Zakeri, Masoumeh and Abouzari-Lotf, Ebrahim and Nasef, Mohamed Mahmoud and Ahmad, Arshad and Ripin, Adnan and Ting, Teo Ming and Sithambaranathan, Paveswari (2019) Preparation and characterization of highly stable protic-ionic-liquid membranes. International Journal of Hydrogen Energy, 44 (58). pp. 30732-30742. ISSN 0360-3199
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Official URL: http://dx.doi.org/10.1016/j.ijhydene.2018.04.015
Abstract
A highly durable proton exchange membranes (PEM)s based on covalently supported ionic liquid (IL) bearing sulfonic acid imidazolium groups were successfully fabricated. The membrane preparation involved radiation induced grafting of 1-vinyl imidazole (1-VIm) onto poly(ethylene-co-tetraflouroethene) (ETFE) film, followed by covalent immobilization of 3-sulfopropyl and subsequent treatment with trifluoromethanesulfonic acid. The ionic conductivity of the supported IL membranes was increased with the increase in the concentration of IL and reached a maximum value of 138 mS cm−1 in a fully hydrated state with an ion exchange capacity of 4.82 mmol g−1 that is higher than Nafion with a similar thickness. The membranes displayed excellent chemical and mechanical stability. In addition, the dimensional and thermal stability of supported IL-membranes were significantly higher than commercial Nafion membranes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Dimensional stability, Poly(vinyl imidazole) |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Chemical Engineering |
| ID Code: | 89336 |
| Deposited By: | Widya Wahid |
| Deposited On: | 09 Feb 2021 08:26 |
| Last Modified: | 09 Feb 2021 08:26 |
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