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Enhancing carbon dioxide gas-diffusion electrolysis by ... - Nature
2021年1月8日 · Here, we show that a hydrophobic microenvironment can significantly enhance CO 2 gas-diffusion electrolysis. For proof-of-concept, we use commercial copper nanoparticles and disperse...
Characterizing CO2 Reduction Catalysts on Gas Diffusion …
2022年5月3日 · Here we seek to re-characterize the activity, selectivity, and stability of the five most utilized transition metal catalysts for CO 2 RR (Ag, Au, Pd, Sn, and Cu) at elevated reaction rates through electrochemical operation, physical characterization, and varied operating parameters to provide a renewed resource and point of comparison.
Solid-Diffusion Synthesis of Single-Atom Catalysts Directly from …
2019年2月20日 · Herein, we describe an effective approach to construct a hierarchical and atomistic catalyst by the solid-state diffusion between the bulk Ni and N-doped carbon (N-C) layer. Especially, this carbon paper is self-supported and can be directly used as a binder-free electrode for CO 2 reduction.
Developing Catalysts Integrated in Gas-Diffusion Electrodes for CO2 ...
2023年9月12日 · Flow and MEA cells provide a solution in the form of gas-diffusion electrodes (GDEs) that enable gaseous CO 2 to closely reach the catalyst layer and yield record-high current densities.
Gas diffusion in catalyst layer of flow cell for CO2 …
2023年8月7日 · The use of gas diffusion electrode (GDE) based flow cell can realize industrial-scale CO2 reduction reactions (CO2RRs). Controlling local CO2 and CO intermediate diffusion plays a key role in CO2RR toward multi-carbon (C2+) products.
How Catalyst Dispersion Solvents Affect CO2 Electrolyzer Gas Diffusion …
2021年8月14日 · Cathode gas diffusion electrodes (GDEs) in CO 2 electrolyzers facilitate reagent transport and the reduction of CO 2 into chemicals and fuels. While GDEs are routinely leveraged to achieve high rates of product formation, design principles for high-performing cathodes have not yet been established.
Gas diffusion electrodes and membranes for CO2 reduction
2021年9月17日 · Gas diffusion electrodes (GDEs) and polymer electrolyte membranes are used to mediate these critical processes. Consequently, the design and development of GDEs and membranes tailored for the...
Analytical modelling of CO2 reduction in gas-diffusion electrode ...
2021年10月10日 · By developing a simple and freely available analytical model of a cathodic catalyst layer configured for the production of CO, we investigate the relationships between electrode reaction kinetics, cell operation conditions, catholyte composition and cell performance.
Simultaneous utilization of CO2 and CH4 through dry reforming of ...
1 天前 · Their emissions mainly come from carbon dioxide (CO 2), methane (CH 4), ... To ensure the catalytic reaction took place within the kinetic regime, the external and internal diffusion limitations of the catalyst were initially assessed by calculating the Mears and Weisz-Prater criteria before determining the equations and kinetic parameters [47 ...
Electrochemical CO2 Reduction: Tailoring Catalyst Layers in Gas ...
2020年8月5日 · In this context, the application of gas diffusion electrodes is promising due to efficient CO 2 mass transport. Herein, a scalable and reproducible method is presented for polytetrafluoroethylene (PTFE)-bound copper gas diffusion electrodes (GDEs) via the dry-pressing method and compositional parameters are emphasized to alter such electrodes.