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Preparation of Graphene-supported Co Nanocomposite

LEI Yun,ZHANG Ke,PAN Qun,ZOU Qin,YUAN Ji-zu(School of Resource and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China)  
Graphite oxide is prepared by Hummers method using 150 μm flake graphite as raw materials,and further treated with super-sonic oscillation to get grapheme oxide.After hydrazine hydrate was added,grapheme oxide was reduced to graphene by reflux.Graphene oxide was mixed with CoSO4,and treated with hydrazine hydrate to obtain graphene supporting Co nanoparticles by reflux.
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