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Novel crosslinkers for high performance poly-AMPS-based proton exchange membranes for fuel cells

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2012
789.pdf (138.5Kb)
Authors
Kellner, Michael
Radovanović, Filip
Matović, Jovan
Liska, Robert
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Abstract
Polymer electrolyte fuel cells (PEFC) gained a lot of interest in recent years as a potential solution for an eco-friendly energy. Proton exchange membranes (PEM) are one of the main components of PEFCs and require mechanical and chemical stability to ensure high proton conductivity and effective separation of anode and cathode under challenging conditions. Best commercial membranes made from sulfonated fluoropolymers, such as Nafion®, are rather expensive. To improve fuel cell performance at a lower cost, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) was investigated recently. 1 Since polyAMPS (PAMPS) excessively swells or even dissolves in water, we investigated several commercial crosslinkers and new multifunctional monomers (Fig. 1) to decrease swelling by crosslinking. AMPS, crosslinker and photoinitiator were dissolved in water and N-methyl-2-pyrrolidone (NMP), respectively. To facilitate conductivity measurements and handling of crosslinked PAMPS formulations after UViniti...ated radical polymerization, they were constrained within a porous membrane using a procedure described by Zhou et al. 2 We tested several commercial crosslinkers and according to these results we developed new crosslinkers with enhanced hydrolytical stability and conductivity. In contrast to the commercial crosslinkers, where conductivity increased with increasing amount of crosslinker, our new acrylamide based crosslinkers needed only very low concentrations. They could achieve more than 2.5 times the conductivity of Nafion with only 5 wt% crosslinker. We used this novel crosslinkers to integrate them into asymmetric membranes with interpenetrating proton-conducting morphology for enhanced methanol barrier properties. 3 First results of their performance compared to Nafion will be presented. The research leading to these results has received funding from the European Community's FP7- NMP Programme, under the Project Acronym MultiPlat with Grant Agreement: N 228943 and the Austrian Federal Ministry of Science and Research. The authors would like to thank 3M for PP membrane samples and Ciba SC, Huntsman, Ivoclar Vivadent and Sartomer for samples of photoinitiator and crosslinker. 1 a) Qiao, J., et al., Journal of Materials Chemistry 2005, 15 (41), 4414-4423. b)Diao, H., et al., Macromolecules 43 (15), 6398-6405. 3 Zhou, J., et al., Journal of Membrane Science 2005, 254 (1-2), 89-99. 4 Radovanovic, P., et al., Journal of Membrane Science 2012, 401-402, 254-261.

Keywords:
polymer electrolyte fuel cells / crosslinkers / proton exchange membranes / fuel cells
Source:
European Symposium of Photopolymer Science - ESPS 2012, Torino, September 4th-7th 2012: Book of Abstracts, 2012
Funding / projects:
  • MULTIPLAT - Biomimetic Ultrathin Structures as a Multipurpose Platform for Nanotechnology-Based Products (EU-228943)
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_dais_792
URI
https://dais.sanu.ac.rs/123456789/792
Collections
  • Радови истраживача пре доласка у ИТН САНУ / Researchers' papers before joining ITS SASA
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - CONF
AU  - Kellner, Michael
AU  - Radovanović, Filip
AU  - Matović, Jovan
AU  - Liska, Robert
PY  - 2012
UR  - https://dais.sanu.ac.rs/123456789/792
AB  - Polymer electrolyte fuel cells (PEFC) gained a lot of interest in recent years as a potential solution for an eco-friendly energy. Proton exchange membranes (PEM) are one of the main components of PEFCs and require mechanical and chemical stability to ensure high proton conductivity and effective separation of anode and cathode under challenging conditions. Best commercial membranes made from sulfonated fluoropolymers, such as Nafion®, are rather expensive. To improve fuel cell performance at a lower cost, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) was investigated recently.
1 Since polyAMPS (PAMPS) excessively swells or even dissolves in water, we investigated several commercial crosslinkers and new multifunctional monomers (Fig. 1) to decrease swelling by crosslinking.
AMPS, crosslinker and photoinitiator were dissolved in water and N-methyl-2-pyrrolidone (NMP), respectively. To facilitate conductivity measurements and handling of crosslinked PAMPS formulations after UVinitiated radical polymerization, they were constrained within a porous membrane using a procedure described by Zhou et al.
2 We tested several commercial crosslinkers and according to these results we developed new crosslinkers with enhanced hydrolytical stability and conductivity. In contrast to the commercial crosslinkers, where conductivity increased with increasing amount of crosslinker, our new acrylamide based crosslinkers needed only very low concentrations. They could achieve more than 2.5 times the conductivity of Nafion with only 5 wt% crosslinker. We used this novel crosslinkers to integrate them into asymmetric membranes with interpenetrating proton-conducting morphology for enhanced methanol barrier properties.
3 First results of their performance compared to Nafion will be presented.
The research leading to these results has received funding from the European Community's FP7- NMP Programme, under the Project Acronym MultiPlat with Grant Agreement: N 228943 and the Austrian Federal Ministry of Science and Research. The authors would like to thank 3M for PP membrane samples and Ciba SC, Huntsman, Ivoclar Vivadent and Sartomer for samples of photoinitiator and crosslinker.

1 a) Qiao, J., et al., Journal of Materials Chemistry 2005, 15 (41), 4414-4423. b)Diao, H., et al., Macromolecules 43 (15), 6398-6405.
3 Zhou, J., et al., Journal of Membrane Science 2005, 254 (1-2), 89-99.
4 Radovanovic, P., et al., Journal of Membrane Science 2012, 401-402, 254-261.
C3  - European Symposium of Photopolymer Science - ESPS 2012, Torino, September 4th-7th 2012: Book of Abstracts
T1  - Novel crosslinkers for high performance poly-AMPS-based proton exchange membranes for fuel cells
UR  - https://hdl.handle.net/21.15107/rcub_dais_792
ER  - 
@conference{
author = "Kellner, Michael and Radovanović, Filip and Matović, Jovan and Liska, Robert",
year = "2012",
abstract = "Polymer electrolyte fuel cells (PEFC) gained a lot of interest in recent years as a potential solution for an eco-friendly energy. Proton exchange membranes (PEM) are one of the main components of PEFCs and require mechanical and chemical stability to ensure high proton conductivity and effective separation of anode and cathode under challenging conditions. Best commercial membranes made from sulfonated fluoropolymers, such as Nafion®, are rather expensive. To improve fuel cell performance at a lower cost, 2-acrylamido-2-methylpropane sulfonic acid (AMPS) was investigated recently.
1 Since polyAMPS (PAMPS) excessively swells or even dissolves in water, we investigated several commercial crosslinkers and new multifunctional monomers (Fig. 1) to decrease swelling by crosslinking.
AMPS, crosslinker and photoinitiator were dissolved in water and N-methyl-2-pyrrolidone (NMP), respectively. To facilitate conductivity measurements and handling of crosslinked PAMPS formulations after UVinitiated radical polymerization, they were constrained within a porous membrane using a procedure described by Zhou et al.
2 We tested several commercial crosslinkers and according to these results we developed new crosslinkers with enhanced hydrolytical stability and conductivity. In contrast to the commercial crosslinkers, where conductivity increased with increasing amount of crosslinker, our new acrylamide based crosslinkers needed only very low concentrations. They could achieve more than 2.5 times the conductivity of Nafion with only 5 wt% crosslinker. We used this novel crosslinkers to integrate them into asymmetric membranes with interpenetrating proton-conducting morphology for enhanced methanol barrier properties.
3 First results of their performance compared to Nafion will be presented.
The research leading to these results has received funding from the European Community's FP7- NMP Programme, under the Project Acronym MultiPlat with Grant Agreement: N 228943 and the Austrian Federal Ministry of Science and Research. The authors would like to thank 3M for PP membrane samples and Ciba SC, Huntsman, Ivoclar Vivadent and Sartomer for samples of photoinitiator and crosslinker.

1 a) Qiao, J., et al., Journal of Materials Chemistry 2005, 15 (41), 4414-4423. b)Diao, H., et al., Macromolecules 43 (15), 6398-6405.
3 Zhou, J., et al., Journal of Membrane Science 2005, 254 (1-2), 89-99.
4 Radovanovic, P., et al., Journal of Membrane Science 2012, 401-402, 254-261.",
journal = "European Symposium of Photopolymer Science - ESPS 2012, Torino, September 4th-7th 2012: Book of Abstracts",
title = "Novel crosslinkers for high performance poly-AMPS-based proton exchange membranes for fuel cells",
url = "https://hdl.handle.net/21.15107/rcub_dais_792"
}
Kellner, M., Radovanović, F., Matović, J.,& Liska, R.. (2012). Novel crosslinkers for high performance poly-AMPS-based proton exchange membranes for fuel cells. in European Symposium of Photopolymer Science - ESPS 2012, Torino, September 4th-7th 2012: Book of Abstracts.
https://hdl.handle.net/21.15107/rcub_dais_792
Kellner M, Radovanović F, Matović J, Liska R. Novel crosslinkers for high performance poly-AMPS-based proton exchange membranes for fuel cells. in European Symposium of Photopolymer Science - ESPS 2012, Torino, September 4th-7th 2012: Book of Abstracts. 2012;.
https://hdl.handle.net/21.15107/rcub_dais_792 .
Kellner, Michael, Radovanović, Filip, Matović, Jovan, Liska, Robert, "Novel crosslinkers for high performance poly-AMPS-based proton exchange membranes for fuel cells" in European Symposium of Photopolymer Science - ESPS 2012, Torino, September 4th-7th 2012: Book of Abstracts (2012),
https://hdl.handle.net/21.15107/rcub_dais_792 .

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