▎ 摘　　要

NOVELTY - Preparation of graphene loaded platinum-copper nanodendritic catalyst involves: adding 50-500 ml deionized water, 10.2-1023 mg copper(II) chloride dihydrate or 15-1498.1 mg copper(II) sulfate pentahydrate and 0-31.7 g ascorbic acid to three-mouth flask, stirring, introducing nitrogen at flow rate of 200 mL/minute for 10-30 minutes, mixing 2-64 mg sodium borohydride and 10-50 g deionized water, adding to flask and reacting for 5-60 minutes; adding 1-15 ml 0.02 mol/L chloroplatinic acid to solution obtained in step (S1), and reacting for 30 seconds to 24 hours to generate dendritic platinum-copper nanoparticle solution; and mixing 10-1000 mg graphene and 30-500 ml ethanol, ultrasonically processing for 0.5-2 hours, mixing with obtained solution for 5-30 minutes, collecting product, filtering, washing with 0.5-1 L deionized water, freezing and drying for 24-72 hours, drying at 40-100degrees Celsius for 12 hours, or naturally drying for 48 hours in air. USE - The method is useful for preparing graphene loaded platinum-copper nanodendritic catalyst used for high-efficiency proton exchange membrane fuel cell. ADVANTAGE - The method ensures high efficiency, is simple and fast in sample purification, safe, and short in synthesis time, and does not use toxic and explosive organic solvents, and does not require heating.