Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane

FEI Zhejun; JUNG Minsuk; ZHANG Xuefei; WANG Shubo; XIE Xiaofeng; YUN Sukhwan; HUANG Haiyan

doi:10.11949/j.issn.0438-1157.20150633

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Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane

更新时间：2025-12-10

- Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane
- CIESC Journal Issue S2, Pages: 445-449(2015)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150633
  CLC： Q028.8
- Online First：31 August 2015，
  
  Published：31 August 2015
- 稿件说明：
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FEI Zhejun, JUNG Minsuk, ZHANG Xuefei, et al. Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane[J]. CIESC Journal, 2015, (S2): 445-449.
DOI：

FEI Zhejun, JUNG Minsuk, ZHANG Xuefei, et al. Properties of fluorinated poly fluorene ether oxadiazole proton exchange membrane[J]. CIESC Journal, 2015, (S2): 445-449. DOI： 10.11949/j.issn.0438-1157.20150633.

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。

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.

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