Abstract
Ionically cross-linked ionomers have been developed via sol-gel chemistry by introducing poly(vinylimidazole)-functionalized mercaptopropyltrimethoxysilane into Nafion. The cross-linked polysiloxane framework endows the membrane with homogeneity and good stability. The ionical cross-linking enables the self-assembly between the inorganic framework and Nafion, which produces concentrated and inter-connected channels. This structure offers a practicably effective blocking effect to minimize the methanol cross-over problem in DMFCs, and improves the power output by 35% in comparison with a commercial Nafion membrane.
Original language | English |
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Pages (from-to) | 1991-1995 |
Number of pages | 5 |
Journal | Polymer Chemistry |
Volume | 3 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2012 Aug 1 |
All Science Journal Classification (ASJC) codes
- Bioengineering
- Biochemistry
- Polymers and Plastics
- Organic Chemistry