The invention belongs to the technical field of electrolyzed water catalysts, and discloses a V-doped
nickel phosphorus material as well as a preparation method and application thereof. According to the preparation method, a V-NiZn-LDH
microsphere array is uniformly grown on NF through a hydrothermal method, then a precursor with abundant defects is obtained through a selective
alkaline etching method, and the ferro-
nickel phosphide V-Nivac2P / NF which is anchored on foamed
nickel and has abundant surface defects is successfully prepared. In a 1M KOH solution, the prepared V-Nivac2P / NF self-supporting
electrode shows excellent water
electrolysis oxygen evolution performance and
hydrogen evolution performance. An in-situ Raman spectrum shows that in the OER process, the defect obviously accelerates reconstruction from adjacent nickel atoms to a high-activity NiOOH substance, and the high-activity NiOOH substance becomes a real catalytic activity center. DFT calculation also shows that the introduction of vacancies can improve the
conductivity of the catalyst, and in the step of adsorbing * OOH, V-Nivac2P / NF can effectively reduce the
adsorption energy barrier of * OOH.