Deciphering pH Mismatching at the Electrified Electrode–Electrolyte Interface towards Understanding Intrinsic Water Molecule Oxidation Kinetics

Abstract

By integrating operando electrochemical methods with (micro)kinetic modelling, the dynamic local pH effect for the oxygen evolution reaction is clarified. An unconventional reversible hydrogen reference electrode is employed, enabling a clearer interpretation of intrinsic electrochemical kinetics. This approach offers deeper insights into the microscopic electrode processes in the electrified electrode-electrolyte interface with dynamic local pH.