Anion Effect in Electrochemical CO₂ Reduction: From Spectators to Orchestrators.

ABSTRACT: The electrochemical CO₂ reduction reaction (eCO₂RR) offers a pathway to produce valuable chemical fuels from CO₂. However, its efficiency in aqueous electrolytes is hindered by the concurrent H₂ evolution reaction (HER), which takes place at similar potentials. While the influence of cations on this process has been extensively studied, the influence of anions remains largely unexplored. In this work, we study how eCO₂RR selectivity and activity on a gold catalyst are affected by a wide range of inorganic and carboxylate anions. We utilize in situ differential electrochemical mass spectrometry (DEMS) for real-time product monitoring coupled with molecular dynamics (MD) simulations. We show that anions significantly impact eCO

SUBMITTER: Yoo JM 

PROVIDER: S-EPMC11583205 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature