title: Sulfur and nitrogen co-doped, few-layered graphene oxide as a highly efficient electrocatalyst for the oxygen-reduction reaction.
abstract: S and N co-doped, few-layered graphene oxide is synthesized by using pyrimidine and thiophene as precursors for the application of the oxygen reduction reaction (ORR). The dual-doped catalyst with pyrrolic/graphitic N-dominant structures exhibits competitive catalytic activity (10.0 mA cm(-2) kinetic-limiting current density at -0.25 V) that is superior to that for mono N-doped carbon nanomaterials. This is because of a synergetic effect of N and S co-doping. Furthermore, the dual-doped catalyst also shows an efficient four-electron-dominant ORR process, which has excellent methanol tolerance and improved durability in comparison to commercial Pt/C catalysts.
authors: State Key Lab of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian 50002, PR China.
authors: Jiaoxing
authors: J
authors: Xu
authors: Guofa
authors: G
authors: Dong
authors: Chuanhong
authors: C
authors: Jin
authors: Meihua
authors: M
authors: Huang
authors: Lunhui
authors: L
authors: Guan
mesh_terms: D002384:Catalysis; D004563:Electrochemistry; D006108:Graphite / Q000737:chemistry*; D007700:Kinetics; D008958:Models, Molecular; D008968:Molecular Conformation; D009584:Nitrogen / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D013455:Sulfur / Q000737:chemistry*
chemical_list: D010087:Oxides; D013455:Sulfur; D006108:Graphite; D009584:Nitrogen; D010100:Oxygen