title: Direct synthesis of Fe3 C-functionalized graphene by high temperature autoclave pyrolysis for oxygen reduction.
abstract: We present a novel approach to direct fabrication of few-layer graphene sheets with encapsulated Fe3 C nanoparticles from pyrolysis of volatile non-graphitic precursors without any substrate. This one-step autoclave approach is facile and potentially scalable for production. Tested as an electrocatalyst, the graphene-based composite exhibited excellent catalytic activity towards the oxygen reduction reaction in alkaline solution with an onset potential of ca. 1.05 V (vs. the reversible hydrogen electrode) and a half-wave potential of 0.83 V, which is comparable to the commercial Pt/C catalyst.
authors.affiliation: Department of Energy Conversion and Storage, Technical University of Denmark, Kemitorvet 207, 2800, Kgs. Lyngby (Denmark); Laboratory of Advanced Power Sources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022, Changchun (China).
authors.forename: Yang
authors.initials: Y
authors.lastname: Hu
authors.forename: Jens Oluf
authors.initials: JO
authors.lastname: Jensen
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.forename: Yunjie
authors.initials: Y
authors.lastname: Huang
authors.forename: Lars N
authors.initials: LN
authors.lastname: Cleemann
authors.forename: Wei
authors.initials: W
authors.lastname: Xing
authors.forename: Niels J
authors.initials: NJ
authors.lastname: Bjerrum
authors.forename: Qingfeng
authors.initials: Q
authors.lastname: Li
mesh_terms: D017554:Carbon Compounds, Inorganic / Q000737:chemistry*; D060326:Chemistry Techniques, Synthetic; D004563:Electrochemistry; D006108:Graphite / Q000737:chemistry*; D006358:Hot Temperature; D058085:Iron Compounds / Q000737:chemistry*
chemical_list: D017554:Carbon Compounds, Inorganic; D058085:Iron Compounds; C541825:iron carbide; D006108:Graphite
keywords: fuel cell; graphene; iron carbide; nanoparticle; oxygen reduction