膜科学与技术

阴离子交换膜阳离子基团的碱稳定性研究进展

作者：王雪，李永纲，郑吉富，张所波，李胜海

单位： 1.中国科学院长春应用化学研究所，中国科学院生态环境高分子材料重点实验室，长春 130022；2.中国科学技术大学应用化学与工程学院，合肥 230026

关键词：碱性阴离子交换膜燃料电池；阴离子交换膜；碱稳定性；阳离子基团

出版年,卷(期):页码： 2022,42(3):145-152

摘要：

碱性阴离子交换膜燃料电池（AAEMFCs）因其优异的动力学反应特性、可使用低成本的非Pt催化剂、可抑制燃料渗透等优点而得到迅速发展。阴离子交换膜（AEMs）作为AAEMFCs的核心部件，对AAEMFCs的性能起到直接且关键的影响。为满足AAEMFCs的使用性能，AEMs通常需要具备高OH-电导率及优异的热稳定性、机械稳定性及碱稳定性。然而目前AEMs的碱稳定性仍面临着巨大挑战。AEMs的碱稳定性的下降主要是由于碱性环境下AEMs的聚合物骨架和阳离子基团的降解引起。本文将结合近年来国内外研究进展梳理AEMs的阳离子基团的碱稳定性问题及解决思路，并对其未来的发展趋势进行了合理的预测。

Alkaline anion exchange membrane fuel cells (AAEMFCs) have been developed rapidly due to their excellent kinetic reaction characteristics, the availability of low-cost non-Pt catalysts, and the ability to inhibit fuel penetration. As the core part of AAEMFCs, anion exchange membrane (AEMs) plays a direct and critical role in the performance of AAEMFCs. To meet the requirements of AAEMFCs, AEMs usually require high OH- ionic conductivity and excellent thermal, mechanical, and alkaline stability. However, the alkaline stability of AEMs is still facing great challenges. The decrease of the alkaline stability of AEMs is mainly caused by the degradation of the polymer backbone and cationic groups in the alkaline environment. In this paper, combined with recent research progress at home and abroad, the alkaline stability problems and solutions of cationic groups of AEMs are sorted out, and the development trend of AEMs in the future is reasonably predicted.

王雪（1997-），女，河北邢台人，在读硕士生，主要从事膜材料的制备与性能方向的研究

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