期刊
JOURNAL OF POWER SOURCES
卷 327, 期 -, 页码 265-272出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.07.060
关键词
Mono-sheet bipolar membrane; Bipolar membrane fuel cell; Radiation grafting; ETFE
资金
- National Natural Science Foundation of China [21376195, 20876129, 21321062]
- High-Tech Research and Development Program of China [2008AA05Z107]
- National Found for Fostering Talents of Basic Science [J1310024]
A new method for the preparation of the mono-sheet bipolar membrane applied to fuel cells was developed based on the pre-irradiation grafting technology. A series of bipolar membranes were successfully prepared by simultaneously grafting of styrene onto one side of the poly(ethylene-co-tetrafluoroethylene) base film and 1-vinylimidazole onto the opposite side, followed by the sulfonation and alkylation, respectively. The chemical structures and microstructures of the prepared membranes were investigated by ATR-FTIR and SEM-EDS. The TGA measurements demonstrated the prepared bipolar membranes have reasonable thermal stability. The ion exchange capacity, water uptake and ionic conductivity of the membranes were also characterized. The H-2/O-2 single fuel cells using these membranes were evaluated and revealed a maximum power density of 107 mW cm(-2) at 35 degrees C with unhumidified hydrogen and oxygen. The preliminary performances suggested the great prospect of these membranes in application of bipolar membrane fuel cells. (C) 2016 Elsevier B.V. All rights reserved.
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