High-Performance Ammonium Cobalt Phosphate Nanosheet Electrocatalyst for Alkaline Saline Water Oxidation.

ABSTRACT: The development of highly efficient electrocatalysts toward the oxygen evolution reaction is imperative for advancing water splitting technology to generate clean hydrogen energy. Herein, a two dimensional (2D) nanosheet ammonium cobalt phosphate hydrate (NH₄CoPO₄·H₂O) catalyst based on the earth-abundant non-noble metal is reported. When used for the challenging alkaline saline water electrolysis, the NH₄CoPO₄·H₂O catalyst with the optimal thickness of 30 nm achieves current densities of 10 and 100 mA cm^-2 at the record low overpotentials of 252 and 268 mV, respectively, while maintaining remarkable stability during the alkaline saline water oxidation at room temperature. X-ray absorption fine spectra reveal that

SUBMITTER: Song Z 

PROVIDER: S-EPMC8292903 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature