Advances in proton-exchange membranes for fuel cells: an overview on proton conductive channels (PCCs)
Advances in proton-exchange membranes for fuel cells: an overview on proton conductive channels (PCCs)
复制标题
燃料电池质子交换膜的进展：质子传导通道（PCC）概述
DOI：
10.1039/c3cp50296a
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发表时间：
2013-01-01
影响因子：
3.3
通讯作者：
Xu, Tongwen
中科院分区：
文献类型：
--
作者：
Wu, Liang;Zhang, Zhenghui;Xu, Tongwen
质子交换膜(PEM)显示出独特的离子选择性传输，使高性能质子交换膜燃料电池(PEMFC)取得了突破性进展。对商用Nafion(R)的形态和质子传输机制的初步了解推动了大多数研究人员调整质子传导通道(PCCs)。具体地说，从统计和嵌段共聚PEM中获得的形态-性质关系的知识突出了PCCs对齐的重要性。此外，在场定向共聚质子交换膜、纳米纤维复合质子交换膜和介孔质子交换膜中人工PCCs的制备和取向的不断努力，为提高膜的性能开辟了新的范式。这一视角概述了渠道的最新发展，从自组装到人工渠道，并特别强调它们的形成和排列。最后展望了高度排列的聚碳酸酯对燃料电池运行的好处，并从实用的角度给出了进一步开发新的质子交换膜的方向。
Proton-exchange membranes (PEM) display unique ion-selective transport that has enabled a breakthrough in high-performance proton-exchange membrane fuel cells (PEMFCs). Elemental understanding of the morphology and proton transport mechanisms of the commercially available Nafion (R) has promoted a majority of researchers to tune proton conductive channels (PCCs). Specifically, knowledge of the morphology-property relationship gained from statistical and segmented copolymer PEMs has highlighted the importance of the alignment of PCCs. Furthermore, increasing efforts in fabricating and aligning artificial PCCs in field-aligned copolymer PEMs, nanofiber composite PEMs and mesoporous PEMs have set new paradigms for improvement of membrane performances. This perspective profiles the recent development of the channels, from the self-assembled to the artificial, with a particular emphasis on their formation and alignment. It concludes with an outlook on benefits of highly aligned PCCs for fuel cell operation, and gives further direction to develop new PEMs from a practical point of view.