Promote electroreduction of CO₂ via catalyst valence state manipulation by surface-capping ligand.

ABSTRACT: Electrochemical CO₂ reduction provides a potential means for synthesizing value-added chemicals over the near equilibrium potential regime, i.e., formate production on Pd-based catalysts. However, the activity of Pd catalysts has been largely plagued by the potential-depended deactivation pathways (e.g., [Formula: see text]-PdH to [Formula: see text]-PdH phase transition, CO poisoning), limiting the formate production to a narrow potential window of 0 V to -0.25 V vs. reversible hydrogen electrode (RHE). Herein, we discovered that the Pd surface capped with polyvinylpyrrolidone (PVP) ligand exhibits effective resistance to the potential-depended deactivations and can catalyze formate production at a much extended potential window (beyond -0.7 V vs. RHE) with significantly improv

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC10235936 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature