Preparation and properties of sulfonated poly(phthalazinone ether sulfone ketone)/zirconium sulfophenylphosphate/PTFE composite membranes
Preparation and properties of sulfonated poly(phthalazinone ether sulfone ketone)/zirconium sulfophenylphosphate/PTFE composite membranes
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DOI：
10.1016/j.ijhydene.2010.12.014
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发表时间：
2011-03-01
影响因子：
7.2
通讯作者：
Yu, Xianjin
中科院分区：
文献类型：
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作者：
Dong, Feilong;Li, Zhongfang;Yu, Xianjin
采用多孔聚四氟乙烯（PTFE）膜作为支撑材料，制备磺化聚酞嗪酮醚砜酮(SPPESK)/磷酸磺苯锆(ZrSPP)/聚四氟乙烯复合膜。采用喷涂法制备膜。采用热重分析（TGA）和扫描电镜（SEM）对膜进行了表征。复合膜具有良好的热稳定性。SEM显微图证实，聚四氟乙烯的孔隙完全被SPPESK和ZrSPP填充。所得到的复合膜具有机械耐用性，在干湿交替环境中尺寸稳定，并且与我们之前报道的无支撑SPPESK/ZrSPP复合膜相比，具有更低的甲醇渗透性。这些膜的吸水性也低于以前的SPPESK/ZrSPP复合膜。PTFE负载的SPPESK (DS 81%)/ZrSPP（10 wt%）复合膜在120℃下的质子电导率高达0.24 S/cm，具有良好的热稳定性、质子电导率和抗甲醇性能，可作为直接甲醇燃料电池（dmfc）的有效替代膜。版权所有(C) 2010，氢能源出版有限责任公司由爱思唯尔有限公司出版。版权所有。
Porous polytetrafluoroethylene (PTFE) membranes were used as support material for sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK)/zirconium sulfophenyl phosphate (ZrSPP)/PTFE composite membranes. The membranes were prepared via a spray painting method. Membranes were characterized by thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). The composite membranes exhibited good thermal stabilities. SEM micrographs confirmed that the pores of the PTFE were filled entirely with SPPESK and ZrSPP. The resulting composite membranes were mechanically durable, dimensionally stable in alternating wet/dry environments, and had lower methanol permeabilities compared with the unsupported SPPESK/ZrSPP composite membranes reported in our previous work. The water uptake of these membranes was also lower than previous SPPESK/ZrSPP composite membranes. The proton conductivity of PTFE supported SPPESK (DS 81%)/ZrSPP(10 wt%) composite membrane was as high as 0.24 S/cm at 120 degrees C. Thus, the composite membranes exhibited good thermal stabilities, proton conductivities, and good methanol resistance, indicating that these composite membranes could serve as effective alternative membranes for direct methanol fuel cells (DMFCs). Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.