Electronic perturbation of Cu nanowire surfaces with functionalized graphdiyne for enhanced CO₂ reduction reaction.

ABSTRACT: Electronic perturbation of the surfaces of Cu catalysts is crucial for optimizing electrochemical CO₂ reduction activity, yet still poses great challenges. Herein, nanostructured Cu nanowires (NW) with fine-tuned surface electronic structure are achieved via surface encapsulation with electron-withdrawing (-F) and -donating (-Me) group-functionalized graphdiynes (R-GDY, R = -F and -Me) and the resulting catalysts, denoted as R-GDY/Cu NW, display distinct CO₂ reduction performances. In situ electrochemical spectroscopy revealed that the *CO (a key intermediate of the CO₂ reduction reaction) binding affinity and consequent *CO coverage positively correlate with the Cu surface oxidation state, leading to favorable C-C coupling on F-GDY/Cu NW over Me-GDY

SUBMITTER: Zou H 

PROVIDER: S-EPMC11562832 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature