Restructuring-Regulated Bismuth Catalyst Promotes Electrochemical CO₂ Reduction to Formic Acid in Acidic Electrolyte.

ABSTRACT: Electrochemical CO₂ reduction (eCO₂R) in acidic electrolytes is appealing due to its high CO₂ utilization efficiency. For this reaction, bismuth (Bi)-based catalysts have drawn considerable attention for their potential in producing formate/formic acid. However, the presynthesized materials for Bi-based catalysts often undergo restructuring during electrocatalysis, resulting in altered electrochemical performance. Furthermore, the mechanisms underlying the restructuring of Bi-based catalysts in acidic environments have not yet been clearly elucidated. Herein, distinct restructuring mechanisms are revealed in structurally different Bi-based compounds, such as Bi₉O_7.5S₆ and Bi₂O₂S. Among them, the Bi

SUBMITTER: Chen G 

PROVIDER: S-EPMC12822384 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature