One-pot solvothermal synthesis of doped graphene with the designed nitrogen type used as a Pt support for fuel cells

Nanoflower-like, nitrogen-doped graphene (NG) with pure sp(2) hybridized carbon and designed nitrogen types was synthesized by a low temperature solvothermal process. HRTEM results indicated that the product consists of many NG sheets with about 6-10 graphitic layers. Electrochemical test showed that NG has a much higher durability as a Pt support for fuel cells than commercial carbon black (Vulcan XC-72). The possible reasons have been analyzed based on the physical and chemical characterization. (C) 2012 Elsevier B.V. All rights reserved.