能源化学(英文) ›› 2015, Vol. 21 ›› Issue (2): 199-206.DOI: 10.1016/S2095-4956(15)60301-1

• ARTICLES • 上一篇    下一篇

Development of proton-conducting membrane based on incorporating a proton conductor 1,2,4-triazolium methanesulfonate into the Nafion membrane

Jinkai Haoa,b, Xiaojin Lia, Shuchun Yua,b, Yongyi Jianga,b, Jiangshui Luoc,d, Zhigang Shaoa, Baolian Yia   

  1. a. Fuel Cell System and Engineering Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b. University of Chinese Academy of Sciences, Beijing 100039, China;
    c. Department of Materials Engineering, KU Leuven, Leuven 3001, Belgium;
    d. Centre for Surface Chemistry and Catalysis, KU Leuven, Leuven 3001, Belgium
  • 收稿日期:2014-09-28 修回日期:2014-11-03 出版日期:2015-03-23 发布日期:2015-03-23
  • 通讯作者: Xiaojin Li, Zhigang Shao
  • 基金资助:

    This work was financially supported by the National Basic Research Program of China (973 Program, Grant 2012CB215504) and the National Natural Science Foundation of China (21203191 and 21306190).

Development of proton-conducting membrane based on incorporating a proton conductor 1,2,4-triazolium methanesulfonate into the Nafion membrane

Jinkai Haoa,b, Xiaojin Lia, Shuchun Yua,b, Yongyi Jianga,b, Jiangshui Luoc,d, Zhigang Shaoa, Baolian Yia   

  1. a. Fuel Cell System and Engineering Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China;
    b. University of Chinese Academy of Sciences, Beijing 100039, China;
    c. Department of Materials Engineering, KU Leuven, Leuven 3001, Belgium;
    d. Centre for Surface Chemistry and Catalysis, KU Leuven, Leuven 3001, Belgium
  • Received:2014-09-28 Revised:2014-11-03 Online:2015-03-23 Published:2015-03-23
  • Contact: Xiaojin Li, Zhigang Shao
  • Supported by:

    This work was financially supported by the National Basic Research Program of China (973 Program, Grant 2012CB215504) and the National Natural Science Foundation of China (21203191 and 21306190).

摘要: In this paper, 1,2,4-triazolium methanesulfonate (C2H4N3+CH3SO3-, [Tri][MS]), an ionic conductor, was successfully synthesized. It exhibited high ionic conductivity of 18.60 mS·cm-1 at 140℃ and reached up to 36.51 mS·cm-1 at 190℃. [Tri][MS] was first applied to modify Nafion membrane to fabricate [Tri][MS]/Nafion membrane by impregnation method at 150℃. The prepared composite membrane showed high thermal stability with decomposed temperature above 200℃ in air atmosphere. In addition, the membrane indicated good ionic conductivity with 3.67 mS·cm-1 at 140℃ and reached up to 13.23 mS·cm-1 at 180℃. The structure of the [Tri][MS] and the composite membrane were characterized by FTIR and the compatibility of [Tri][MS] and Pt/C catalyst was studied by a cyclic voltammetry (CV) method. Besides, the [Tri][MS]/Nafion membrane (thickness of 65 μm) was evaluated with single fuel cell at high temperature and without humidification. The highest power density of [Tri][MS]/Nafion membrane was 3.20 mW·cm-2 at 140℃ and 4.90 mW·cm-2 at 150℃, which was much higher than that of Nafion membrane.

关键词: high temperature PEMFC, membranes, triazole, Nafion, ionic conductor

Abstract: In this paper, 1,2,4-triazolium methanesulfonate (C2H4N3+CH3SO3-, [Tri][MS]), an ionic conductor, was successfully synthesized. It exhibited high ionic conductivity of 18.60 mS·cm-1 at 140℃ and reached up to 36.51 mS·cm-1 at 190℃. [Tri][MS] was first applied to modify Nafion membrane to fabricate [Tri][MS]/Nafion membrane by impregnation method at 150℃. The prepared composite membrane showed high thermal stability with decomposed temperature above 200℃ in air atmosphere. In addition, the membrane indicated good ionic conductivity with 3.67 mS·cm-1 at 140℃ and reached up to 13.23 mS·cm-1 at 180℃. The structure of the [Tri][MS] and the composite membrane were characterized by FTIR and the compatibility of [Tri][MS] and Pt/C catalyst was studied by a cyclic voltammetry (CV) method. Besides, the [Tri][MS]/Nafion membrane (thickness of 65 μm) was evaluated with single fuel cell at high temperature and without humidification. The highest power density of [Tri][MS]/Nafion membrane was 3.20 mW·cm-2 at 140℃ and 4.90 mW·cm-2 at 150℃, which was much higher than that of Nafion membrane.

Key words: high temperature PEMFC, membranes, triazole, Nafion, ionic conductor