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Issue 35, 2013
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N-heterocycles tethered graphene as efficient metal-free catalysts for an oxygen reduction reaction in fuel cells

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Abstract

Heteroatom-doped graphene serves as a metal-free cathode catalyst in fuel cells, and has attracted great attention because of its low-cost, abundance, high activity, and robust stability. However, the heteroatom configuration in the graphene sheet is difficult to control, which prevents an understanding of the catalytic mechanisms and synthesis strategies. Herein, we introduce an organic condensation method to selectively functionalize graphene edges and defects with heterocycles under mild conditions. This method is an efficient way to dope graphene with structure-defined heteroatom clusters. By this method, the as-prepared heteroatom-doped graphene shows promising performance for oxygen reduction reaction in alkaline conditions with a preferred four-electron transfer process, demonstrating that graphene containing heteroatom clusters have high catalytic activity as metal-free cathodes.

Graphical abstract: N-heterocycles tethered graphene as efficient metal-free catalysts for an oxygen reduction reaction in fuel cells

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Publication details

The article was received on 07 May 2013, accepted on 14 Jun 2013 and first published on 17 Jun 2013


Article type: Paper
DOI: 10.1039/C3TA11794D
Citation: J. Mater. Chem. A, 2013,1, 10166-10172
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    N-heterocycles tethered graphene as efficient metal-free catalysts for an oxygen reduction reaction in fuel cells

    Z. Zuo, W. Li and A. Manthiram, J. Mater. Chem. A, 2013, 1, 10166
    DOI: 10.1039/C3TA11794D

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