Impact of Advances in Anion Exchange Membranes and Ionomers on Alkaline Fuel Cells.

IF 3.5 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemistry - An Asian Journal Pub Date : 2025-07-21 DOI:10.1002/asia.202500100

Zhongyang Wang, Shrihari Sankarasubramanian, Jianping Chen, Vijay K Ramani

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Abstract

The operation of low-temperature electrochemical energy conversion systems (fuel cells, electrolyzers) at high pH values is of perennial interest due to the possibility of moving away from expensive platinum group metal catalysts and reducing cost. Historically, the anion exchange membranes (AEMs) and ionomers have been hampered by performance (ionic conductivity, mechanical strength) and chemical stability issues. In this context, select developments over the past decade in alternate AEM chemistries, water management methods, and production of membrane electrode assemblies (MEAs) that have enabled a significant leap in performance of alkaline fuel cells are examined. These developments are linked to performance improvements in alkaline H₂/O₂ fuel cells and also consider developments in alkaline fuel cells using nitrogen-containing fuels (ammonia, hydrazine), carbon-containing fuels (alcohols, glycols), and boron-containing fuels (sodium borohydride, ammonia borane). Finally, current challenges and bottlenecks are identified, and potential solutions are proposed.

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阴离子交换膜和离聚物研究进展对碱性燃料电池的影响。

在高pH值下运行低温电化学能量转换系统（燃料电池、电解槽）是长期关注的问题，因为有可能摆脱昂贵的铂族金属催化剂并降低成本。从历史上看，阴离子交换膜（AEMs）和离聚物一直受到性能（离子电导率、机械强度）和化学稳定性问题的阻碍。在此背景下，本文对过去十年中替代AEM化学、水管理方法和膜电极组件（MEAs）生产方面的发展进行了研究，这些发展使碱性燃料电池的性能有了重大飞跃。这些发展与碱性H2/O2燃料电池的性能改进有关，也考虑到使用含氮燃料（氨、肼）、含碳燃料（醇、醇）和含硼燃料（硼氢化钠、硼烷氨）的碱性燃料电池的发展。最后，指出了当前面临的挑战和瓶颈，并提出了可能的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemistry - An Asian Journal 化学-化学综合

CiteScore

7.00

自引率

2.40%

发文量

535

审稿时长

1.3 months

期刊介绍： Chemistry—An Asian Journal is an international high-impact journal for chemistry in its broadest sense. The journal covers all aspects of chemistry from biochemistry through organic and inorganic chemistry to physical chemistry, including interdisciplinary topics. Chemistry—An Asian Journal publishes Full Papers, Communications, and Focus Reviews. A professional editorial team headed by Dr. Theresa Kueckmann and an Editorial Board (headed by Professor Susumu Kitagawa) ensure the highest quality of the peer-review process, the contents and the production of the journal. Chemistry—An Asian Journal is published on behalf of the Asian Chemical Editorial Society (ACES), an association of numerous Asian chemical societies, and supported by the Gesellschaft Deutscher Chemiker (GDCh, German Chemical Society), ChemPubSoc Europe, and the Federation of Asian Chemical Societies (FACS).