Reconstructed Ir‒O‒Mo species with strong Bronsted acidity for acidic water oxidation.

ABSTRACT: Surface reconstruction generates real active species in electrochemical conditions; rational regulating reconstruction in a targeted manner is the key for constructing highly active catalyst. Herein, we use the high-valence Mo modulated orthorhombic Pr₃Ir_1-xMo_xO₇ as model to activate lattice oxygen and cations, achieving directional and accelerated surface reconstruction to produce self-terminated Ir‒O_bri‒Mo (O_bri represents the bridge oxygen) active species that is highly active for acidic water oxidation. The doped Mo not only contributes to accelerated surface reconstruction due to optimized Ir‒O covalency and more prone dissolution of Pr, but also affords the improved durability resulted from Mo-buffered charge compensat

SUBMITTER: Chen S 

PROVIDER: S-EPMC10338439 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature