Sulfonated Phenylene/Quinquephenylene/Perfluoroalkylene Terpolymers as Proton Exchange Membranes for Fuel Cells

DOI Web Site 被引用文献11件 参考文献23件
  • Yaojian Zhang
    Fuel Cell Nanomaterials Center, University of Yamanashi, 6-43 Miyamae, Kofu, Yamanashi 400-0021, Japan
  • Junpei Miyake
    Clean Energy Research Center, University of Yamanashi, 4 Takeda, Kofu, Yamanashi 400-8510, Japan
  • Ryo Akiyama
    Fuel Cell Nanomaterials Center, University of Yamanashi, 6-43 Miyamae, Kofu, Yamanashi 400-0021, Japan
  • Ryo Shimizu
    Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4 Takeda, Kofu, Yamanashi 400-8510, Japan
  • Kenji Miyatake
    Fuel Cell Nanomaterials Center, University of Yamanashi, 6-43 Miyamae, Kofu, Yamanashi 400-0021, Japan

書誌事項

公開日
2018-02-16
資源種別
journal article
DOI
  • 10.1021/acsaem.7b00162
公開者
American Chemical Society (ACS)

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説明

A novel series of terpolymers (SQF) containing sulfophenylene, quinquephenylene, and perfluoroalkylene groups in the polymer main chain were designed and synthesized as proton exchange membranes for fuel cells. The terpolymers with high molecular weight (Mw = 179–207 kDa, Mn = 41–50 kDa) and different ion exchange capacity (IEC) values (1.70, 2.56, and 3.34 mequiv g–1) gave flexible self-standing membranes by solution casting. Compared to the two-component (sulfophenylene and quinquephenylene segments) copolymer membranes, the incorporation of the third component, perfluoroalkylene groups, resulted in better water utilization for the proton conduction, while it did not alter the other properties such as gas permeability and mechanical strength. The selected membrane (SQF-3 with IEC = 2.56 mequiv g–1) exhibited high fuel cell performance under high- and low-humidity conditions with maximum power density reaching 0.97 W cm–2 at 100% RH (relative humidity) and 0.82 W cm–2 at 30% RH, respectively, at a curren...

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