Behavior Regulation of *CO over Self-Evolution Tandem Catalysts Under Tuned Interfacial Electric Field Boosts CO₂ Electroreduction.

ABSTRACT: Tandem or self-evolution Cu-based catalysts effectively regulate *CO to promote the conversion of CO₂ electroreduction to multicarbon (C₂₊) products. DFT calculations reveal that the adsorption capacity of *CO varies under different interfacial electric field intensities for the Cu, Ag/Cu, Pd/Cu, and Au/Cu models. Accordingly, we design three kinds of self-evolution tandem catalysts and investigate the adsorption and migration behaviors of *CO under interfacial electric fields. Electrochemical CO₂ reduction test results indicate that the higher CO selectivity of Au/Cu is attributed to its weak *CO adsorption capacity, confirmed by in situ attenuated total reflection-infrared and in situ Raman. The low C₂₊ selectivity of Pd/Cu is owing to its high

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC12462755 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature