CIESC Journal ›› 2015, Vol. 66 ›› Issue (S2): 445-449.DOI: 10.11949/j.issn.0438-1157.20150633

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Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane

FEI Zhejun1, JUNG Minsuk2, ZHANG Xuefei1, WANG Shubo1, XIE Xiaofeng1, YUN Sukhwan2, HUANG Haiyan3   

  1. 1. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China;
    2. Department of Chemical and Biological Engineering, Illinois Institute of Technology, Chicago 60616, IL, USA;
    3. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China
  • Received:2015-05-21 Revised:2015-05-29 Online:2015-08-31 Published:2015-08-31
  • Supported by:

    supported by the National High Technology Research and Development Program of China(2012AA053401).

含氟聚芴醚二唑质子交换膜的性能

费哲君1, JUNG Minsuk2, 张雪飞1, 王树博1, 谢晓峰1, YUN Sukhwan2, 黄海燕3   

  1. 1. 清华大学核能与新能源技术研究院, 北京 100084;
    2. 伊利诺伊理工大学化学工程学院, 美国伊利诺伊州芝加哥 60616;
    3. 清华大学汽车安全与节能国家重点实验室, 北京 100084
  • 通讯作者: 谢晓峰
  • 基金资助:

    国家高技术研究发展计划项目(2012AA053401)。

Abstract:

A new kind of partially fluorinated poly(fluorenyl ether oxadiazole)membrane was,ten-fluoro-oxadiazole polymer and bisphenol fluorene as monomers,synthesized.Sodium 4-hydroxyben-zenesulfonate was added to attack ortho C-F bond,bringing in the sulfonic acid group,to actualize functionality.The physical and electrochemical properties of membrane had been studied.Moreover,single cell had assembly.The results show that:the membrane had a higher ionic conductivity,stronger mechanical properties and lower methanol permeability.At 30 and 70℃,it reaches 58 mS·cm-1 and 137 mS·cm-1 respectively.Methanol permeability of the membranes were half of the Nafion® 117 membrane.The power density of the single cell reached 85 mW · cm-2.

Key words: preparation, nucleophilic aromatic substitution reaction, fluorene, proton exchange membrane, mechanical properties, fuel cell

摘要:

将十氟二唑和双酚芴作为聚合物单体制备了一种新型的偏氟聚芴醚二唑质子交换膜。通过加入4-羟基磺酸钠进攻十氟二唑邻位的C-F键引入官能基团探究了膜的制备方法。研究了膜的物理、电化学性能并组装了燃料电池单电池。实验结果表明:该膜具有较高的离子传导率、较强的机械性能及低的甲醇渗透率。30℃时,传导率为58 mS·cm-1,70℃,传导率达到了137 mS·cm-1。甲醇渗透率是Nafion® 117膜的1/2,在100℃时,单电池的功率达到85 mW·cm-2

关键词: 制备, 芳香亲核取代, 芴, 质子交换膜, 机械性能, 燃料电池

CLC Number: