Photocurable Poly-AMPS-Based Proton Exchange Membranes For Fuel Cells
Abstract
Proton exchange membranes (PEM) for low temperature fuel cells must ensure high proton conductivity and effective separation of anode and cathode under operating conditions. DuPont’s sulfonic acid fluoropolymer Nafion has seen commercial success, though high cost limits wider acceptance. As lower cost options, polymers based on 2-acrylamido-2-methylpropane sulfonic acid (AMPS) are also investigated. Swelling of polyAMPS (PAMPS) is however a shortcoming, although this may be reduced by improved crosslinking. Both commercial and novel crosslinkers were tested with AMPS by dissolving with photoinitiator in water and photo-curing. To facilitate conductivity measurements, polymers were constrained within a porous membrane. In contrast to commercial crosslinkers, where high percentages are required to improve conductivity, our new acrylamide based crosslinkers showed excellent results at lower concentrations. Thus 5 wt% crosslinker provided membranes with 2.5 times the conductivity of Nafion.... The novel polymers were then coated onto asymmetric membranes increasing proton-conductivity and reducing methanol crossover.
Keywords:
proton exchange membranes / 2-acrylamido-2-methylpropane sulfonic acid / fuel cellsSource:
RadTech Europe 13: UV/EB – Growing through Innovation, October 15-17, 2013 in Basel, Switzerland: abstract book, 2013, 88-88Publisher:
- Basel : RadTech Europe
Funding / projects:
- MULTIPLAT - Biomimetic Ultrathin Structures as a Multipurpose Platform for Nanotechnology-Based Products (EU-228943)
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Ligon, Samuel AU - Kellner, Michael AU - Radovanović, Filip AU - Matović, Jovan AU - Liska, Robert PY - 2013 UR - https://dais.sanu.ac.rs/123456789/813 AB - Proton exchange membranes (PEM) for low temperature fuel cells must ensure high proton conductivity and effective separation of anode and cathode under operating conditions. DuPont’s sulfonic acid fluoropolymer Nafion has seen commercial success, though high cost limits wider acceptance. As lower cost options, polymers based on 2-acrylamido-2-methylpropane sulfonic acid (AMPS) are also investigated. Swelling of polyAMPS (PAMPS) is however a shortcoming, although this may be reduced by improved crosslinking. Both commercial and novel crosslinkers were tested with AMPS by dissolving with photoinitiator in water and photo-curing. To facilitate conductivity measurements, polymers were constrained within a porous membrane. In contrast to commercial crosslinkers, where high percentages are required to improve conductivity, our new acrylamide based crosslinkers showed excellent results at lower concentrations. Thus 5 wt% crosslinker provided membranes with 2.5 times the conductivity of Nafion. The novel polymers were then coated onto asymmetric membranes increasing proton-conductivity and reducing methanol crossover. PB - Basel : RadTech Europe C3 - RadTech Europe 13: UV/EB – Growing through Innovation, October 15-17, 2013 in Basel, Switzerland: abstract book T1 - Photocurable Poly-AMPS-Based Proton Exchange Membranes For Fuel Cells SP - 88 EP - 88 UR - https://hdl.handle.net/21.15107/rcub_dais_813 ER -
@conference{ author = "Ligon, Samuel and Kellner, Michael and Radovanović, Filip and Matović, Jovan and Liska, Robert", year = "2013", abstract = "Proton exchange membranes (PEM) for low temperature fuel cells must ensure high proton conductivity and effective separation of anode and cathode under operating conditions. DuPont’s sulfonic acid fluoropolymer Nafion has seen commercial success, though high cost limits wider acceptance. As lower cost options, polymers based on 2-acrylamido-2-methylpropane sulfonic acid (AMPS) are also investigated. Swelling of polyAMPS (PAMPS) is however a shortcoming, although this may be reduced by improved crosslinking. Both commercial and novel crosslinkers were tested with AMPS by dissolving with photoinitiator in water and photo-curing. To facilitate conductivity measurements, polymers were constrained within a porous membrane. In contrast to commercial crosslinkers, where high percentages are required to improve conductivity, our new acrylamide based crosslinkers showed excellent results at lower concentrations. Thus 5 wt% crosslinker provided membranes with 2.5 times the conductivity of Nafion. The novel polymers were then coated onto asymmetric membranes increasing proton-conductivity and reducing methanol crossover.", publisher = "Basel : RadTech Europe", journal = "RadTech Europe 13: UV/EB – Growing through Innovation, October 15-17, 2013 in Basel, Switzerland: abstract book", title = "Photocurable Poly-AMPS-Based Proton Exchange Membranes For Fuel Cells", pages = "88-88", url = "https://hdl.handle.net/21.15107/rcub_dais_813" }
Ligon, S., Kellner, M., Radovanović, F., Matović, J.,& Liska, R.. (2013). Photocurable Poly-AMPS-Based Proton Exchange Membranes For Fuel Cells. in RadTech Europe 13: UV/EB – Growing through Innovation, October 15-17, 2013 in Basel, Switzerland: abstract book Basel : RadTech Europe., 88-88. https://hdl.handle.net/21.15107/rcub_dais_813
Ligon S, Kellner M, Radovanović F, Matović J, Liska R. Photocurable Poly-AMPS-Based Proton Exchange Membranes For Fuel Cells. in RadTech Europe 13: UV/EB – Growing through Innovation, October 15-17, 2013 in Basel, Switzerland: abstract book. 2013;:88-88. https://hdl.handle.net/21.15107/rcub_dais_813 .
Ligon, Samuel, Kellner, Michael, Radovanović, Filip, Matović, Jovan, Liska, Robert, "Photocurable Poly-AMPS-Based Proton Exchange Membranes For Fuel Cells" in RadTech Europe 13: UV/EB – Growing through Innovation, October 15-17, 2013 in Basel, Switzerland: abstract book (2013):88-88, https://hdl.handle.net/21.15107/rcub_dais_813 .