Issue |
E3S Web Conf.
Volume 503, 2024
The 9th International Symposium on Applied Chemistry in conjuction with the 5th International Conference on Chemical and Material Engineering (ISAC-ICCME 2023)
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Article Number | 08006 | |
Number of page(s) | 9 | |
Section | Polymer and Macromolecular Chemistry | |
DOI | https://doi.org/10.1051/e3sconf/202450308006 | |
Published online | 20 March 2024 |
Poly (vinyl alcohol)/Polyquaternium-7 Anion Exchange Membranes for Alkaline Polymer Electrolyte Fuel Cells
Department of Chemical Engineering, Diponegoro University, Semarang, Indonesia
* Corresponding author: asep.samsudin@live.undip.ac.id
Anion exchange membrane (AEM) is one of the critical components in Alkaline polymer electrolyte fuel cells. This is due to the crucial function in facilitating the process of hydroxide ion conduction. A series of anion exchange membranes (AEMs) were synthesized using poly (vinyl alcohol) (PVA) as the backbone polymer and polyquaternium-7 as the copolymer that provides a hydroxide conducting group source. Thermal and chemical crosslinking was introduced to reduce the excessive swelling of the membranes. The effect of the PVA/PQ7 mass ratio on AEMs performance was investigated. The FTIR study reveals that the spectra exhibit the primary functional groups of PVA, polyquaternium-7, and chemical crosslinking. According to the SEM image, the PVA/PQ7 membranes have smooth and uniform morphology. Water uptake and swelling degree increased with increasing mass ratio of polyquaternium-7 to PVA. AEMs with a polyquaternium-7 to PVA ratio of 0.5 provide the highest IEC and hydroxide conductivity values of 1.52 mmol/g and 9.26 mS/cm at room temperature, respectively.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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