Date of Award
5-2024
Document Type
Thesis
Degree Name
Master of Science (MS)
Department
Chemical and Biomolecular Engineering
Committee Chair/Advisor
Eric M. Davis
Committee Member
Mark C. Theis
Committee Member
Mark E. Roberts
Abstract
This paper attempts to investigate the influence of solvent choice to the Nafion-lignin proton exchange membranes that used in the vanadium redox flow batteries. The influence of two different solvents: DMF and DMSO were investigated in this paper. Results show that when using DMSO as solvent, Nafion-lignin membranes' vanadium ion cross over can be greatly reduced in comparing with membranes prepared from DMF. Also, membranes prepared from DMSO also show higher water uptake ability and lower ion exchange capacity than the membranes prepared from DMF. This paper has also investigated the influence of lignin type to the membranes. Results show that, when using DMSO as solvent, high molecular weight lignin has somewhat better performance than the low molecular weight lignin. TEM image results show that such difference could be resulted from difference in the patterns of lignin dispersion.
Recommended Citation
Wang, Zhongyu, "Elucidating the Impact of Casting Solvent on Vanadium Ion Transport in Solution-Cast Ionomer Biocomposites Containing Lignin" (2024). All Theses. 4232.
https://open.clemson.edu/all_theses/4232