Poly(arylene alkylene)s functionalized with perfluorosulfonic acid groups as proton exchange membranes for vanadium redox flow batteries
Khataee, Amirreza ; Nederstedt, Hannes LU ; Jannasch, Patric LU
and Wreland Lindström, Rakel
(2023)
In Journal of Membrane Science
671.
- Abstract
- With the aim to develop vanadium redox flow battery (VRFB) membranes beyond state of the art, we have in the present work functionalized poly(p-terphenylene)s with highly acidic perfluorosulfonic groups and investigated their performance as proton exchange membranes (PEMs). Consequently, two poly(p-terphenylene alkylene)s tethered with perfluoroalkylsulfonic acid and perfluorophenylsulfonic acid, respectively, were synthesized through superacid-mediated polyhydroxyalkylations and cast into PEMs. Compared with Nafion 212, the PEM carrying perfluorophenylsulfonic acid groups (PTPF-Phenyl-SA) was found to exhibited higher ionic conductivity and eight times lower vanadium (IV) permeation rate. The latter explains the longer... (More)
- With the aim to develop vanadium redox flow battery (VRFB) membranes beyond state of the art, we have in the present work functionalized poly(p-terphenylene)s with highly acidic perfluorosulfonic groups and investigated their performance as proton exchange membranes (PEMs). Consequently, two poly(p-terphenylene alkylene)s tethered with perfluoroalkylsulfonic acid and perfluorophenylsulfonic acid, respectively, were synthesized through superacid-mediated polyhydroxyalkylations and cast into PEMs. Compared with Nafion 212, the PEM carrying perfluorophenylsulfonic acid groups (PTPF-Phenyl-SA) was found to exhibited higher ionic conductivity and eight times lower vanadium (IV) permeation rate. The latter explains the longer self-discharge duration of the VRFB based on the PTPF-Phenyl-SA. In addition, the VRFB assembled with the PTPF-Phenyl-SA PEM exhibited a high average coulombic efficiency of 99.6% for over 100 cycles with a capacity fade of 0.24% per cycle, which was 50% lower than when Nafion 212 was used. More importantly, an excellent capacity retention was achieved through electrochemical rate performance experiments at different current densities. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3a7c2d39-e296-4205-a687-73782d0a12eb
- author
- Khataee, Amirreza
; Nederstedt, Hannes
LU
; Jannasch, Patric
LU
and Wreland Lindström, Rakel
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Membrane Science
- volume
- 671
- article number
- 121390
- pages
- 11 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85146659317
- ISSN
- 0376-7388
- DOI
- 10.1016/j.memsci.2023.121390
- language
- English
- LU publication?
- yes
- id
- 3a7c2d39-e296-4205-a687-73782d0a12eb
- date added to LUP
- 2023-01-13 13:51:25
- date last changed
- 2023-11-20 20:30:46
@article{3a7c2d39-e296-4205-a687-73782d0a12eb,
abstract = {{With the aim to develop vanadium redox flow battery (VRFB) membranes beyond state of the art, we have in the present work functionalized poly(<i>p</i>-terphenylene)s with highly acidic perfluorosulfonic groups and investigated their performance as proton exchange membranes (PEMs). Consequently, two poly(<i>p</i>-terphenylene alkylene)s tethered with perfluoroalkylsulfonic acid and perfluorophenylsulfonic acid, respectively, were synthesized through superacid-mediated polyhydroxyalkylations and cast into PEMs. Compared with Nafion 212, the PEM carrying perfluorophenylsulfonic acid groups (PTPF-Phenyl-SA) was found to exhibited higher ionic conductivity and eight times lower vanadium (IV) permeation rate. The latter explains the longer self-discharge duration of the VRFB based on the PTPF-Phenyl-SA. In addition, the VRFB assembled with the PTPF-Phenyl-SA PEM exhibited a high average coulombic efficiency of 99.6% for over 100 cycles with a capacity fade of 0.24% per cycle, which was 50% lower than when Nafion 212 was used. More importantly, an excellent capacity retention was achieved through electrochemical rate performance experiments at different current densities.}},
author = {{Khataee, Amirreza and Nederstedt, Hannes and Jannasch, Patric and Wreland Lindström, Rakel}},
issn = {{0376-7388}},
language = {{eng}},
publisher = {{Elsevier}},
series = {{Journal of Membrane Science}},
title = {{Poly(arylene alkylene)s functionalized with perfluorosulfonic acid groups as proton exchange membranes for vanadium redox flow batteries}},
url = {{http://dx.doi.org/10.1016/j.memsci.2023.121390}},
doi = {{10.1016/j.memsci.2023.121390}},
volume = {{671}},
year = {{2023}},
}