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Issue 13, 2012
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Hydrocarbon blend membranes with suppressed chemical crossover for redox flow batteries

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Abstract

A hydrocarbon blend membrane consisting of an acidic polymer (sulfonated poly (ether ether ketone), SPEEK) and a basic polymer (polysulfone-2-amide-benzimidazole, PSf-ABIm) has been prepared and assessed in vanadium redox flow batteries (VRBs). The vanadium ion (VO)2+ permeability through the blend membrane is about 50 times lower than that of Nafion 117 and 4 times lower than that of the plain SPEEK. The Coulombic efficiency and energy efficiency of the single cell with the blend membrane are higher than those with Nafion and plain SPEEK membranes. The blend membrane also shows better chemical stability than plain SPEEK. The results demonstrate that blend membranes of this type are promising for VRBs.

Graphical abstract: Hydrocarbon blend membranes with suppressed chemical crossover for redox flow batteries

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Publication details

The article was received on 12 Apr 2012, accepted on 13 Apr 2012 and first published on 13 Apr 2012


Article type: Communication
DOI: 10.1039/C2RA20668D
RSC Adv., 2012,2, 5554-5556

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    Hydrocarbon blend membranes with suppressed chemical crossover for redox flow batteries

    X. Zhao, Y. Fu, W. Li and A. Manthiram, RSC Adv., 2012, 2, 5554
    DOI: 10.1039/C2RA20668D

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