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Jingtao Wang, Xiujun Yue, Zizhuo Zhang, Zheng Yang, Yifan Li, Han Zhang, Xinlin Yang, Hong Wu and Zhongyi Jiang Enhancement of Proton Conduction at Low Humidity by Incorporating Imidazole Microcapsules into Polymer Electrolyte Membranes Advanced Functional Materials 22

Version of Record online: 25 JUN 2012 | DOI: 10.1002/adfm.201201436

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Imidazole microcapsules with high imidazole group loading and large lumen size are synthesized and incorporated into a sulfonated poly(ether ether ketone) (SPEEK) membrane. Due to its superior water retention properties, anhydrous proton transfer feature of embedded imidazole microcapsules, and the low energy barrier pathways from the acid-base pairs, the SPEEK composite membrane displays notably enhanced proton conductivity in particular under low humidity.

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