▎ 摘　　要

NOVELTY - The preparation method of honeycomb graphene/tungsten carbide/platinum composite electrocatalyst involves (a) dispersing spherical template, tungsten source, and graphene oxide uniformly in water, drying to obtain a thick paste, heating, reacting under an inert gas, milling, and sieving to obtain honeycomb graphene/tungsten carbide composite, crushing, (b) dissolving platinum precursor and surfactant in ethylene glycol and glycerin mixture, adding honeycomb graphene/tungsten carbide composite particle, reflux heat-treating, filtering, and drying. USE - Preparation of honeycomb graphene/tungsten carbide/platinum composite electrocatalyst (claimed). ADVANTAGE - The method enables the preparation of honeycomb graphene/tungsten carbide/platinum composite electrocatalyst with high specific surface area, enhanced conductivity and stability, and low platinum content. DETAILED DESCRIPTION - The preparation method of honeycomb graphene/tungsten carbide/platinum composite electrocatalyst involves (a) dispersing spherical template, tungsten source, and graphene oxide uniformly in water, drying to obtain a thick paste, heating at 800-900 degrees C at a rate of 1-10 degrees C/minute, reacting under an inert gas, milling, and sieving to obtain honeycomb graphene/tungsten carbide composite, crushing the honeycomb graphene/tungsten carbide composite to particle size of 10-30 mu m, (b) dissolving platinum precursor and surfactant in ethylene glycol and glycerin mixture, adding honeycomb graphene/tungsten carbide composite particle, reflux heat-treating, filtering, and drying. The diameter of the spherical template is 0.5-10 mu m. The spherical template is polystyrene, and/or polymethyl methacrylate. The tungsten source is ammonium tungstate, ammonium metatungstate, and/or ammonium paratungstate. The weight ratio of graphene oxide, spherical template, and tungsten source is 1: 2-8:0.1-0.6. An INDEPENDENT CLAIM is included for honeycomb graphene/tungsten carbide/platinum composite electrocatalyst.