Quasi-graphitic carbon shell-induced Cu confinement promotes electrocatalytic CO₂ reduction toward C₂₊ products.

ABSTRACT: For steady electroconversion to value-added chemical products with high efficiency, electrocatalyst reconstruction during electrochemical reactions is a critical issue in catalyst design strategies. Here, we report a reconstruction-immunized catalyst system in which Cu nanoparticles are protected by a quasi-graphitic C shell. This C shell epitaxially grew on Cu with quasi-graphitic bonding via a gas-solid reaction governed by the CO (g) - CO₂ (g) - C (s) equilibrium. The quasi-graphitic C shell-coated Cu was stable during the CO₂ reduction reaction and provided a platform for rational material design. C₂₊ product selectivity could be additionally improved by doping p-block elements. These elements modulated the electronic structure of the Cu surface and its

SUBMITTER: Kim JY 

PROVIDER: S-EPMC8217160 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature