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Your search keyword '"Eduardo Marcelo Perassi"' showing total 4 results
Start Over Author "Eduardo Marcelo Perassi" Topic 010402 general chemistry
4 results on '"Eduardo Marcelo Perassi"'

1. Capacity fading model for a solid electrolyte interface with surface growth

Author

Ezequiel P. M. Leiva and Eduardo Marcelo Perassi

Subjects
Materials science, General Chemical Engineering, Analytical chemistry, Silicon anode, 02 engineering and technology, Electrolyte, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Lithium-ion battery, 0104 chemical sciences, Electrochemistry, Fading, 0210 nano-technology, Capacity loss
Abstract

Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Cordoba. Instituto de Investigaciones en Fisico-quimica de Cordoba. Universidad Nacional de Cordoba. Facultad de Ciencias Quimicas. Instituto de Investigaciones en Fisico-quimica de Cordoba; Argentina

Published
2019
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2. A theoretical model to determine intercalation entropy and enthalpy: Application to lithium/graphite

Author

Ezequiel P. M. Leiva and Eduardo Marcelo Perassi

Subjects
GRAPHITE, Inorganic chemistry, Intercalation (chemistry), Enthalpy, Thermodynamics, 02 engineering and technology, Stage ii, 010402 general chemistry, 01 natural sciences, Lithium-ion battery, Ion, Electrochemical cell, purl.org/becyt/ford/1 [https], lcsh:Chemistry, Condensed Matter::Materials Science, MONTE CARLO, Condensed Matter::Superconductivity, Electrochemistry, purl.org/becyt/ford/1.4 [https], LITHIUM-ION BATTERY, Graphite, Entropy (energy dispersal), Physics::Chemical Physics, Physics::Biological Physics, Quantitative Biology::Biomolecules, Chemistry, Otras Ciencias Químicas, Ciencias Químicas, ENTROPY, 021001 nanoscience & nanotechnology, LATTICE-GAS, 0104 chemical sciences, lcsh:Industrial electrochemistry, lcsh:QD1-999, INTERCALATION, 0210 nano-technology, CIENCIAS NATURALES Y EXACTAS, lcsh:TP250-261
Abstract

Intercalation compounds play a fundamental role to increase the capabilities of electrochemical cells to store energy. A new computational model is developed to calculate the intercalation entropy and enthalpy in electrochemical intercalation compounds. The new methodology is applied to the intercalation of lithium ions into graphite, finding a good agreement with experimental measurements. The main features of the experimental data are correctly reproduced, including the step in the intercalation entropy and enthalpy for the stage II to stage I transition. Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Leiva, Ezequiel Pedro M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina

Published
2016

3. Accuracy and Mechanistic Details of Optical Printing of Single Au and Ag Nanoparticles

Author

Pavel Zemánek, Eduardo Marcelo Perassi, Ianina L. Violi, Fernando D. Stefani, Fernando Diaz, Lukáš Chvátal, Emiliano Cortés, Santiago Cerrota, and Julian Gargiulo

Subjects
colloidal patterning, Materials science, UTN, General Physics and Astronomy, Physics::Optics, Ag nanoparticles, Nanotechnology, 02 engineering and technology, INGENIERÍAS Y TECNOLOGÍAS, 010402 general chemistry, 01 natural sciences, law.invention, optical forces, law, General Materials Science, Laser power scaling, Surface plasmon resonance, Brownian motion, Nanotecnología, optical tweezers, General Engineering, Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing), FRD, 021001 nanoscience & nanotechnology, Laser, Nano-materiales, 0104 chemical sciences, Wavelength, Nanolithography, Optical tweezers, nanofabrication, 0210 nano-technology
Abstract

Optical printing is a powerful all-optical method that allows the incorporation of colloidal nanoparticles (NPs) onto substrates with nanometric precision. Here, we present a systematic study of the accuracy of optical printing of Au and Ag NPs, using different laser powers and wavelengths. When using light of wavelength tuned to the localized surface plasmon resonance (LSPR) of the NPs, the accuracy improves as the laser power is reduced, whereas for wavelengths off the LSPR, the accuracy is independent of the laser power. Complementary studies of the printing times of the NPs reveal the roles of Brownian and deterministic motion. Calculated trajectories of the NPs, taking into account the interplay between optical forces, electrostatic forces, and Brownian motion, allowed us to rationalize the experimental results and gain a detailed insight into the mechanism of the printing process. A clear framework is laid out for future optimizations of optical printing and optical manipulation of NPs near substrates. Fil: Gargiulo, Julian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Bionanociencias ; Argentina Fil: Violi, Ianina Lucila. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Bionanociencias ; Argentina Fil: Cerrota, Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Bionanociencias ; Argentina Fil: Chvátal, Lukás. Czech Academy of Sciences. Institute of Scientific Instruments; República Checa Fil: Cortés, Emiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Bionanociencias ; Argentina Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina Fil: Díaz, Fernando. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina Fil: Zemánek, Pavel. Czech Academy of Sciences. Institute of Scientific Instruments; República Checa Fil: Stefani, Fernando Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Centro de Investigaciones en Bionanociencias ; Argentina

Published
2017

4. Shedding light on the entropy change found for the transition stage II→stage I of Li-Ion storage in graphite

Author

Daniel E. Barraco, Ezequiel P. M. Leiva, and Eduardo Marcelo Perassi

Subjects
Physics, Renewable Energy, Sustainability and the Environment, Entropy, Otras Ciencias Químicas, Ciencias Químicas, Thermodynamics, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Ion, purl.org/becyt/ford/1 [https], Transition stage, Lithium ion batteries, purl.org/becyt/ford/1.4 [https], Materials Chemistry, Electrochemistry, Graphite, 0210 nano-technology, CIENCIAS NATURALES Y EXACTAS
Abstract

In order to examine the controversial hypothesis put forward to explain the entropy step experimentally observed for the stage II to stage I transition for lithium intercalation in graphite, a transparent statistical mechanical model is developed. The results obtained show that the entropy increase can be explained by the change of configurational entropy occurring at occupation of half of the lattice. Comparison with experimental data shows that attractive interactions between intercalated particles in the same layer must be assumed, in agreement with the ansatz made in the original experimental work. Fil: Leiva, Ezequiel Pedro M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Perassi, Eduardo Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina Fil: Barraco Diaz, Daniel Eugenio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina

Published
2016

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