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Issue 6, 2014
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Gold nanodendrities on graphene oxide nanosheets for oxygen reduction reaction

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Abstract

Gold nanodendrites (AuNDs) monodispersed on graphene oxide (GO) nanosheets were successfully prepared using a clean synthesis method at room temperature and then applied for advanced oxygen reduction reaction (ORR). Herein, GO was used as the electron donors for reducing AuCl4 instead of any additional reductants and surfactants, leading to AuNDs with excellent monodispersity, uniformity and purity. The as-prepared AuNDs-loaded GO (AuNDs–GO) exhibit high electrocatalytic activity and a dominant four-electron pathway toward ORR. The AuNDs–GO also exhibit superior stability and methanol tolerance to a commercial Pt–C catalyst, making it a promising nanoelectrocatalyst in fuel cells and other electrochemical devices. This simple, straightforward, and general method is of significance for preparing high-performance metal nanocatalysts with a well-controlled morphology on appropriate supporting materials.

Graphical abstract: Gold nanodendrities on graphene oxide nanosheets for oxygen reduction reaction

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Publication details

The article was received on 22 Oct 2013, accepted on 30 Oct 2013 and first published on 31 Oct 2013


Article type: Paper
DOI: 10.1039/C3TA14276K
Citation: J. Mater. Chem. A, 2014,2, 1697-1703
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    Gold nanodendrities on graphene oxide nanosheets for oxygen reduction reaction

    X. Li, X. Li, M. Xu, J. Xu and H. Chen, J. Mater. Chem. A, 2014, 2, 1697
    DOI: 10.1039/C3TA14276K

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