Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane

doi:10.11949/j.issn.0438-1157.20150633

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. 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. 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

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:

TQ028.8

FEI Zhejun, JUNG Minsuk, ZHANG Xuefei, WANG Shubo, XIE Xiaofeng, YUN Sukhwan, HUANG Haiyan. Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane[J]. CIESC Journal, 2015, 66(S2): 445-449.

费哲君, JUNG Minsuk, 张雪飞, 王树博, 谢晓峰, YUN Sukhwan, 黄海燕. 含氟聚芴醚二唑质子交换膜的性能[J]. 化工学报, 2015, 66(S2): 445-449.

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Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane

含氟聚芴醚二唑质子交换膜的性能

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