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Novel anion exchange membranes based on polymerizable imidazolium salt for alkaline fuel cell applications

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Novel anion exchange membranes based on polymerizable imidazolium salt for alkaline fuel cell applications.pdf (295.0Kb)
Date
2011-01-23
Author
Li, Wei
Fang, Jun
方军
Lv, Ming
Chen, Cuixue
Chi, Xianjun
Yang, Yixu
Zhang, Yanmei
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  • 化学化工-已发表论文 [14235]
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Abstract
A new polymerizable imidazolium salt monomer, 1-(4-vinylbenzyl)-3-methyl-imidazolium chloride ([VBMI]Cl), has been readily synthesized by reaction of 4-vinylbenzyl chloride with 1-methylimidazole. Novel anion exchange membranes (AEMs) based on the copolymers of [VBMI]Cl and styrene have been prepared and characterized. Excellent thermostability of the membranes is observed through the thermo-gravimetric analysis (TGA) curves. Water uptake and ion exchange capacity (IEC) of the OH(-) form AEMs range from 26.1% to 61.9% and from 0.95 to 1.45 mmol g(-1), respectively. This type of AEM displays significant ionic conductivities over the order of 10(-2) S cm(-1) in deionized water at room temperature, and the membranes are stable in 10 mol L(-1) NaOH solution at 60 degrees C for 120 h. For the H(2)/air single fuel cell at 30 degrees C with this novel AEM, the peak power density of 33 mW cm(-2) is obtained at a current density of 59 mA cm(-2).
Citation
JOURNAL OF MATERIALS CHEMISTRY,2011,21(30):11340-11346
URI
http://dx.doi.org/doi:10.1039/c1jm11093d
WOS:000292974400043
https://dspace.xmu.edu.cn/handle/2288/11968

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