thermal plasma process

20. New Concepts for Production of Scalable Single Layer Oxidized Regions by Local Anodic Oxidation of Graphene.

21. Environmental impact efficiency of natural gas combined cycle power plants: A combined life cycle assessment and dynamic data envelopment analysis approach.

22. Life-cycle consequences of internalising socio-environmental externalities of power generation.

23. A New Pathway for Protein Haptenation by β-Lactams.

24. Delving into sensible measures to enhance the environmental performance of biohydrogen: A quantitative approach based on process simulation, life cycle assessment and data envelopment analysis.

25. Biomass pyrolysis for biochar or energy applications? A life cycle assessment.

26. A review of biological delignification and detoxification methods for lignocellulosic bioethanol production.

27. Review of life-cycle approaches coupled with data envelopment analysis: launching the CFP + DEA method for energy policy making.

28. Fed-batch SSCF using steam-exploded wheat straw at high dry matter consistencies and a xylose-fermenting Saccharomyces cerevisiae strain: effect of laccase supplementation.

29. In situ laccase treatment enhances the fermentability of steam-exploded wheat straw in SSCF processes at high dry matter consistencies.

30. Mechanisms of Defect Generation and Clustering in CH3S Self-Assembled Monolayers on Au(111).

31. Different laccase detoxification strategies for ethanol production from lignocellulosic biomass by the thermotolerant yeast Kluyveromyces marxianus CECT 10875.

32. Direct evidence of the SMSI decoration effect: the case of Co/TiO2 catalyst.

Catalog

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

Publisher

32 results on '"Instituto IMDEA Energía"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources