Title :
Intermediate Temperature Proton Electrolytes for Polymer Fuel Cells
Author :
Kim, Je-deok ; Mori, Toshiyuki ; Honma, Itaru
Author_Institution :
Nat. Inst. for Mater. Sci., Tsukuba
fDate :
Jan. 16 2007-Yearly 18 2007
Abstract :
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.
Keywords :
electrolytes; membranes; proton exchange membrane fuel cells; sol-gel processing; thermal stability; PEFC; hybrid macromolecular matrix; intermediate temperature proton electrolytes; metal oxides; organic monomers; organic-inorganic nanohybrid membranes; polymer fuel cells; proton conducting polymer electrolytes; sol-gel processes; temperature tolerant membranes; thermal stability; Biomedical measurements; Biomembranes; Conducting materials; Fuel cells; Organic materials; Polymers; Protons; Temperature distribution; Thermal stability; Zirconium; Flexibility; PEFCs; membrane; organic-inorganic nano-hybrid; proton conductor; thermal stability;
Conference_Titel :
Polymers and Adhesives in Microelectronics and Photonics, 2007. Polytronic 2007. 6th International Conference on
Conference_Location :
Odaiba, Tokyo
Print_ISBN :
978-1-4244-1186-3
Electronic_ISBN :
978-1-4244-1186-3
DOI :
10.1109/POLYTR.2007.4339144
