膜科学与技术

主链结构对阴离子交换膜碱稳定性的影响

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；聚合物主链结构；碱稳定性

出版年,卷(期):页码： 2022,42(2):117-127

摘要：

碱性阴离子交换膜燃料电池（AAEMFCs）可使用低成本的非Pt催化剂，具有反应高效及环境友好等优点，因可在一定程度上取代质子交换膜燃料电池（PEMFCs）而备受关注。阴离子交换膜（AEMs）作为AAEMFCs的核心部件，需要兼备优异的OH-传输性能、机械性能、热稳定性及碱稳定性等。但目前AEMs仍面临的巨大挑战是耐碱性较差，不能够大规模商业化应用。本文重点综述了聚合物主链结构对AEMs的碱稳定性的影响，分析总结了碱性环境下AEMs主链的降解机理及提高碱稳定性的解决思路，并对未来可能的发展方向进行了展望。

Alkaline anion exchange membrane fuel cells (AAEMFCs) can use low-cost non-PT catalysts, and have the advantages of high reaction efficiency and environmental friendliness. AAEMFCs can replace proton exchange membrane fuel cells (PEMFCs) to some extent, which has attracted much attention. As the core component of AAEMFCs, anion exchange membrane (AEMs) requires excellent OH- transport performance, mechanical properties, thermal stability and alkaline stability. However, AEMs is still faced with the great challenge of poor alkaline resistance, which can not be used in large-scale commercial applications. In this paper, the influence of the polymerization backbone structures on the alkaline stability of AEMs was reviewed, the degradation mechanism and solution of AEMs in alkaline environment were analyzed and summarized, and the possible development direction of AEMs in the future was prospected.

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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