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Highly Stable N3-Substituted Imidazolium-Based Alkaline Anion Exchange Membranes: Experimental Studies and Theoretical Calculations
Abstract
Imidazolium cations with various N3-substituents (including methyl, butyl, heptyl, dodecyl, isopropyl, and diphenylmethyl groups) were synthesized and investigated in terms of their alkaline stability. The effect of the N3-substituent on the alkaline stability was studied by quantitative 1 H NMR spectra and density functional theory (GGA-BLYP) calculations. The isopropyl substituted imidazolium cation ([DMIIm] + ) with the highest LUMO energy value exhibited the highest alkaline stability in aqueous NaOH. The [DMIIm] + cation also exhibited higher alkaline stability than that of a quaternary ammonium cation, benzyltrimethyl-ammonium ([BTMA] + ), in CD 3 OD/D 2 O NaOH solution at elevated temperatures. This observation inspired the preparation of [DMIIm] + -based alkaline anion exchange membranes (AEMs) which showed high alkaline stability in alkaline solution.
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Cites
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Jacobson, M. Z., Colella, W. G., & Golden, D. M. (2005) · Science · doi:10.1126/science.1109157 · Cited by 1,023
Imidazolium functionalized polysulfone anion exchange membrane for fuel cell application
Zhang, F., Zhang, H., & Qu, C. (2011) · Journal of Materials Chemistry · doi:10.1039/c1jm10656b · Cited by 302
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Durability challenges of anion exchange membrane fuel cells
Mustain, W. E., Chatenet, M., Page, M., & Kim, Y. S. (2020) · Energy & Environmental Science · doi:10.1039/d0ee01133a · Cited by 677
Electrocatalysis in Alkaline Media and Alkaline Membrane-Based Energy Technologies
Yang, Y., Peltier, C. R., Zeng, R., Schimmenti, R., Li, Q., Huang, X., Yan, Z., Potsi, G., Selhorst, R., Lu, X., et al. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00331 · Cited by 544
Hugar, K. M., Kostalik, H. A., & Coates, G. W. (2015) · Journal of the American Chemical Society · doi:10.1021/jacs.5b02879 · Cited by 465
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Metadata
- Authors
- Gu, F., Dong, H., Li, Y., Si, Z., & Yan, F.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-12-19
- Volume
- 47
- Issue
- 1
- Pages
- 208-216
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2333560421
- Cited by
- 173
- References
- 2
- FWCI
- 8.79
- Type
- journal article
- Language
- en
- Open access
- closed
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- Gu, F., Dong, H., Li, Y., Si, Z., & Yan, F. (2014). Highly Stable N3-Substituted Imidazolium-Based Alkaline Anion Exchange Membranes: Experimental Studies and Theoretical Calculations. Macromolecules. https://doi.org/10.1021/ma402334t
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