Fluoride-Mediated Synthesis of Co(OH)F and Electronic Structure Optimization for Enhanced Water Oxidation Performance.

ABSTRACT: This study deciphers the anionic modulation mechanism of halide ions (F^-/Cl^-) in cobalt-based hydroxides for oxygen evolution reaction (OER). Phase-pure Co(OH)₂, Co(OH)F, and Co₂(OH)₃Cl were fabricated via substrate-independent hydrothermal synthesis to eliminate conductive support interference. Electrocatalytic evaluation on glassy carbon electrodes demonstrates fluoride's superior regulatory capability over chloride. X-ray photoelectron spectroscopy (XPS) analyses revealed that F^- incorporation induces charge redistribution through Co → F electron transfer, optimizing the electronic configuration via ligand effects. F^- incorporation simultaneously guided the anisotropic growth of 1D nanorods and reduced surface

SUBMITTER: Dong Q 

PROVIDER: S-EPMC12430501 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature