FeSe₂-BiSe₂-CoSe₂ Ternary Heterojunction for Efficient Hydrogen Evolution Reaction Under pH-Universal.

ABSTRACT: The construction of heterostructures has been recognized as an effective strategy for enhancing material activity and stability. Herein, a ternary heterojunction FeSe₂-BiSe₂-CoSe₂ was synthesized via a hydrothermal selenidation reaction. The significant electronegativity difference between Bi and Fe/Co triggers charge transfer within the FeSe₂-BiSe₂-CoSe₂ lattice. Furthermore, the abundant pore structure of FeSe₂-BiSe₂-CoSe₂ provides efficient pathways for electron diffusion, significantly enhancing the HER catalytic kinetics. Results demonstrate that FeSe₂-BiSe₂-CoSe₂ exhibits outstanding HER activity in both acidic and alkaline media. In 0.5 M H₂S

SUBMITTER: Guo L 

PROVIDER: S-EPMC12843173 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature