Narrowing the Kinetic Gap Between Alkaline and Acidic Hydrogen Oxidation Reactions Through Intermediate Behaviors Regulated on D-p Hybridized Pd-Based Catalysts.

ABSTRACT: The kinetics of hydrogen oxidation reaction (HOR) decline by orders of magnitude when varying from acidic to alkaline environments. Consequently, narrowing the kinetic gap between alkaline and acidic HOR (acid-base kinetic gap) and identifying the prominent reaction intermediates under varying pH conditions remain significant yet challenging. Herein, through introducing p-block Ga and Sn elements, the HOR behaviors of the constructed d-p hybridized Pd-based catalysts are investigated under different electrolyte pH, particularly in alkaline and acidic conditions. Remarkably, the specific activity of PdGa/C alloy surpasses that of other prepared Pd-based catalysts in both alkaline and acidic electrolytes. Additionally, the PdGa/C alloy exhibits the smallest acid-base kinetic gap among these

SUBMITTER: Su L 

PROVIDER: S-EPMC12752547 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature