Operando identification of the oxide path mechanism with different dual-active sites for acidic water oxidation.

ABSTRACT: The microscopic reaction pathway plays a crucial role in determining the electrochemical performance. However, artificially manipulating the reaction pathway still faces considerable challenges. In this study, we focus on the classical acidic water oxidation based on RuO₂ catalysts, which currently face the issues of low activity and poor stability. As a proof-of-concept, we propose a strategy to create local structural symmetry but oxidation-state asymmetric Mn^4-δ-O-Ru^4+δ active sites by introducing Mn atoms into RuO₂ host, thereby switching the reaction pathway from traditional adsorbate evolution mechanism to oxide path mechanism. Through advanced operando synchrotron spectroscopies and density functional theory calculations, we demonstrate th

SUBMITTER: Ji Q 

PROVIDER: S-EPMC11405856 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature