Interface Engineering of Mo‐doped Ni 2 P/Fe x P‐V Multiheterostructure for Efficient Dual‐pH Hydrogen Evolution and Overall Water Splitting

Abstract Developing highly effective transition metal‐based bifunctional electrocatalysts remains a tremendously challenging task for large‐scale overall water splitting. Herein, a multiheterostructured Mo‐doped Ni 2 P/Fe x P electrocatalyst on NiFe foam with P vacancy (denoted as Mo─Ni 2 P/Fe x P‐V/NFF) is developed to serve as an efficient dual‐pH electrocatalyst. Due to the synergistic effect of multiple strategies (heteroatom doping, heterointerface, and P vacancy), the Mo─Ni 2 P/Fe x P‐V/NFF possesses remarkable hydrogen evolution reaction (HER) catalytic activity in alkaline/acidic and excellent oxygen evolution reaction (OER) in alkaline media, along with encouraging durability. The mechanisms of…

• NN
  National Natural Science Foundation of China

  Awards: 52025013, 11974229
• AB
  Applied Basic Research Project of Shanxi Province, China

  Award: 20210302123327