▎ 摘　　要

A facile in situ plasma synthesis of graphene-based Pt nanopartictes is presented. For comparison, chemical reduction was also used. Ar plasma was capable of reducing Pt precursors into well dispersed Pt nano-particles on graphene. The electrocatalytic activities of the two as-prepared catalysts were tested, and then they were used as anodes for methanol electro-oxidation in a DMFC. The catalyst prepared by the plasma approach showed higher catalytic activity for methanol electro-oxidation. The plasma technique is also suitable for the fabrication of other functional carbon based metal composites for their applications in multidisciplinary areas.