| 磷钨酸/磺化聚醚醚酮质子导电复合膜 |
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| 引用本文： | 李磊,许莉,王宇新.磷钨酸/磺化聚醚醚酮质子导电复合膜[J].高等学校化学学报,2004,25(2):388-390. |
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| 作者姓名： | 李磊 许莉 王宇新 |
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| 作者单位： | 天津大学化工学院化学工程研究所, 天津 300072 |
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| 基金项目： | 国家自然科学基金 (批准号 :2 99760 3 3 )，科技部“九七三”计划 (批准号 :G2 0 0 0 0 2 64 )，天津市自然科学基金 (批准号 :0 2 3 60 70 11)资助 |
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| 摘 要： | 直接甲醇燃料电池(Direct methanol fuelcell，DMFC)作为各种用途的可移动动力源具有高效、清洁和燃料储运方便等优点，成为20世纪90年代以来研究与开发的热点。目前，这种电池的研究难点主要集中在催化剂不稳定和质子交换膜透醇上，DMFC膜不但要可传递质子和绝缘电子，还应具有
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| 关 键 词： | 直接甲醇燃料电池 磺化聚醚醚酮 磷钨酸 质子导电性 甲醇透过性 |
| 文章编号： | 0251-0790(2004)02-0388-03 |
| 收稿时间： | 2003-02-08 |
Proton Conducting Composite Membranes from Sulfonated Polyether Ether Ketone and Phosphotungstic Acid |
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| LI Lei,XU Li,WANG Yu-Xin.Proton Conducting Composite Membranes from Sulfonated Polyether Ether Ketone and Phosphotungstic Acid[J].Chemical Research In Chinese Universities,2004,25(2):388-390. |
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| Authors: | LI Lei XU Li WANG Yu-Xin |
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| Affiliation: | Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | A novel inorganic-organic composite membrane based on sulfonated polyether ether ketone(SPEEK) with embedded phosphotungstic acid(PWA) for direct methanol fuel cells(DMFC) was prepared. IR spectra results indicate that PWA was kept in SPEEK matrix as the Keggin structure. From SEM micrograph, it could be found that the solid PWA were well mixed with SPEEK matrix and showed no agglomeration in the membrane. Proton conductivity of the PWA/SPEEK composite membrane is higher than that of pure SPEEK membrane, and is similar or superior to that of Nafion ?115 membrane in the temperature range 80-110 ℃. Methanol permeability of the PWA/SPEEK membrane was considerably smaller than that of Nafion ?115 membrane. Because of its high conductivity and low methanol permeability, the PWA/SPEEK membrane seems to be an excellent candidate for DMFC applications. |
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| Keywords: | Direct methanol fuel cell Sulfonated polyether ether ketone Phosphotungstic acid Proton conductivity Methanol permeability |
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