▎ 摘　　要

NOVELTY - A magnetic graphene-based platinum-nickel alloy bimetallic catalyst comprises graphene as carrier, platinum-nickel alloy bimetallic nanoparticles containing magnetic nickel metal as active site and having particle size of 10-20 nm loaded on carrier. The catalyst has saturation magnetization at 15-35 degrees C of 8-13 emu/g. The catalyst comprises 75-85 wt.% graphene, 1.5-3.6 wt.%, platinum metal and 12.8-22.5 wt.% nickel metal with respect to 100 wt.% all components. USE - Magnetic graphene-based platinum-nickel alloy bimetallic catalyst (claimed). ADVANTAGE - The magnetic graphene-based platinum-nickel alloy bimetallic catalyst can be completely separated from the reaction system by simple and efficient method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of magnetic graphene-based platinum-nickel alloy bimetallic catalyst.