Preparation of Fuel Cell Membranes by Photografting in Vapor and Liquid Phases

Preparation of Fuel Cell Membranes by Photografting in Vapor and Liquid Phases

UV radiation-induced photografting of styrene into poly(tetrafluoroethylene-co-ethylene) (ETFE) films for the preparation of fuel cell membranes was carried out. The proton conductivity in the thickness direction of membranes prepared by the vapor- and liquid-phase photografting can reach as high as...

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Veröffentlicht in:Electrochemical and solid-state letters 2006, Vol.9 (5), p.G184-G186
Hauptverfasser: Chen, Jinhua, Asano, Masaharu, Maekawa, Yasunari, Sakamura, Takahiro, Kubota, Hitoshi, Yoshida, Masaru
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Sprache:eng
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Zusammenfassung:UV radiation-induced photografting of styrene into poly(tetrafluoroethylene-co-ethylene) (ETFE) films for the preparation of fuel cell membranes was carried out. The proton conductivity in the thickness direction of membranes prepared by the vapor- and liquid-phase photografting can reach as high as 0.065 and 0.087S/cm, respectively. The higher conductivity in the liquid-phase grafting is close to the homogeneity of graft chain distribution in the membrane.
ISSN:1099-0062
DOI:10.1149/1.2181295