articleAdvanced Energy MaterialsApr 4, 2014Closed access

Metal−Organic Framework‐Derived Nitrogen‐Doped Core‐Shell‐Structured Porous Fe/Fe 3 C@C Nanoboxes Supported on Graphene Sheets for Efficient Oxygen Reduction Reactions

YHYang HouTHTaizhong HuangZWZhenhai WenSMShun MaoSCShumao Cui

University of Wisconsin–Milwaukee

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Abstract

A novel core-shell-structured hybrid as an oxygen reduction reaction catalyst, consisting of nitrogen-doped porous Fe/Fe3C@C nanoboxes supported on graphene sheets, is synthesized through simple pyrolysis of graphene oxide-supported iron-based metal−organic frameworks. The hybrid exhibits higher electrocatalytic activity than a commercial Pt/C catalyst, excellent long-term stability, and superior methanol tolerance due to the synergistic effect between N-doped Fe/Fe3C@C and N-doped graphene sheets.

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Topics & keywords

Topics
Keywords
  • Materials science
  • Graphene
  • Oxide
  • Catalysis
  • Pyrolysis
  • Methanol
  • Metal
  • Porosity
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