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Synthesis of hierarchical hollow tungsten trioxide sphere and its evaluation as an electrocatalyst support for methanol oxidation

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Abstract

Hierarchical hollow tungsten trioxide spheres (HHTTS) were prepared using PbWO4 precursors as sacrificial templates. The HHTTS with diameters of about 2 μm were loosely self-organized from numerous nanoplatelets. Pt nanoparticles with 7 nm were loaded onto the surface of HHTTS using a conventional sodium borohydride reduction method. The electrocatalytic performances for methanol oxidation of Pt/HHTTS were investigated by cyclic voltammetry and chronoamperometry. Due to the large tunnels of hexagonal structure and high porous surface morphology, great enhancement of electrochemical performances is achieved. The Pt/HHTTS catalyst is demonstrated to be a promising anode material for direct methanol fuel cells (DMFC).

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Acknowledgments

The research was financially supported by the Jiangxi Ganpo 555 Project for Excellent Talents, Zhejiang Ministry of Education Foundation (Y201225711) and Postdoctoral Project Fund of Jiangxi University of Science and Technology.

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Authors and Affiliations

  1. Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou, 310032, China

    Xianchao Hu

  2. Metallurgical and Chemical Engineering Institute, Jiangxi University of Science and Technology, Ganzhou, 341000, China

    Yang Zhou, Herui Wen & Hongming Zhong

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  1. Xianchao Hu
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  2. Yang Zhou
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  3. Herui Wen
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  4. Hongming Zhong
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Correspondence to Yang Zhou.

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Hu, X., Zhou, Y., Wen, H. et al. Synthesis of hierarchical hollow tungsten trioxide sphere and its evaluation as an electrocatalyst support for methanol oxidation. J Solid State Electrochem 19, 315–320 (2015). https://doi.org/10.1007/s10008-014-2416-0

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  • DOI: https://doi.org/10.1007/s10008-014-2416-0

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