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Phosphoric acid doped hydrophobic ionic liquid-based composite membranes for anhydrous proton exchange membrane application

机译:磷酸掺杂疏水离子液体基复合膜在无水质子交换膜中的应用

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In this study, phosphoric acid doped hydrophobic ionic liquid-based composite membranes are successfully synthesized and characterized. 1-Vinyl-3-butylimidazolium bis(trifluoromethylsulfonyl)-imide ([VBIm][NTf2]) was synthesized and used as hydrophobic phase in the composite membranes. The H3PO4 uptake of the composite membranes increases with the increasing content of [VBIm][NTf2] and then decreases. The resultant composite membranes showed good thermal stability, mechanical properties and high proton conductivity (up to the order of 10?2 S cm?1 at 180 °C) at high temperatures under anhydrous conditions. The results of this study suggest that this type of PEMs have good perspectives for high temperature proton exchange membrane fuel cell applications.
机译:在这项研究中,成功​​地合成并表征了磷酸掺杂的疏水离子液体基复合膜。合成了1-乙烯基-3-丁基咪唑鎓双(三氟甲基磺酰基)-酰亚胺([VBIm] [NTf 2 ]),并在复合膜中用作疏水相。复合膜的H 3 PO 4 吸收随着[VBIm] [NTf < small> 2 ],然后减小。所得复合膜表现出良好的热稳定性,机械性能和高质子传导性(高达10 ?2 S cm ?1 (在180°C下)在无水条件下的高温下。这项研究的结果表明,这种类型的PEM对高温质子交换膜燃料电池的应用具有良好的前景。

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