Uniform wrapping of copper() oxide nanocubes by self-controlled copper-catalyzed azide-alkyne cycloaddition toward selective carbon dioxide electrocatalysis

Copper( i ) oxide nanocubes were wrapped with an extremely uniform organic layer grown by self-controlled, Cu-mediated catalysis. This layer aided in retaining the initial cubic structure of the copper nanocubes during their use as a CO 2 reduction electrocatalyst, resulting in high CO 2 reduction selectivity by strong suppression of hydrogen evolution because of exclusion of water from the surface. Cu 2 O nanocubes were wrapped with an extremely uniform layer through self-controlled growth on their surface, improving their CO 2 reduction selectivity.