title: Graphite Carbon-Supported Mo2C Nanocomposites by a Single-Step Solid State Reaction for Electrochemical Oxygen Reduction.
abstract: Novel graphite-molybdenum carbide nanocomposites (G-Mo2C) are synthesized by a typical solid state reaction with melamine and MoO3 as precursors under inert atmosphere. The characterization results indicate that G-Mo2C composites are composed of high crystallization and purity of Mo2C and few layers of graphite carbon. Mo2C nanoparticles with sizes ranging from 5 to 50 nm are uniformly supported by surrounding graphite layers. It is believed that Mo atom resulting from the reduction of MoO3 is beneficial to the immobilization of graphite carbon. Moreover, the electrocatalytic performances of G-Mo2C for ORR in alkaline medium are investigated by cyclic voltammetry (CV), rotating disk electrode (RDE) and chronoamperometry test with 3M methanol. The results show that G-Mo2C has a considerable catalytic activity and superior methanol tolerance performance for the oxygen reduction reaction (ORR) benefiting from the chemical interaction between the carbide nanoparticles and graphite carbon.
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: K
authors.initials: K
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: K
authors.initials: K
authors.lastname: Bi
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: C
authors.initials: C
authors.lastname: Liang
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: S
authors.initials: S
authors.lastname: Lin
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China.
authors.forename: W J
authors.initials: WJ
authors.lastname: Wang
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, China.
authors.forename: T Z
authors.initials: TZ
authors.lastname: Yang
authors.affiliation: School of Materials Science and Engineering, Central South University, Changsha, Hunan, China.
authors.forename: J
authors.initials: J
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: R
authors.initials: R
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: D Y
authors.initials: DY
authors.lastname: Fan
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: Y G
authors.initials: YG
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Information Photonics and Optical Communications & School of Science, Beijing University of Posts and Telecommunications, Beijing, China.
authors.forename: M
authors.initials: M
authors.lastname: Lei
mesh_terms: D002244:Carbon / Q000737:chemistry* / Q000378:metabolism; D002384:Catalysis; D055664:Electrochemical Techniques; D004566:Electrodes; D006108:Graphite / Q000737:chemistry* / Q000378:metabolism; D000432:Methanol / Q000737:chemistry; D008982:Molybdenum / Q000737:chemistry* / Q000378:metabolism; D053761:Nanocomposites / Q000737:chemistry*; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry* / Q000378:metabolism*; D013499:Surface Properties
chemical_list: C574181:molybdenum carbide; D002244:Carbon; D006108:Graphite; D008982:Molybdenum; D010100:Oxygen; D000432:Methanol