Accelerating N₂H_4(ads) formation by frustrated Lewis pairs in an oxyhydroxide for electrocatalytic ammonia oxidation into N₂.

ABSTRACT: Conventional catalysts based on the individual Oswin and Salomon (O-S) or Gerischer and Mauerer (G-M) mechanism cannot achieve direct electrocatalytic ammonia (NH₃) oxidation into nitrogen (N₂) with high activity and selectivity. Herein, a bimetallic nickel-cobalt oxyhydroxide (Ni_0.5-Co_0.5-OOH) with frustrated Lewis pairs was developed through an elaborate analysis of the binding types of NH₃ with the metal-oxide anode, efficiently integrating O-S and G-M mechanisms for converting NH₃ into N₂ with high activity (94%) and selectivity (63%), which is much superior to the anodes in the previous reports. The evidence of batch experiments, in situ characterization, and theoretical calculations confirms that two

SUBMITTER: Yin MY 

PROVIDER: S-EPMC12551762 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature