▎ 摘　　要

NOVELTY - Modified graphene platinum catalyst comprises 1,3-propylene diamine-modified graphene, and 20-40 wt.% platinum. USE - Modified graphene platinum catalyst used for direct methanol fuel cell anode (claimed). ADVANTAGE - The catalyst has uniform dispersion, smaller particle size, high electrocatalytic activity and improved long-term cycle stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of modified graphene platinum catalyst comprising preparing 1,3-propylene diamine-modified graphene, dispersing in water, adding platinum catalyst precursor, ultrasonic dispersing, adding sodium borohydride, and ultrasonic dispersing.