"d-electron interactions" induced CoV₂O₆-Fe-NF for efficient oxygen evolution reaction.

ABSTRACT: The investigation of cost-effective, highly efficient, and environmentally friendly non-noble-metal-based electrocatalysts is imperative for oxygen evolution reactions (OER). Herein, CoV₂O₆ grown on nickel foam (NF) was selected as the fundamental material, and Fe²⁺ is introduced through a simple Fe³⁺ immersion treatment to synthesize CoV₂O₆-Fe-NF. Fe²⁺ is transformed into high oxidation state Fe^(2+δ)+ due to interactions between the 3d electrons of transition metals. In situ Raman spectroscopy analysis reveals the specific process of OER in the presence of Fe^(2+δ)+. Being in a higher oxidation state, Fe^(2+δ)+ provides more active sites, which is benefic

SUBMITTER: Guo Y 

PROVIDER: S-EPMC10280129 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature