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Ordered channels for OH- migration formed by quaternized mesoporous silica and its application in anionic conductive membranes.
- Source :
-
Materials Technology . Jan2021, Vol. 36 Issue 1, p26-35. 10p. - Publication Year :
- 2021
-
Abstract
- A series of anion exchange membranes (CSPY-x-QMSNs) were synthesised based on the schiff base functionalised chitosan (CSPY) as polymer matrix, a given amount of quaternized mesoporous silica (QMSNs) as filler, glutaraldehyde (GA) as crosslinker and the iodomethane as quaternization reagent. The maximum conductivity (3.55 × 10−2 S cm−1) at 80°C, which is about six times that of CSPY-0-QMSNs (the content of QMSNs is 0 wt%), was obtained under the content of QMSNs is 20 wt% (CSPY-20-QMSNs). The accelerated ageing experiment was carried out in 3 mol L−1 KOH solution for 120 h at 80°C, whichrevealed that theconductivity of CSPY-20-QMSNs membranes retains approximately 89.1% of its initial conductivity. Methanol permeability of CSPY-x-QMSNs membranes was only 1.2–3.3% of the Nafion-117 membrane in 3 mol L−1 methanol at 60°C for 3 h. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10667857
- Volume :
- 36
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Materials Technology
- Publication Type :
- Academic Journal
- Accession number :
- 147712076
- Full Text :
- https://doi.org/10.1080/10667857.2020.1718842