Charge Self-Regulation of Metallic Heterostructure Ni₂ P@Co₉ S₈ for Alkaline Water Electrolysis with Ultralow Overpotential at Large Current Density.

ABSTRACT: Designing cost-effective alkaline water-splitting electrocatalysts is essential for large-scale hydrogen production. However, nonprecious catalysts face challenges in achieving high activity and durability at a large current density. An effective strategy for designing high-performance electrocatalysts is regulating the active electronic states near the Fermi-level, which can improve the intrinsic activity and increase the number of active sites. As a proof-of-concept, it proposes a one-step self-assembly approach to fabricate a novel metallic heterostructure based on nickel phosphide and cobalt sulfide (Ni₂ P@Co₉ S₈ ) composite. The charge transfer between active Ni sites of Ni₂ P and Co─Co bonds of Co₉ S₈ efficiently enhan

SUBMITTER: Zhu X 

PROVIDER: S-EPMC10667855 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature