Steering carbon dioxide reduction toward C-C coupling using copper electrodes modified with porous molecular films.

ABSTRACT: Copper offers unique capability as catalyst for multicarbon compounds production in the electrochemical carbon dioxide reduction reaction. In lieu of conventional catalysis alloying with other elements, copper can be modified with organic molecules to regulate product distribution. Here, we systematically study to which extent the carbon dioxide reduction is affected by film thickness and porosity. On a polycrystalline copper electrode, immobilization of porous bipyridine-based films of varying thicknesses is shown to result in almost an order of magnitude enhancement of the intrinsic current density pertaining to ethylene formation while multicarbon products selectivity increases from 9.7 to 61.9%. In contrast, the total current density remains mostly unaffected by the modification once i

SUBMITTER: Zhao S 

PROVIDER: S-EPMC9932156 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature