▎ 摘　　要

NOVELTY - Method for preparing a hollow-structure transition metal nanocatalyst, involves (i) coating a nickel transition metal electron structure by taking the synthetic nickel as a core and regulating the electron structure of the nickel transition metal;, (ii) loading graphene, (iii) etching a part of the elemental nickel by an acid, removing the part of the elemental nickel, and synthesizing the nanocatalyst. USE - The method is useful for preparing hollow-structure transition metal nanocatalyst (claimed), which is useful in the cathode catalysts of proton exchange membrane fuel cells, in the cathode and anode catalysts of fuel cells, and in composite structure nanomaterials, nanotechnology and controlled synthesis. ADVANTAGE - The method does not require pretreatment of the metal precursor, does not require surfactant or protective agent, directly synthesizes the catalyst in the liquid phase, effectively controls the electronic effects to improve the catalytic activity, and adopts simple and controllable preparation process.