Steering the Absorption Configuration of Intermediates over Pd-Based Electrocatalysts toward Efficient and Stable CO₂ Reduction.

ABSTRACT: Palladium (Pd) catalysts are promising for electrochemical reduction of CO₂ to CO but often can be deactivated by poisoning owing to the strong affinity of *CO on Pd sites. Theoretical investigations reveal that different configurations of *CO endow specific adsorption energies, thereby dictating the final performances. Here, a regulatory strategy toward *CO absorption configurations is proposed to alleviate CO poisoning by simultaneously incorporating Cu and Zn atoms into ultrathin Pd nanosheets (NSs). As-prepared PdCuZn NSs can catalyze CO production at a wide potential window (-0.28 to -0.78 V vs RHE) and achieve a maximum FE_CO of 96% at -0.35 V. Impressively, it exhibits stable CO production of 100 h under ∼95% FE_CO with no decay. Combined results from

SUBMITTER: Wei S 

PROVIDER: S-EPMC11803748 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature