In-situ constructed Cu/CuNC interfaces for low-overpotential reduction of CO₂ to ethanol.

ABSTRACT: Electrochemical CO₂ reduction (ECR) to high-value multi-carbon (C₂₊) products is critical to sustainable energy conversion, yet the high energy barrier of C-C coupling causes catalysts to suffer high overpotential and low selectivity toward specific liquid C₂₊ products. Here, the electronically asymmetric Cu-Cu/Cu-N-C (Cu/CuNC) interface site is found, by theoretical calculations, to enhance the adsorption of *CO intermediates and decrease the reaction barrier of C-C coupling in ECR, enabling efficient C-C coupling at low overpotential. The catalyst consisting of high-density Cu/CuNC interface sites (noted as ER-Cu/CuNC) is then accordingly designed and constructed in situ on the high-loading Cu-N-C single atomic catalysts. Systematical experiments c

SUBMITTER: Yang Y 

PROVIDER: S-EPMC10171628 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature