首页> 外文期刊>Journal of power sources >A new method to prepare high performance perfluorinated sulfonic acid ionomer/porous expanded polytetrafluoroethylene composite membranes based on perfluorinated sulfonyl fluoride polymer solution
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A new method to prepare high performance perfluorinated sulfonic acid ionomer/porous expanded polytetrafluoroethylene composite membranes based on perfluorinated sulfonyl fluoride polymer solution

机译:基于全氟磺酰氟聚合物溶液制备高性能全氟磺酸离聚物/多孔聚四氟乙烯复合膜的新方法

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摘要

Perfluorinated sulfonyl fluoride (PFSF) resin, the precursor of perfluorinated sulfonic acid (PFSA) ionomer is successfully dissolved in perfluorinated solvents, and its hydrophobic nature is utilized to resolve the difficulty of impregnating hydrophilic PFSA solution into hydrophobic porous expanded polytetrafluoroethylene (ePTFE). The composite membrane fabricated through such simple but effective method is well impregnated, leading to better ionic conductivity and lower gas permeability. The fuel cell constructed with PFSF solution based membranes shows superior performance as compared to that of its aqueous PFSA solution based counterpart, which is comparable to that of commercial Nation® 211.
机译:全氟磺酸(PFSA)离聚物的前体全氟磺酰氟(PFSF)树脂已成功溶于全氟溶剂中,并且利用其疏水性解决了将亲水PFSA溶液浸渍到疏水性多孔膨体聚四氟乙烯(ePTFE)中的难题。通过这种简单而有效的方法制造的复合膜被很好地浸渍,从而导致更好的离子传导性和更低的透气性。与基于PFSA水溶液的燃料电池相比,使用基于PFSF溶液的膜构造的燃料电池表现出卓越的性能,与商用211相当。

著录项

  • 来源
    《Journal of power sources》 |2013年第1期|392-395|共4页
  • 作者单位

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

    School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Road, Shanghai 200240, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Perfluorinated sulfonyl fluoride solution; Fuel cell; Impregnated composite membrane; Perfluorinated sulfonic acid; Poly(tetrafluoroethylene);

    机译:全氟磺酰氟溶液;燃料电池;浸渍复合膜;全氟磺酸;聚四氟乙烯;

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