4.8 Article

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

Journal

ADVANCED MATERIALS
Volume 22, Issue 9, Pages 971-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.200903091

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Funding

  1. Ministry of Education, Singapore [AcRF T208A1216]
  2. National Natural Science Foundation of China [20403002, 20773008]
  3. National High Tech R7D Program [2007AA05Z146]
  4. Beijing Novel Program [2008B12]

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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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