Direct Synthesis of Fe3C-Functionalized Graphene by High Temperature Autoclave Pyrolysis for Oxygen Reduction

Yang Hu, Jens Oluf Jensen, Wei Zhang, Yunjie Huang, Lars Nilausen Cleemann, Wei Xing, Niels J. Bjerrum, Qingfeng Li

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We present a novel approach to direct fabrication of few-layer graphene sheets with encapsulated Fe3C 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.
Original languageEnglish
JournalChemSusChem (Print)
Volume7
Issue number8
Pages (from-to)2099-2103
Number of pages5
ISSN1864-5631
DOIs
Publication statusPublished - 2014

Keywords

  • CHEMISTRY,
  • NITROGEN-DOPED GRAPHENE
  • EFFICIENT ELECTROCATALYST
  • FUNCTIONALIZED GRAPHENE
  • LAYER GRAPHENE
  • CATALYSTS
  • CARBON
  • OXIDE
  • SUPERCAPACITORS
  • NANOPARTICLES
  • SULFUR
  • fuel cell
  • graphene
  • iron carbide
  • nanoparticle
  • oxygen reduction

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