▎ 摘　　要

NOVELTY - A direct-methanol fuel cell anode compound film catalyst is prepared putting pre-processed glassy carbon electrode substrate in sulfuric acid solution, recycling potential scanning, washing, drying, soaking dry glassy carbon electrode substrate in functional modified graphene solution for 20 minutes to obtain modified glassy carbon electrode substrate, taking out, soaking in 10 mmol/L of polyoxometallate solution for 20 minutes, and alternately soaking in the functional modified graphene solution and polyoxometallate solution for 1-4 times. USE - Method for preparation of direct-methanol fuel cell anode compound film catalyst (claimed). ADVANTAGE - The method introduces functional modified graphene and polyoxometallate which improve electro-catalytic activity and anti-carbon monoxide poison ability of the compound film catalyst. It is simple and low in cost. DETAILED DESCRIPTION - Preparation of direct-methanol fuel cell anode compound film catalyst comprises: (A) taking graphite oxide in de-ionized water, ultrasounding for 30-40 minutes, forming dispersing solution, adding water-soluble polymer, stirring, heating, refluxing, cooling and dripping in hydrazine hydrate, stirring while heating, refluxing, centrifugal separating, and adding water to obtain 0.5-1 mg/mL of functional modified graphene solution; (B) polishing glassy carbon electrode substrate using alpha -aluminum oxide, ultrasonic cleaning for 10 minutes in ethanol solution and distilled water, putting the cleaned glassy carbon electrode substrate in sulfuric acid solution, and controlling potential range; (C) putting the pre-processed glassy carbon electrode substrate in sulfuric acid solution, recycling potential scanning, washing, drying, soaking dry glassy carbon electrode substrate in the prepared functional modified graphene solution for 20 minutes to obtain modified glassy carbon electrode substrate, taking out, soaking in 10 mmol/L of polyoxometallate solution for 20 minutes, and alternately soaking in the functional modified graphene solution and polyoxometallate solution for 1-4 times; and (D) in 3-electrode system, using multi-layer compound film glassy carbon electrode substrate as the working electrode, molybdenum column as counter electrode, and silver/silver chloride as reference electrode, and electrodepositing to obtain zincode compound film catalyst containing platinum nanoparticle.