Bibliographic Details
| Title: |
Characterization of sulfonated poly(styrene-co-pyrrolidone) pore-filling membranes for fuel cell applications. |
| Authors: |
Seung-Hee Park1, Young-Woo Choi1 cozmoz67@kier.re.kr, Jin-Soo Park2 energy@smu.ac.kr |
| Source: |
Journal of Applied Electrochemistry. Jul2011, Vol. 41 Issue 7, p849-857. 9p. 1 Black and White Photograph, 1 Diagram, 1 Chart, 6 Graphs. |
| Subject Terms: |
*FUEL cells, *SULFONATED oils, *BENZENE, *POROUS materials, *STYRENE |
| Abstract: |
Pore-filling membranes using three monomers, i.e., styrene, N-vinyl pyrrolidone (VP), and divinylbenzene (DVB), are prepared for polymer electrolyte fuel cell (PEFC) applications. A porous polyethylene (PE) film substrate is used to enhance the dimensional stability of the prepared membranes. The proton conductivity and the water uptake of the styrene/VP/DVB membranes are similar to those of the styrene/DVB membranes, even though their ion exchange capacity is slightly lesser than that of the styrene/DVB membranes. Furthermore, the thermal stability of the styrene/VP/DVB membranes is higher than that of the styrene/DVB membranes, and, for the same DVB content, the membranes containing VP exhibit better oxidative stability. VP increases the membrane's water-absorbing ability due to its intrinsic hydrophilic property and decreases weak α-hydrogen derived from the sulfonated styrene. Finally, the membrane-electrode assembly (MEA) using the 80/10/10 (Styrene/VP/DVB in weight percentage) membrane shows better performance than that using the 90/0/10 membrane. [ABSTRACT FROM AUTHOR] |
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| Database: |
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