Hydroxide Ion Conducting Membranes Dually Functionalized with Cationic and Zwitterionic Groups
Shirole, Anuja LU ; Mansouri Bakvand, Pegah LU and Jannasch, Patric LU
(2023)
In ACS Applied Energy Materials
6(13).
p.7240-7249
- Abstract
- A series of ether-free poly(p-terphenyl piperidinium)s carrying both cationic and zwitterionic groups were prepared and evaluated as anion-exchange membranes (AEMs). First, a zwitterionic monomer (zwPip) was synthesized by sulfoalkylation of N-methyl-4-piperidone (Pip) using 1,4-butane sultone. Pip and zwPip were then employed in superacid-mediated polyhydroxyalkylations with p-terphenyl to prepare precursor copolymers containing 20, 30, and 40 mol % of zwPip units. Next, the Pip units were fully quaternized in a Menshutkin reaction with iodomethane. AEMs cast from these copolymers with ion-exchange capacities between 1.8 and 2.2 m equiv g–1 displayed excellent hydroxide ion conductivities, reaching up to... (More)
- A series of ether-free poly(p-terphenyl piperidinium)s carrying both cationic and zwitterionic groups were prepared and evaluated as anion-exchange membranes (AEMs). First, a zwitterionic monomer (zwPip) was synthesized by sulfoalkylation of N-methyl-4-piperidone (Pip) using 1,4-butane sultone. Pip and zwPip were then employed in superacid-mediated polyhydroxyalkylations with p-terphenyl to prepare precursor copolymers containing 20, 30, and 40 mol % of zwPip units. Next, the Pip units were fully quaternized in a Menshutkin reaction with iodomethane. AEMs cast from these copolymers with ion-exchange capacities between 1.8 and 2.2 m equiv g–1 displayed excellent hydroxide ion conductivities, reaching up to 171 mS cm–1 at 80 °C. At lower temperatures, 20 and 40 °C, the water uptake decreased with increasing zwitterionic content, most probably because of the increased ionic cross-linking through piperidinium–sulfonate complexes. AEMs containing 30 and 40% zwPip units showed only a minor ionic loss (<10%) when stored in 1 M aq NaOH solution at 80 °C over a period of 720 h. The overall results show that the co-introduction of zwitterionic and cationic groups is an efficient strategy to initiate ionic cross-linking and improve the performance of hydroxide-conducting AEMs. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/0c5b40f9-37e1-43d3-b013-29721cf6fdf9
- author
- Shirole, Anuja
LU
; Mansouri Bakvand, Pegah
LU
and Jannasch, Patric
LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- ACS Applied Energy Materials
- volume
- 6
- issue
- 13
- pages
- 10 pages
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- scopus:85164527232
- ISSN
- 2574-0962
- DOI
- 10.1021/acsaem.3c00953
- language
- English
- LU publication?
- yes
- id
- 0c5b40f9-37e1-43d3-b013-29721cf6fdf9
- date added to LUP
- 2023-02-12 23:56:35
- date last changed
- 2023-11-08 04:21:51
@article{0c5b40f9-37e1-43d3-b013-29721cf6fdf9,
abstract = {{A series of ether-free poly(<i>p</i>-terphenyl piperidinium)s carrying both cationic and zwitterionic groups were prepared and evaluated as anion-exchange membranes (AEMs). First, a zwitterionic monomer (zwPip) was synthesized by sulfoalkylation of <i>N</i>-methyl-4-piperidone (Pip) using 1,4-butane sultone. Pip and zwPip were then employed in superacid-mediated polyhydroxyalkylations with <i>p</i>-terphenyl to prepare precursor copolymers containing 20, 30, and 40 mol % of zwPip units. Next, the Pip units were fully quaternized in a Menshutkin reaction with iodomethane. AEMs cast from these copolymers with ion-exchange capacities between 1.8 and 2.2 m equiv g<sup>–1</sup> displayed excellent hydroxide ion conductivities, reaching up to 171 mS cm<sup>–1</sup> at 80 °C. At lower temperatures, 20 and 40 °C, the water uptake decreased with increasing zwitterionic content, most probably because of the increased ionic cross-linking through piperidinium–sulfonate complexes. AEMs containing 30 and 40% zwPip units showed only a minor ionic loss (<10%) when stored in 1 M aq NaOH solution at 80 °C over a period of 720 h. The overall results show that the co-introduction of zwitterionic and cationic groups is an efficient strategy to initiate ionic cross-linking and improve the performance of hydroxide-conducting AEMs.}},
author = {{Shirole, Anuja and Mansouri Bakvand, Pegah and Jannasch, Patric}},
issn = {{2574-0962}},
language = {{eng}},
number = {{13}},
pages = {{7240--7249}},
publisher = {{The American Chemical Society (ACS)}},
series = {{ACS Applied Energy Materials}},
title = {{Hydroxide Ion Conducting Membranes Dually Functionalized with Cationic and Zwitterionic Groups}},
url = {{http://dx.doi.org/10.1021/acsaem.3c00953}},
doi = {{10.1021/acsaem.3c00953}},
volume = {{6}},
year = {{2023}},
}