Lattice Strain Engineering of Ni 2 P Enables Efficient Catalytic Hydrazine Oxidation‐Assisted Hydrogen Production

Abstract Hydrazine‐assisted water electrolysis provides new opportunities to enable energy‐saving hydrogen production while solving the issue of hydrazine pollution. Here, the synthesis of compressively strained Ni 2 P as a bifunctional electrocatalyst for boosting both the anodic hydrazine oxidation reaction (HzOR) and cathodic hydrogen evolution reaction (HER) is reported. Different from a multistep synthetic method that induces lattice strain by creating core–shell structures, a facile strategy is developed to tune the strain of Ni 2 P via dual‐cation co‐doping. The obtained Ni 2 P with a compressive strain of −3.62% exhibits significantly enhanced activity for both the HzOR and HER than counterparts with…

• NN
  National Natural Science Foundation of China

  Awards: 22202134, U21A20312, 21975162
• SU
  Shenzhen University
• BA
  Basic and Applied Basic Research Foundation of Guangdong Province

  Award: 2022B1515120084