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首页> 外文期刊>Journal of power sources >Sulfonated poly(ether ether ketone)-based composite membrane for polymer electrolyte membrane fuel cells
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Sulfonated poly(ether ether ketone)-based composite membrane for polymer electrolyte membrane fuel cells

机译：用于聚合物电解质膜燃料电池的磺化聚醚醚酮基复合膜

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The solid proton conductor zirconium phosphate sulfophenylenphosphonate of composition Zr(HPO_4)_(0.65)(SPP)_(1.35) where SPP denotes metasul-fophenylenphosphonate was prepared in the amorphous gel form in dimethyl formamide (DMF) and characterized by ~(31)P NMR. The composite membranes of SPEEK up to 50 wt.% of zirconium phosphate sulfophenylenphosphonate content were prepared by introducing the solid proton conductor from the gel. The composite membranes were characterized using FT-IR, powder X-ray diffraction, SEM, DSC/TGA. The proton conductivity of the membranes was measured under 100% relative humidity up to 70℃. The composite membranes had better thermal stability when compared with that of SPEEK. A three-fold increase in proton conductivity at 70℃ was observed for the composite membrane with 50 wt.% of solid proton conductor. Furthermore, the conductivity results imply that a critical percentage of proton conductor is needed to establish conduction pathways in the polymer matrix.
机译：组成为Zr（HPO_4）_（0.65）（SPP）_（1.35）的固体质子导体磷酸锆磺基苯膦酸锆以无定型凝胶形式制备，为二甲基甲酰胺（DMF），其特征为〜（31） 1 H NMR。通过从凝胶中引入固体质子导体来制备SPEEK的复合膜，该复合膜的最高含量为磷酸锆磺基苯膦酸酯含量的50重量％。使用FT-IR，粉末X射线衍射，SEM，DSC / TGA对复合膜进行表征。在高达70℃的100％相对湿度下测量了膜的质子传导率。与SPEEK相比，复合膜具有更好的热稳定性。对于具有50wt。％固体质子导体的复合膜，在70℃下观察到质子传导率增加了三倍。此外，电导率结果暗示需要一定百分比的质子导体才能在聚合物基体中建立传导路径。

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