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HPW/MCM-41 Phosphotungstic Acid/Mesoporous Silica Composites as Novel Proton-Exchange Membranes for Elevated-Temperature Fuel Cells

Authors

  • Shanfu Lu,

    1. School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 (Singapore)
    2. School of Chemistry and the Environment, Beihang University Beijing 100191 (P. R. China)
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  • Deli Wang,

    1. School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 (Singapore)
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  • San Ping Jiang,

    Corresponding author
    1. School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 (Singapore)
    • School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 (Singapore)
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  • Yan Xiang,

    Corresponding author
    1. School of Chemistry and the Environment, Beihang University Beijing 100191 (P. R. China)
    • School of Chemistry and the Environment, Beihang University Beijing 100191 (P. R. China)
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  • Jinlin Lu,

    1. School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 (Singapore)
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  • Jie Zeng

    1. School of Mechanical and Aerospace Engineering Nanyang Technological University Singapore 639798 (Singapore)
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Abstract

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A novel inorganic proton-conducting membrane based on highly ordered MCM-41 mesoporous silica with phosphotungstic acid (HPW) nanoparticles assembled within is successfully fabricated by a vacuum-assisted impregnation method (VIM). The results of HPW impregnation by VIM and a conventional method (CIM) are compared (see figure), and the performance of the membranes in fuel cells is reported.

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