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Sol-Gel SiO2-Polymer Hybrid Heteropoly Acid-Based Proton-Exchange Membranes

Published online by Cambridge University Press:  01 February 2011

F. John Pern ,
John A. Turner ,
Fanqin Meng  and
Andrew M. Herring
F. John Pern
Affiliation:
[email protected], National Renewable Energy Laboratory, 1617 Cole Blvd.,, Golden, Colorado, 80401, United States, 303-384-6615
John A. Turner
Affiliation:
[email protected], National Renewable Energy Laboratory, United States
Fanqin Meng
Affiliation:
[email protected], Colorado School of Mines
Andrew M. Herring
Affiliation:
[email protected], Colorado School of Mines
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Abstract

Heteropoly silicotungstic acid (STA)-based, cross-linked hybrid proton exchange membranes for intermediate-temperature (80°-120°C) fuel cell applications were fabricated by incorporating STA in a host matrix of binding silane, SiO2 sol gel, ethylene methacrylate copolymer containing glycidyl methacrylate groups (PMG), and molecular cross-linker. The STA loading level relative to the sum of the PMG and a cross-linker exceeded 100 weight%. Upon curing at 145° under pressure, the composite membranes were nearly 100% cross-linked and were flexible, showed high thermal and chemical stability against Fenton’s reagent, and exhibited a break-in behavior during cyclic voltammetric (CV) scans. The best proton conductivity, which was obtained from CV results, decreased from ∼8-15 mS/cm at 80°C and 100% relative humidity (RH), to ∼1.5 mS/cm at 100°C and 46% RH, and ∼0.25 mS/cm at 120°C and 23%RH.

Keywords

ion-exchange materialcompositefilm
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 885: Symposium A – The Hydrogen Cycle – Generation, Storage and Fuel Cells , 2005 , 0885-A01-10
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1. Wiesser, C., Fuel Cells 4, 245 (2004).Google Scholar
2. Curtin, D. E., Lousenberg, R. D., Henry, T. J., Tangeman, P. C., and Tisack, M.E., J. Power Sources 131, 41 (2004)Google Scholar
3. Hickner, M. A. and Pivovar, B. S., Fuel Cells 5, 213 (2005).Google Scholar
4. Kerres, J. A., Fuel Cells 5, 230 (2005).Google Scholar
5. Damay, F. and Klein, L.C., Solid State Ionics 162–163, 261 (2003).Google Scholar
6. Tian, H. and Savadogo, O., Fuel Cells 5, 375 (2005).Google Scholar
7. Schuster, M. F. H. and Meyer, W. H., Annu. Rev. Mater. Res. 33, 233 (2003).Google Scholar
8. Vakulenko, A., Dobrovolsky, Yu., Leonova, L., Karelin, A., Kolesnikova, A., and Bukun, N., Solid State Ionics 136–137, 285 (2000).Google Scholar
9. Alberti, G. and Casciola, M., Annu. Rev. Mater. Res. 33, 129 (2003).Google Scholar
10. Park, Y. and Nagai, M., Solid State Ionics 145, 149 (2001).Google Scholar
11. Pern, F. J., Turner, J. A., and Herring, A. M. in Nanostructured Materials in Alternative Energy Devices, edited by Kelder, Erik M., Leite, Edson Roberto, Tarascon, Jean-Marie, and Chiang, Yet-Ming (Mater. Res. Soc. Symp. Proc. 822, Warrendale, PA, 2004), pp. S.8.6.1 – S.8.6.6.Google Scholar
12. Tourne, C. M., Tourne, G. F., Malik, S. A., Weakley, T. J. R., Journal of Inorganic and Nuclear Chemistry 32, 3875 (1970).Google Scholar
13. Jeannin, Y. and Martin-Frere, J. in Inorganic Syntheses; edited by Ginsberg, A. P., John Wiley & sons, Vol. 27 (1990), pp. 111.Google Scholar
14. Healy, J., Hayden, C., Xie, T., Olson, K., Waldo, R., Brundage, M., Gasteiger, H., and Abbott, J., Fuel Cells 5, 302 (2005).Google Scholar
15. Gode, P., Ihonen, J., Strandroth, A., Ericson, H., Lindbergh, G., Paronen, M., Sundholm, F., Sundholm, G., and Walsby, N., Fuel Cells 3, 21 (2003).Google Scholar
16. Zhou, H., Miyatake, K., and Watanabe, M., Fuel Cells 5, 296 (2005).Google Scholar