Belonging to the technical field of energy catalytic conversion, the invention relates to a Pt / C-N composite electrocatalytic material with efficient
hydrogen evolution performance and a preparation method thereof. The Pt / C-N composite electrocatalytic material is formed by anchoring Pt
metal nanoparticles on the surface of a
nitrogen-doped
biomass carbon material in situ, the particle size of Ptmetal nanoparticles in the Pt / C-N composite electrocatalytic material is about 1nm-10nm, an exposed
crystal face is a {111} active
crystal face, and the loading capacity is 3-25wt%. In the Pt / C-N composite electrocatalytic material provided by the invention, N atoms are doped in situ in the
biomass carbon material, Pt
metal nanoparticles are uniformly loaded on the
biomass carbon material, the loading capacity controllable,
crystal grain size is adjustable, the Pt
metal nanoparticles have excellent electrocatalytic
hydrogen evolution activity, and the
biomass carbon material and the Pt
metal nanoparticles are tightly combined, the stability of the electrocatalytic material in catalytic reaction is substantially improved, and the Pt / C-N composite electrocatalytic material has wide application prospects in the fields of electro-
catalysis,
electrochemistry, energy, environment,
chemical industry and the like.