▎ 摘　　要

NOVELTY - Graphene oxide solution obtained by dispersing graphite oxide in water, is dripped into reverse micelle system comprising surfactant, cosurfactant, oil phase and aqueous solution of chloroplatinic acid, then, reducing agent is dripped under heating in water bath for carrying out reduction reaction, demulsifier is dripped into obtained emulsion of platinum-ruthenium nanoalloy and graphene, platinum-ruthenium nanoalloy is supported on graphene carrier, obtained platinum-supported graphene is filtered, cleaned and dried, to obtain platinum-ruthenium nanoalloy/graphene catalyst. USE - Preparation of platinum-ruthenium nanoalloy/graphene catalyst used for proton exchange membrane fuel cell (all claimed). ADVANTAGE - The method provides platinum-ruthenium nanoalloy/graphene catalyst having improved stability and uniformly distributed nanoparticles. The graphene in the catalyst has two-dimensional ductility. DETAILED DESCRIPTION - Graphite powder is oxidized, to obtain graphite oxide, based on Hummers method. Obtained graphite oxide is added into water and dispersed under ultrasound, to obtain graphene oxide solution having uniformly distributed single layer. A reverse micelle system comprising surfactant, cosurfactant, oil phase and aqueous solution of chloroplatinic acid is prepared at room temperature. The graphene oxide solution is dripped into the reverse micelle system, and then, reducing agent is dripped under heating in a water bath for carrying out reduction reaction, to obtain emulsion of platinum-ruthenium nanoalloy and graphene. Demulsifier is dripped into the emulsion, and platinum-ruthenium nanoalloy is supported on graphene carrier. Obtained platinum-supported graphene is filtered, cleaned and dried, to obtain platinum-ruthenium nanoalloy/graphene catalyst.