Highly Conductive and Water-Swelling Resistant Anion Exchange Membrane for Alkaline Fuel Cells
Highly Conductive and Water-Swelling Resistant Anion Exchange Membrane for Alkaline Fuel Cells
复制标题
用于碱性燃料电池的高导电性和抗水膨胀阴离子交换膜
DOI：
10.3390/ijms20143470
复制
发表时间：
2019-07-02
影响因子：
5.6
通讯作者：
Yang, Zhengjin
中科院分区：
文献类型：
--
作者：
Ge, Qianqian;Zhu, Xiang;Yang, Zhengjin
为了改善阴离子交换膜（AEM）的离子电导率和水溶胀性之间的折衷效应，通过超支化聚（4-乙烯基苄基氯）（HB-PVBC）与多胺低聚物聚（N，N-二甲基苄胺）的季铵化反应，制备了一种兼具密集功能化结构和交联结构优点的交联超支化膜（C-HBM）.膜显示出发达的微相分离形态，证实了小角X射线散射（SAXS）和透射电子显微镜（TEM）。此外，实现了相应的高离子电导率、强烈抑制的水溶胀、高的热稳定性和可接受的碱稳定性。特别值得注意的是氢氧化物电导率与水溶胀的比率（33.0）比大多数已发表的侧链型、嵌段和密集官能化的AEM高得多，这意味着其在燃料电池中的应用潜力更高。
To ameliorate the trade-off effect between ionic conductivity and water swelling of anion exchange membranes (AEMs), a crosslinked, hyperbranched membrane (C-HBM) combining the advantages of densely functionalization architecture and crosslinking structure was fabricated by the quaternization of the hyperbranched poly(4-vinylbenzyl chloride) (HB-PVBC) with a multiamine oligomer poly(N,N-Dimethylbenzylamine). The membrane displayed well-developed microphase separation morphology, as confirmed by small angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). Moreover, the corresponding high ionic conductivity, strongly depressed water swelling, high thermal stability, and acceptable alkaline stability were achieved. Of special note is the much higher ratio of hydroxide conductivity to water swelling (33.0) than that of most published side-chain type, block, and densely functionalized AEMs, implying its higher potential for application in fuel cells.