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Issue 14, 2018
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Anion exchange membranes with branched ionic clusters for fuel cells

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Abstract

Highly conductive anion exchange membranes (AEMs) are urgently desired for various electro-chemical technologies like fuel cells, flow batteries and electro-dialysis. Available strategies for enhancing the hydroxide conductivity of AEMs commonly focus on increasing the concentration of cationic sites, which, in turn, causes undesirable, excessive dimensional swelling and poor alkaline stability. To overcome this problem, a novel AEM with flexible branched ionic clusters was developed in this study. The improved cation density and cation mobility in the branched ionic clusters have resulted in highly ordered nano-scale channels for hydroxide ion transport and an excellent fuel cell performance of 266 mW cm−2 at 60 °C. Low water uptake and restricted swelling ratio as well as good alkaline stability were also observed benifiting from its unique polymer architecture.

Graphical abstract: Anion exchange membranes with branched ionic clusters for fuel cells

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Publication details

The article was received on 02 Feb 2018, accepted on 26 Feb 2018 and first published on 27 Feb 2018


Article type: Paper
DOI: 10.1039/C8TA01114A
Citation: J. Mater. Chem. A, 2018,6, 5993-5998
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    Anion exchange membranes with branched ionic clusters for fuel cells

    Y. He, X. Ge, X. Liang, J. Zhang, M. A. Shehzad, Y. Zhu, Z. Yang, L. Wu and T. Xu, J. Mater. Chem. A, 2018, 6, 5993
    DOI: 10.1039/C8TA01114A

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