▎ 摘　　要

NOVELTY - Method for preparing graphene catalyst supported by metal particles involves (i) placing the carbon nanotubes in water, ultrasonically treating, adding platinum dioxide under stirring, and heating at 200-250 degrees C to obtain product (A), (ii) dissolving diphenylamine in water, adding bromobenzene and copper powder, heating at 200-250 degrees C, filtering and drying to obtain product (B), (iii) laying the graphene on the bottom plate flatly and placing in a quartz tube, passing the bromine gas and protective gas into the quartz tube, and performing UV irradiation to obtain brominated graphene film, (iv) dissolving the brominated graphene film in acetic acid, adjusting the pH to 8-10, adding product (B), uniformly stirring, filtering and drying to obtain product (C) and (v) hot-pressing product (A) and product (C) to obtain the graphene catalyst supported by the metal particles. USE - Method for preparing graphene catalyst supported by metal particles. ADVANTAGE - The method increases the contact area between the catalyst and the two reaction materials and the thermal stability of the catalyst, enhances the activity of platinum dioxide and improves the life and effect of the catalyst.