Codecoration of Phosphate and Iron for Improving Oxygen Evolution Reaction of Layered Ni(OH) 2 /NiOOH

Hydrogen production through electrochemical water splitting (EWS) presents a viable solution for addressing the fossil energy crisis. However, the commercial viability of this approach is impeded by the sluggish kinetics of the oxygen evolution reaction (OER). It is urgently needed to develop efficient, stable, and cost-effective OER electrocatalysts. Herein, we comprehensively design and investigate a phosphate ion and Fe3+ codecorating Ni(OH)2/NiOOH electrocatalyst (Pi-Fe:NiOH) for OER. This codecoration induces multiple synergistic effects, which include an increase in the interlayer water content for the internal OER, altering the OER mechanism, facilitating proton transport across the layers, and…

• NN
  National Natural Science Foundation of China

  Awards: 21962010, 22362021
• NK
  National Key Research and Development Program of China

  Award: 2018YFB1502004