Dual interfacial engineering of a Chevrel phase electrode material for stable hydrogen evolution at 2500 mA cm^-2.

ABSTRACT: Constructing stable electrodes which function over long timescales at large current density is essential for the industrial realization and implementation of water electrolysis. However, rapid gas bubble detachment at large current density usually results in peeling-off of electrocatalysts and performance degradation, especially for long term operations. Here we construct a mechanically-stable, all-metal, and highly active CuMo₆S₈/Cu electrode by in-situ reaction between MoS₂ and Cu. The Chevrel phase electrode exhibits strong binding at the electrocatalyst-support interface with weak adhesion at electrocatalyst-bubble interface, in addition to fast hydrogen evolution and charge transfer kinetics. These features facilitate the achievement of large current d

SUBMITTER: Liu H 

PROVIDER: S-EPMC9605970 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature