▎ 摘　　要

NOVELTY - Preparation of electrocatalyst involves dispersing graphene oxide and a monomer in acetic acid-sodium acetate buffer solution, carrying out cyclic voltammetry scan on the mixed liquor of the monomer and graphene oxide to obtain a conducting polymer loaded and reduced graphene oxide composite material modified electrode, carrying out cyclic voltammetry scan by adopting a three-electrode system using the electrode as a working electrode and a thiol solution as an electrolyte, and carrying out constant potential reduction to obtain the electrocatalyst. USE - Preparation of electrocatalyst for direct methanol fuel cell. ADVANTAGE - The electrocatalyst is prepared by simple method, and has high metal particle dispersibility and desired particle size, electroactivity and stability. DETAILED DESCRIPTION - Preparation of electrocatalyst involves dispersing graphene oxide and a monomer in acetic acid-sodium acetate buffer solution to obtain mixed liquor of the monomer and graphene oxide, carrying out cyclic voltammetry scan on the mixed liquor of the monomer and graphene oxide to obtain a conducting polymer loaded and reduced graphene oxide composite material modified electrode, carrying out cyclic voltammetry scan by adopting a three-electrode system using the electrode as a working electrode and a thiol solution as an electrolyte, carrying out constant potential reduction by adopting the three-electrode system using the electrode as working electrode and a metal salt solution as an electrolyte to obtain the electrocatalyst.