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    The use of nitrogen-doped graphene supporting Pt nanoparticles as a catalyst for methanolelectrocatalytic oxidation

    Access Status
    Fulltext not available
    Authors
    Xiong, B.
    Zhou, Y.
    Zhao, Y.
    Wang, J.
    Chen, X.
    O’Hayre, R.
    Shao, Zongping
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Xiong, B. and Zhou, Y. and Zhao, Y. and Wang, J. and Chen, X. and O’Hayre, R. and Shao, Z. 2013. The use of nitrogen-doped graphene supporting Pt nanoparticles as a catalyst for methanolelectrocatalytic oxidation. Carbon. 52: pp. 181-192.
    Source Title
    Carbon
    ISSN
    00086223
    URI
    http://hdl.handle.net/20.500.11937/21059
    Collection
    • Curtin Research Publications
    Abstract

    Nitrogen-doped graphene (N-G) was prepared by thermal annealing of graphene oxide in ammonia at different temperatures. The resultant N-G was used as a conductive support for Pt nanoparticles (Pt/N-G) and the electrocatalytic activity of the Pt/N-G catalysts towards methanol oxidation was examined. To investigate the microstructure and morphology of the synthesized catalysts, X-ray diffraction, scanning and transmission electron microscopy and X-ray photoelectron spectroscopy were used. The catalytic activity of the catalysts towards the oxidation of methanol was evaluated by cyclic voltammetry. Compared to a control catalyst of Pt loaded on undoped graphene, the Pt/N-G materials show higher electrochemical activity towards methanol oxidation. The excellent electrochemical performance of Pt/N-G is mainly attributed to the nitrogen doping and the uniform distribution of Pt particles on the doped graphene support. These results indicate that N-dopedgraphene has great potential as a high-performance catalyst support for fuel cell electrocatalysis.

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