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首页> 外文期刊>Journal of Membrane Science >Preparation and properties of proton conducting organic-inorganic hybrid membranes based on hyperbranched aliphatic polyester and phosphoric acid
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Preparation and properties of proton conducting organic-inorganic hybrid membranes based on hyperbranched aliphatic polyester and phosphoric acid

机译：基于超支化脂肪族聚酯和磷酸的质子传导有机-无机杂化膜的制备及性能

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摘要

A series of organic-inorganic hybrid membranes based on phosphoric acid and hyperbranched aliphatic polyester (Boltorn (TM) H2O) used as electrolytes for polymer electrolyte membrane fuel cells (PEMFC) operated at the temperature higher than 100degreesC have been prepared via a sol-gel process, and characterized using P-31 MAS NMR. Boltorn (TM) H2O was doped into the hybrid membranes at different levels to provide high hydrophilic and water conservation property. A high proton conductivity was obtained with suitable H2O doping level, and the membrane with the highest proton conductivity remained a conductivity of 5 x 10(-4) S cm(-1) even after holding for 7 h at 130degreesC under 30% relative humidity. The TGA/DTG results have shown that the obtained hybrid membranes were stable up to 200degreesC. (C) 2004 Elsevier B.V. All rights reserved.
机译：经由溶胶-凝胶制备了一系列基于磷酸和超支化脂族聚酯（Boltorn（TM）H2O）的有机-无机杂化膜，用作在高于100摄氏度的温度下运行的聚合物电解质膜燃料电池（PEMFC）的电解质方法，并使用P-31 MAS NMR进行表征。将Boltorn（TM）H2O以不同的含量掺入杂化膜中，以提供高亲水性和节水性。在适当的H2O掺杂水平下获得了高质子电导率，即使在130°C和30％相对湿度下保持7小时，质子电导率最高的膜仍保持5 x 10（-4）S cm（-1）的电导率。 TGA / DTG结果表明，所获得的杂化膜在高达200℃下是稳定的。 （C）2004 Elsevier B.V.保留所有权利。

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