Manipulating C-C coupling pathway in electrochemical CO₂ reduction for selective ethylene and ethanol production over single-atom alloy catalyst.

ABSTRACT: Manipulation C-C coupling pathway is of great importance for selective CO₂ electroreduction but remain challenging. Herein, two model Cu-based catalysts, by modifying Cu nanowires with Ag nanoparticles (AgCu NW) and Ag single atoms (Ag₁Cu NW), respectively, are rationally designed for exploring the C-C coupling mechanisms in electrochemical CO₂ reduction reaction (CO₂RR). Compared to AgCu NW, the Ag₁Cu NW exhibits a more than 10-fold increase of C₂ selectivity in CO₂ reduction to ethanol, with ethanol-to-ethylene ratio increased from 0.41 over AgCu NW to 4.26 over Ag₁Cu NW. Via a variety of operando/in-situ techniques and theoretical calculation, the enhanced ethanol selectivity over Ag₁Cu NW

SUBMITTER: Wang S 

PROVIDER: S-EPMC11599749 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature