Novel cross-linkers for asymmetric poly-AMPS-based proton exchange membranes for fuel cells
Abstract
Polymer electrolyte fuel cells (PEFCs) are an ideal solution leading to clean energy by directly converting the fuel’s chemical energy to electricity in order to achieve high degree of efficiency. One of the main components of PEFCs is the proton exchange membrane which should conduct protons but no electrons and should also separate the electrodes and limit fuel crossover. In addition to Nafion®, polymers of 2-acrylamido-2-methylpropane sulfonic acid (AMPS) have been used as a proton-conducting ionomer since sulfonic groups are known for their good proton conductivity. Since poly-AMPS excessively swells or even dissolve in water, we investigated several commercial cross-linkers and new multifunctional monomers to decrease swelling by cross-linking. Formulations with different concentrations of these cross-linkers have been tested constrained in porous polypropylene membranes. Although formulations with commercial cross-linkers (polyethylene glycol diacrylates) already exceeded the con...ductivity of Nafion®, with some of the synthesized cross-linkers we achieved more than 2.5 times the conductivity of Nafion®. Moreover, the novel amide-based cross-linkers show good hydrolytical stability in contrast to the commercial ones. Finally, we used one of the new cross-linkers to prepare asymmetric membranes and could achieve about 8 times the conductivity of Nafion.
Keywords:
proton exchange membrane / proton conductivity / fuel cell / hydrolytic stability / Nafion®Source:
Designed Monomers and Polymers, 2013, 17, 4, 372-379Publisher:
- Taylor & Francis Group
Funding / projects:
- MULTIPLAT - Biomimetic Ultrathin Structures as a Multipurpose Platform for Nanotechnology-Based Products (EU-228943)
Note:
- Free full text: https://doi.org/10.1080/15685551.2013.840513
DOI: 10.1080/15685551.2013.840513
ISSN: 1568-5551 (Online)
WoS: 000326349900008
Scopus: 2-s2.0-84887461430
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Kellner, Michael AU - Radovanović, Filip AU - Matović, Jovan AU - Liska, Robert PY - 2013 UR - https://dais.sanu.ac.rs/123456789/771 AB - Polymer electrolyte fuel cells (PEFCs) are an ideal solution leading to clean energy by directly converting the fuel’s chemical energy to electricity in order to achieve high degree of efficiency. One of the main components of PEFCs is the proton exchange membrane which should conduct protons but no electrons and should also separate the electrodes and limit fuel crossover. In addition to Nafion®, polymers of 2-acrylamido-2-methylpropane sulfonic acid (AMPS) have been used as a proton-conducting ionomer since sulfonic groups are known for their good proton conductivity. Since poly-AMPS excessively swells or even dissolve in water, we investigated several commercial cross-linkers and new multifunctional monomers to decrease swelling by cross-linking. Formulations with different concentrations of these cross-linkers have been tested constrained in porous polypropylene membranes. Although formulations with commercial cross-linkers (polyethylene glycol diacrylates) already exceeded the conductivity of Nafion®, with some of the synthesized cross-linkers we achieved more than 2.5 times the conductivity of Nafion®. Moreover, the novel amide-based cross-linkers show good hydrolytical stability in contrast to the commercial ones. Finally, we used one of the new cross-linkers to prepare asymmetric membranes and could achieve about 8 times the conductivity of Nafion. PB - Taylor & Francis Group T2 - Designed Monomers and Polymers T1 - Novel cross-linkers for asymmetric poly-AMPS-based proton exchange membranes for fuel cells SP - 372 EP - 379 VL - 17 IS - 4 DO - 10.1080/15685551.2013.840513 UR - https://hdl.handle.net/21.15107/rcub_dais_771 ER -
@article{ author = "Kellner, Michael and Radovanović, Filip and Matović, Jovan and Liska, Robert", year = "2013", abstract = "Polymer electrolyte fuel cells (PEFCs) are an ideal solution leading to clean energy by directly converting the fuel’s chemical energy to electricity in order to achieve high degree of efficiency. One of the main components of PEFCs is the proton exchange membrane which should conduct protons but no electrons and should also separate the electrodes and limit fuel crossover. In addition to Nafion®, polymers of 2-acrylamido-2-methylpropane sulfonic acid (AMPS) have been used as a proton-conducting ionomer since sulfonic groups are known for their good proton conductivity. Since poly-AMPS excessively swells or even dissolve in water, we investigated several commercial cross-linkers and new multifunctional monomers to decrease swelling by cross-linking. Formulations with different concentrations of these cross-linkers have been tested constrained in porous polypropylene membranes. Although formulations with commercial cross-linkers (polyethylene glycol diacrylates) already exceeded the conductivity of Nafion®, with some of the synthesized cross-linkers we achieved more than 2.5 times the conductivity of Nafion®. Moreover, the novel amide-based cross-linkers show good hydrolytical stability in contrast to the commercial ones. Finally, we used one of the new cross-linkers to prepare asymmetric membranes and could achieve about 8 times the conductivity of Nafion.", publisher = "Taylor & Francis Group", journal = "Designed Monomers and Polymers", title = "Novel cross-linkers for asymmetric poly-AMPS-based proton exchange membranes for fuel cells", pages = "372-379", volume = "17", number = "4", doi = "10.1080/15685551.2013.840513", url = "https://hdl.handle.net/21.15107/rcub_dais_771" }
Kellner, M., Radovanović, F., Matović, J.,& Liska, R.. (2013). Novel cross-linkers for asymmetric poly-AMPS-based proton exchange membranes for fuel cells. in Designed Monomers and Polymers Taylor & Francis Group., 17(4), 372-379. https://doi.org/10.1080/15685551.2013.840513 https://hdl.handle.net/21.15107/rcub_dais_771
Kellner M, Radovanović F, Matović J, Liska R. Novel cross-linkers for asymmetric poly-AMPS-based proton exchange membranes for fuel cells. in Designed Monomers and Polymers. 2013;17(4):372-379. doi:10.1080/15685551.2013.840513 https://hdl.handle.net/21.15107/rcub_dais_771 .
Kellner, Michael, Radovanović, Filip, Matović, Jovan, Liska, Robert, "Novel cross-linkers for asymmetric poly-AMPS-based proton exchange membranes for fuel cells" in Designed Monomers and Polymers, 17, no. 4 (2013):372-379, https://doi.org/10.1080/15685551.2013.840513 ., https://hdl.handle.net/21.15107/rcub_dais_771 .