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Intermediate Temperature Proton Electrolytes for Polymer Fuel Cells

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3 Author(s)
Je-Deok Kim ; National Institute for Materials Science (NIMS), Tsukuba, Ibaraki, 305-0044, Japan, ; Toshiyuki Mori ; Itaru Honma

Flexible and temperature tolerant organic-inorganic nano-hybrid membranes using metal oxides and organic monomers have been synthesized by sol-gel processes. The membranes showed enhanced thermal stability up to 300degC due to the presence of cross-linkable inorganic nano-phase in the hybrid macromolecular matrix. The membrane becomes proton conducting polymer electrolytes when doped with 12-phosphotungstic or phosphoric acids. The proton conducting properties of the hybrid membranes were measured in the temperature range from room temperature to 160degC under saturated humidity conditions. The modified organic-inorganic hybrid membranes could be applied to temperature tolerant proton conducting PEFCs.

Published in:

Polytronic 2007 - 6th International Conference on Polymers and Adhesives in Microelectronics and Photonics

Date of Conference:

Jan. 16 2007-Yearly 18 2007