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电化学(中英文) ›› 2015, Vol. 21 ›› Issue (5): 441-448.  doi: 10.13208/j.electrochem.150745

• 电化学储能应用及产业化近期研究专辑 (厦门大学 赵金保教授主编) • 上一篇    下一篇

高温质子交换膜燃料电池用聚苯并咪唑/聚乙烯基苄基交联膜的制备与性能研究

郝金凯1,2,姜永燚1,2,王 禛1,2,李晓锦1,邵志刚1*,衣宝廉1   

  1. 1. 中科院大连化学物理研究所,辽宁 大连 116023;2. 中国科学院大学,北京 100039
  • 出版日期:2015-10-28 发布日期:2015-10-28
  • 通讯作者: 邵志刚 E-mail: zhgshao@dicp.ac.cn
  • 基金资助:

    国家自然科学基金项目(No. 21436003,No. 61433013)、国家高技术研究发展计划(No. 2013AA110201)

Preparations and Properties of Polybenzimidazole/PolyVinylbenzyl Crosslinked Composite Membranes for High Temperature Proton Exchange Membrane Fuel Cells

Jin-kai 1,2, JIANG Yong-yi 1,2, WANG-Zhen 1,2, LI Xiao-jin1, SHAO Zhi-gang1*, YI Bao-lian1   

  1. 1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China; 2. University of Chinese Academy of Sciences, Beijing 100039, China
  • Published:2015-10-28 Online:2015-10-28
  • Contact: SHAO Zhi-gang E-mail: zhgshao@dicp.ac.cn

摘要:

为提高聚苯并咪唑(PBI)膜的抗氧化性能,以乙烯苄基氯(PVBC)作为PBI的大分子交联剂,并利用1H-1,2,4-三氮唑取代交联剂中的不稳定端基Cl,制备了交联型高温质子交换膜,考察了交联剂用量对膜的电化学性质的影响. 研究表明,膜中的交联结构有效提高了膜的抗氧化性能,并兼具优异的电导率及力学性能. 采用无增湿H2和O2对膜电极性能进行了测试,150 oC下电池最大功率密度达到0.82 W•cm-2.

关键词: 高温质子交换膜, 聚苯并咪唑, 交联, 聚乙烯基苄基

Abstract:

In order to increase the chemical stability of polybenzimidazole (PBI) membrane, a highly stable polymer, poly vinylbenzyl chloride (PVBC), was chosen as the macromolecular crosslinker, and 1H-1,2,4-triazol was adopted to prepare the crosslinked PBI-based membranes. The influence of the PVBC amount on membrane characteristic was investigated in detail. The results indicated that the crosslinked structure of the membrane effectively improved the chemical stability, and at the same time, the membrane presented good mechanical property and proton conductivity. The fuel cell performance for the membrane was tested with hydrogen and oxygen single cell without humidification at 150 oC, and the maximum power density reached 0.82 W?cm-2.

Key words: high temperature proton exchange membrane, polybenzimidazole, crosslink, polyvinylbenzyl chloride

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