Design and Optimization of a Hyper-Branched Polyimide Proton Exchange Membrane with Ultra-High Methanol-Permeation Resistivity for Direct Methanol Fuel Cells Applications
Abstract
:1. Introduction
2. Experimental
2.1. Materials
2.2. Synthesis
2.3. Membrane Preparation
2.4. Measurements and Characterizations
3. Results and Discussion
4. Conclusions
Author Contributions
Acknowledgments
Conflicts of Interest
References
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Membranes | 30% PVDF | 40% PVDF | 50% PVDF | 60% PVDF | Nafion 117 |
---|---|---|---|---|---|
Water uptake (%) | 25.79 ± 0.03 | 17.87 ± 0.04 | 14.11 ± 0.04 | 9.05 ± 0.03 | 20.97 ± 0.05 |
Volume swelling (%) | 26.95 ± 0.05 | 25.84 ± 0.06 | 24.73 ± 0.04 | 14.87 ± 0.04 | 36.29 ± 0.05 |
IEC (mmol/g) | 0.6212 ± 0.03 | 0.5931 ± 0.02 | 0.5719 ± 0.03 | 0.3540 ± 0.04 | 0.91 ± 0.05 |
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Ma, L.; Xu, G.; Li, S.; Ma, J.; Li, J.; Cai, W. Design and Optimization of a Hyper-Branched Polyimide Proton Exchange Membrane with Ultra-High Methanol-Permeation Resistivity for Direct Methanol Fuel Cells Applications. Polymers 2018, 10, 1175. https://doi.org/10.3390/polym10101175
Ma L, Xu G, Li S, Ma J, Li J, Cai W. Design and Optimization of a Hyper-Branched Polyimide Proton Exchange Membrane with Ultra-High Methanol-Permeation Resistivity for Direct Methanol Fuel Cells Applications. Polymers. 2018; 10(10):1175. https://doi.org/10.3390/polym10101175
Chicago/Turabian StyleMa, Liying, Guoxiao Xu, Shuai Li, Jiao Ma, Jing Li, and Weiwei Cai. 2018. "Design and Optimization of a Hyper-Branched Polyimide Proton Exchange Membrane with Ultra-High Methanol-Permeation Resistivity for Direct Methanol Fuel Cells Applications" Polymers 10, no. 10: 1175. https://doi.org/10.3390/polym10101175