SET Proceedings 2978-4387 Caravel Press 10.65582/set.2008.194 2008.194 Performance of DMFC with ETFE membrane manufactured by radiation grafting technology ParkDae Yeob LeeDong Hwa ChoHyun Kug KwonYong Kil HanDo Hung dhhan@ynu.ac.kr School of Chemical Engineering and Technology, Yeungnam University Gyongsan, Republic of Korea 24082008 7 1 978-1-995850-08-5 1404 1410 24 August 2008 © 2008 Copyright WSSET 2008

This study manufactured ETFE (Poly(ethylene-alt-tetrafluoroethylene) membrane for DMFC by means of electron beam radiation technology. The maximum degree of styrene-grafting existed at around 20kGy, giving around 100% degree for five hours of grafting at 45°C and 1.9meq/g of IEC (Nafion 115: 0.9meq/g). Electric power of ETFE membrane in DMFC was slightly lower than Nafion 115 membrane, whereas the MeOH crossover in ETFE membrane could be much more suppressed compared to Nafion 115.

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