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A robust pendant-type cross-linked anion exchange membrane (AEM) with high hydroxide conductivity at a moderate IEC value.
- Source :
-
Journal of Materials Science . Apr2017, Vol. 52 Issue 7, p3946-3958. 13p. 5 Diagrams, 2 Charts, 8 Graphs. - Publication Year :
- 2017
-
Abstract
- A novel pendant-type cross-linked anion exchange membrane ( pc-AEM) was successfully synthesized using a pre-synthesis approach to precisely control the IEC value and the degree of cross-linking. The physical properties of the pc-AEMs and the non-cross-linked pc-AEMs as well as Nafion 117 were determined, and the results were systematically compared. It was found that the synthesized pc-AEMs show much better dimensional retention capacity than the non-cross-linked pc-AEM and Nafion 117. In addition, the mechanical strength of the pc-AEMs was also remarkably enhanced. By increasing the IEC value of the pc-AEMs to the same level of Nafion 117, the highest ionic conductivity of 0.036 S/cm at 80 °C was reached. The remarkable enhancement of conductivity is chiefly attributed to the construction of highly efficient ionic transport channels resulting from the combined pendant-type and cross-linked architectures of the pc-AEMs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 52
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 120811596
- Full Text :
- https://doi.org/10.1007/s10853-016-0656-3