Cross-linked high conductive membranes based on water soluable ionomer for high performance proton exchange membrane fuel cells.
首发时间:2012-11-21
Abstract:In this paper, a series of proton exchange membrane prepared by "Click Reaction" cross-linked water soluble sulfonated poly (ether ether ketone) containing dipropenyl groups (SDPEEK-nE/nH) is reported. Compared with self-crosslinked membranes (SDPEEK-nS), this "Click" cross-linked membranes exhibit extremely reduced water uptake and swelling ratio which used 1,2-Ethanedithiol and 1,6-Hexanedithiol as the cross-linker to apply the "Click"reactions. The lowest proton conductivity of the "Click" cross-linked SDPEEK-7H membrane reaches to 0.168 S cm-1 at 80 oC, and the highest methanol permeability of the "Click" cross-linked SDPEEK-8E is 4.13 × 10-7 cm2 s-1, 5 times lower than that of Nafion117 membrane. All the results imply that the novel thiol cross-linker results the cross-linked membranes are promising alternative material for fuel cell application.
keywords: Polymer chemistry and Physics sulfonated poly (ether ether ketone) water soluble Click Reaction cross-link
点击查看论文中文信息
以点击反应制备水溶性磺化聚醚醚酮交联膜及其性能研究
摘要:本文采用了点击反应的方法,分别以乙二硫醇,己二硫醇作为交联剂对不同磺化度(1.6,1.8)侧链含烯丙基的水溶性磺化聚醚醚酮进行交联反应,从而制备出一系列的高磺化度交联型质子交换膜(SDPEEK-nE/nH)。以BPO为交联剂制备出自交联型质子交换膜(SDPEEK-nS)。结果表明,以二硫醇为交联剂的交联膜具有堪比Nafion的质子传导率。质子传导率均高于0.07 S cm-1,80 oC时的传导率均高于0.168 S cm-1。所有交联膜(含自交联膜在内)其甲醇渗透率最高仅为5.82×10-7 cm2 s-1,远低于Nafion117的2.38×10-6 cm2 s-1。
论文图表:
引用
No.****
同行评议
共计0人参与
勘误表
以点击反应制备水溶性磺化聚醚醚酮交联膜及其性能研究
评论
全部评论0/1000