Modulating the Electronic Structure of Cobalt‐Vanadium Bimetal Catalysts for High‐Stable Anion Exchange Membrane Water Electrolyzer

Abstract Modulating the electronic structure of catalysts to effectively couple the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is essential for developing high‐efficiency anion exchange membrane water electrolyzer (AEMWE). Herein, a coral‐like nanoarray composed of nanosheets through the synergistic layering effect of cobalt and the 1D guiding of vanadium is synthesized, which promotes extensive contact between the active sites and electrolyte. The HER and OER activities can be enhanced by modulating the electronic structure through nitridation and phosphorization, respectively, enhancing the strength of metal‐H bond to optimize hydrogen adsorption and facilitating the proton…

• NN
  National Natural Science Foundation of China

  Awards: U20A20250, 22179034
• NS
  Natural Science Foundation of Heilongjiang Province

  Award: ZD2023B002
• NK
  National Key Research and Development Program of China

  Award: 2023YFA1507204