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Hard‐ and softwood residues (from birch and pine respectively) of forestry, pulp, and paper industries (e. g. sawdust, branches) were used to prepare biochar, which was then oxidized using nitric acid to produce catalytic carboxylic acid functionalized biochar. This oxidized biochar, ox–bc, in the presence of a co‐catalyst, showed excellent catalytic activity towards the cycloaddition reaction between CO2 and epoxides using mild conditions (CO2 pressure, 10 bar). No differences in catalytic activity were seen between the two types of oxidized biochar despite the hardwood ox–bc having a significantly higher surface area. The catalysts function through activation of the epoxide reagent via hydrogen‐bonding with carboxylic acid groups on the surface. The number of surface acid groups was reduced by reaction with 3‐aminopropyltriethoxysilane and the resulting material was inactive in the reactions studied. The ox–bc catalysts are sustainable, economic, and renewable alternatives for currently used heterogeneous systems and are also the first carbon‐based materials derived from biomass to exhibit good recyclability (over five runs) with a broad substrate scope for the production of cyclic carbonates from epoxides and CO2. [ABSTRACT FROM AUTHOR]

Photocatalytic reduction of CO2 is increasingly attracting research interest for the growing concerns about climate change resulted from the greenhouse effect due to the industrial emission of CO2. In this paper, we report the synthesis of Zn3In2S6 modified TiO2 nanocomposite via a facial hydrothermal method. The samples were characterized by photoluminescence spectra (PL), UV‐vis diffuse reflectance spectra (DRS), X‐ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscope (TEM), X‐ray photoelectron spectroscopy (XPS) and energy dispersive X‐ray spectroscopy (EDS). The production rate of CO from CO2 is dramatically improved over the obtained composite catalyst. The contact between Zn3In2S6 and TiO2 is responsible for this ameliorated photocatalytic activity because of the formation of the Z‐scheme charge transfer mechanism which favors the separation of photo‐induced charges. Photogenic drama: Zn3In2S6 was used to modify TiO2 based photocatalytic system, giving rise to a greatly improved reduction of CO2 into CO. The ameliorated photocatalytic activity might be ascribable to Z‐scheme electron transfer, resulting in dramatically enhanced separation and transfer efficiencies of photo‐induced electron‐hole. [ABSTRACT FROM AUTHOR]

The dry reforming of shale gas (methane and ethane with an average ratio of 4 : 1) with carbon dioxide (DRS) is considered to be a promising way to produce syngas, which widens the utilization of shale gas and mitigates carbon dioxide emission. In this paper, Ce modified Ni‐based catalysts were developed and the corresponding catalytic performances for DRS were investigated with a fixed bed reactor. Results showed that the catalyst containing 5 wt% of Ni and 5 wt% of Ce performed a best catalytic effect, including the selectivity of syngas and the carbon resistance performance, which is due to the good metal dispersion, strong interaction between Ni and Ce, and the formation of Ni‐CeOx solid solution. The electron transfer between Ni and Ce, substitution of Ni for Ce, and the sequential oxygen vacancies or defects, play significant roles in activating CH4, C2H6 and CO2. The conversion of reactant gas increased with temperature, while the selectivity of syngas is little affected with temperature. In addition, the desired catalyst containing 5 wt% of Ni and 5 wt% of Ce showed good stability in the long‐time operation, which indicates that the Ce modified Ni‐based catalyst is a promising one for the dry reforming of shale gas. High fives! The catalyst 5Ni‐5Ce exhibits the best catalytic performance in the dry reforming of shale gas and CO2. The introduction of Ce creates strong interaction between Ni and Ce, which enhances the electron transfer between them. And the substitution of Ni for Ce produces oxygen vacancies and defects, which can accelerate the adsorption and activation of the reactant gases molecule, further promoting the reaction. [ABSTRACT FROM AUTHOR]

The Front Cover shows an amino‐modified copper(I) oxide catalyst reduces the Gibbs free energy for electrocatalytic reduction of carbon dioxide to ethylene. The roller coasters and tracks represent the catalysts and the Gibbs free energy, respectively. In their Full Paper, H. Deng et al, illustrate that the modification of amino on copper(I) oxide promotes the hydrogenation of *CO to *CHO, which is the rate‐determining step for the formation of ethylene. This work presents an amino‐assisted carbon‐carbon coupling mechanism during electroreduction of carbon dioxide to multi‐carbon products. More information can be found in the Full Paper by H. Deng et al. [ABSTRACT FROM AUTHOR]

4065 4065 1 10/11/21 20211007 NES 211007 B The Cover Feature b highlights the successful use of gallium aminotrisphenolate compounds as catalysts for the synthesis of cyclic carbonates from CO SB 2 sb and epoxides. In their Full Paper, L. Álvarez-Miguel et al. highlight the facile synthesis of the gallium compounds, demonstrate their wide substrate scope when employed as catalysts for cyclic carbonate synthesis and compare the gallium compounds to their aluminium congeners, through both experiments and a detailed DFT study. [Extracted from the article]

The Cover Feature shows the formation of silylformates, bis(silyl)acetals or methoxysilanes by catalytic reduction of CO2 with hydrosilanes. In their Full Paper, F. J. Fernández‐Alvarez and L. A. Oro summarize the different catalytic systems that have shown to be efficient for the transformation of CO2 into value added chemicals using silicon‐hydrides as reductants. Moreover, a description of some catalysts that have been employed for the formylation and/or methylation of the N−H bonds of secondary and/or primary amines by their reaction with CO2 and hydrosilanes have also been included. In addition, this Review also contains a brief description of the performance and conditions of each reaction. More information can be found in the Full Paper by F. J. Fernández‐Alvarez and L. A. Oro on page 4783 in Issue 21, 2018 (DOI: 10.1002/cctc.201800699). [ABSTRACT FROM AUTHOR]

In their Full Paper, L. R. Borges et al. proposed the easy preparation of materials containing controllable platinum species depending on the ceria materials' surface energy. EN ceria platinum species oxygen vacancies CO oxidation. Cover Feature: Towards the Effect of Pt0/Pt + and Ce3+ Species at the Surface of CeO2 Crystals: Understanding the Nature of the Interactions under CO Oxidation Conditions (5/2021). [Extracted from the article]

Keywords: carbon dioxide; hydrogenation; Cu-based catalyst; hydrogen enrichment; ethylene carbonate EN carbon dioxide hydrogenation Cu-based catalyst hydrogen enrichment ethylene carbonate 3599 3599 1 07/23/20 20200721 NES 200721 The Cover Feature shows a nanoflower-like Cu/SiO SB 2 sb catalyst of H SB 2 sb -enrichment capacity used for the hydrogenation of ethylene carbonate (EC) derived from CO SB 2 sb to produce methanol and ethylene glycol. In their Full Paper, M. Zhang, Y. Yang et al. synthesized the nanoflower-like copper catalysts with open-ended fibers and well-dispersed active species via one-step hydrolysis precipitation method. Carbon dioxide, hydrogenation, Cu-based catalyst, hydrogen enrichment, ethylene carbonate. [Extracted from the article]

The Front Cover shows the production of formic acid from CO2 and H2 by a ternary hybrid catalyst composed of an Ir complex, poly(ethyleneimine) and titanate nanotubes (TNTs).In their Full Paper, Y. Kuwahara et al. demonstrate that immobilization of a poly(ethyleneimine)‐tethered Ir complex catalyst inside the cavity space of TNTs can afford efficient catalysts with both improved activity and reusability, owing to the CO2 adsorption capacity of poly(ethyleneimine) and stabilizing effect of TNTs. This study can potentially offer a generalized method to capture and convert CO2, which is particularly desirable for sustainable formic acid production. More information can be found in the Full Paper by Y. Kuwahara et al. on page 1906 in Issue 11, 2017 (DOI: 10.1002/cctc.201700508). [ABSTRACT FROM AUTHOR]

The front cover artwork for Issue 10/2019 is a collaboration between the O'Hair group (University of Melbourne, Australia) and the Bonačić‐Koutecký group (University of Split, Croatia). The image shows how gas‐phase studies of model systems can be used for the design of MOF based catalysts for the selective decomposition of formic acid into hydrogen and carbon dioxide, a reaction of considerable interest for hydrogen storage applications. See the Full Paper itself at https://doi.org/10.1002/cctc.201900346. [ABSTRACT FROM AUTHOR]

Abstract: The front cover artwork for issue 9/2018 is provided by Prof. Jin‐Ook Baeg's artificial photosynthesis research group from Korea Research Institute of Chemical Technology (KRICT), Republic of Korea. The image shows a light harvesting 3D aromatic polymer (3DAP) derived from triptycene that can efficiently and selectively convert CO2 to formic acid. See the Full Paper itself at https://doi.org/10.1002/cctc.201701730. [ABSTRACT FROM AUTHOR]

The front cover artwork for Issue 18/2017 is provided by the Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Inorganic Chemistry, Berlin (Germany). The image shows the proposed network of consecutive and parallel reactions in oxidation of propane over vanadium oxide catalysts. Detailed understanding of the complex system is necessary to advance catalyst and process design in terms of high selectivity to desired olefins and oxygenates, prevention of CO2 formation, and sustainable use of resources. See the Full Paper itself at . [ABSTRACT FROM AUTHOR]

The Cover shows a state‐of‐the‐art aluminum porphyrin‐based hyper‐crosslinked polymer for the chemical fixation of CO2 into cyclic carbonates under mild conditions.In their Full Paper, Y. J. Chen et al. demonstrate the outstanding catalytic activity and excellent reusability of aluminum porphyrin‐based heterogeneous catalysts in the solvent‐free synthesis of cyclic carbonates from epoxides and CO2 in the presence of tetrabutylammonium bromide as cocatalyst. [ABSTRACT FROM AUTHOR]

The front cover artwork for Issue 13/2016 is provided by researchers from the Catalysis Engineering group, Chemical Engineering Department, Delft University of Technology (The Netherlands). The image shows the formation of covalent triazine framework (CTF) based spheres by using commercially available polyimide as a binder. See the Full Paper itself at . [ABSTRACT FROM AUTHOR]

The electrochemical reduction of CO2 The cover picture shows MoS2 and Ni‐doped MoS2 catalysts, and the reaction path of CO2 electrochemical reduction to CH4 on Ni‐doped MoS2. In their Full Paper on p. 1899 ff., J. K. Nørskov and co‐workers describe how their density functional theory calculations predict MoS2, MoSe2, and Ni‐doped MoS2 to have significantly improved activity for CO2 electrochemical reduction over the best transition metal catalysts. This activity arises from the binding of intermediates to different sites, which allows for deviations from the scaling relations between the intermediates on transition metals. Their results point to the broader application of the active edge sites of transition metal dichalcogenides in complex electrochemical processes. [ABSTRACT FROM AUTHOR]