Preparation and characterization of imidazolium-based membranes for anion exchange membrane fuel cell applications |
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| Authors: | Bencai Lin Gang Qiao Fuqiang Chu Juan Wang Tianying Feng Ningyi Yuan Shuai Zhang Xin Zhang Jianning Ding |
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| Affiliation: | 1. School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou, 213164, Jiangsu, China;2. Jiangnan Graphene Research Institute, Changzhou 213100, Jiangsu, China;3. Micro/Nano Science and Technology Center, Jiangsu University, Zhenjiang, 212013, China |
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| Abstract: | New anion exchange membranes (AEMs) with high conductivity, good dimensional and alkaline stability are currently required in order to develop alkaline fuel cells into efficient and clean energy conversion devices. In this study, a series of AEMs based on 1, 2-dimethyl-3-(4-vinylbenzyl) imidazolium chloride (DMVIm]Cl]) are prepared and investigated. DMVIm]Cl] is synthesized and used as ion carriers and hydrophilic phase in the membranes. The water uptake, swelling ratio, IEC and conductivity of the AEMs increase with increasing the DMVIm]Cl]. The imidazolium-based AEMs show excellent thermal stability, sufficient mechanical strength, the membrane which containing 30% mass fraction of DMVIm]Cl] shows conductivity up to 1.0 × 10?2 S cm?1 at room temperature and good long-term alkaline stability in 1 M KOH solution at 80 °C. The results of this study suggest that this type of AEMs have good perspectives for alkaline anion exchange membrane fuel cell applications. |
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| Keywords: | Anion exchange membrane Fuel cell Alkaline stability Imidazolium-based membranes High conductivity |
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