Tuning Selectivity of Acidic Carbon Dioxide Electrolysis via Surface Modification

Electrocatalytic CO2 reduction to energy-dense organic compounds useful for industry is an interesting strategy for organic synthesis using non-fossil carbon feedstocks and for storing energy from intermittent sources in the form of chemical energy. Electrolysis under acidic conditions has been rece...

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Bibliographic Details
Published in:Chemistry of materials 2023-09, Vol.35 (17), p.7060-7068
Main Authors: Vichou, Elli, Perazio, Alessandro, Adjez, Yanis, Gomez-Mingot, Maria, Schreiber, Moritz W., Sánchez-Sánchez, Carlos M., Fontecave, Marc
Format: Article
Language:English
Subjects:
Chemical Sciences
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Summary:Electrocatalytic CO2 reduction to energy-dense organic compounds useful for industry is an interesting strategy for organic synthesis using non-fossil carbon feedstocks and for storing energy from intermittent sources in the form of chemical energy. Electrolysis under acidic conditions has been recently studied as a promising way to avoid carbon loss due to the inevitable carbonate formation using traditional neutral or alkaline electrolytes. Here we report one of the very first examples showing that a molecular modification of the surface of copper nanoparticles allows tuning the selectivity of the reaction toward favoring C2 products, ethylene and ethanol, at industrially relevant current densities at acidic pH (
ISSN:0897-4756
1520-5002
DOI:10.1021/acs.chemmater.3c01326