Microwave syntheses of graphene and graphene decorated with metal nanoparticles

We report a simple and rapid method to synthesize pure graphene sheets and those decorated with metal nanoparticles by combining chemical foaming agents, green oxidizers, and microwave radiation. Under microwave radiation, an intercalated foaming agent between graphite oxide layers plays a key role in the rapid and large expansion of the graphene worm along the thickness direction and in the reduction process of the graphite oxide. By adding...