Hostname: page-component-848d4c4894-nmvwc Total loading time: 0 Render date: 2024-06-29T22:46:57.660Z Has data issue: false hasContentIssue false
  • English
  • Français

Characterization and Fuel Cell Testing of Radiation-Grafted Psi Membranes

Published online by Cambridge University Press:  10 February 2011

H.-P. Brack ,
M. M. Koebel ,
A. Tsukada ,
J. Huslage ,
F. Buechi ,
F. Geiger ,
M Rota  and
G. G. Scherer
H.-P. Brack
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
M. M. Koebel
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
A. Tsukada
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
J. Huslage
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
F. Buechi
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
F. Geiger
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
M Rota
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
G. G. Scherer
Affiliation:
Electrochemistry Section, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
Get access

Abstract

We have demonstrated earlier the useful performance of our PSI radiation-grafted membranes in terms of the current-voltage characteristics of 30 cm2 active area fuel cells containing these membranes and their long-term testing over 6,000 h at 60 °C. We report here on testing of PSI radiation-grafted membranes in these fuel cells at 80 °C and in short stacks comprised of two or four 100 cm2 active area cells. The in-situ degradation of membranes has been investigated by characterizing membranes both before testing in fuel cells and post-mortem after testing in fuel cells. Characterization was accomplished by means of ion-exchange capacity and infrared and Raman spectroscopic measurements. In addition, a rapid screening method for our ex-situ testing of the oxidative stability of proton-conducting membranes was developed in this work. Comparison of the initial screening test results concerning the oxidative stability of some perfluorinated, partially-fluorinated, and non-fluorinated membranes compare well qualitatively with the relative stability of these same membranes during their long-term testing in fuel cells.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 575: Symposium CC – New Materials for Batteries & Fuel Cells , 1999 , 259
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Brack, H.P., Büchi, F.N., Huslage, J., and Scherer, G.G., Proceedings Paper, 194th ECS Meeting, Nov. 1–6, 1998, Boston, MA, USA, abstract Nr. 1105.Google Scholar
2. Tsukada, A., Popelis, I., Büchi, F.N., Scherer, G.G., Haas, O., in Paul Scherrer Institut, Annual Report 1997, Annex V, General Energy Research, p. 52.Google Scholar
3. Rota, M., Pasler, V., Büchi, F.N., Scherer, G.G., in Paul Scherrer Institut, Annual Report 1995, Annex V, General Energy Research, p. 19.Google Scholar
4. Brack, H.-P. and Scherer, G.G., Macromol. Symp. 126, p. 25 (1997).Google Scholar
5. Büchi, F.N. and Scherer, G.G., Proceedings Paper, 194th ECS Meeting, Nov. 1–6, 1998, Boston, MA, USA, abstract Nr. 1106.Google Scholar
6. Brack, H.P., BUchi, F.N., Huslage, J., Rota, M., and Scherer, G.G., in Membrane Formation and Modification, edited by Pinnau, I. and Freeman, B., ACS Symposium Series, in press (ACS National Meeting, Las Vegas, NV, Sept. 7–11, 1997); ACS PMSE 77, p. 368 (1997).Google Scholar
7. Goldring, L.S., in The Theory and Practice of Ion-Exchange, edited by Streat, M., University of Cambridge, 25th-30th July, 1976, Society of Chemical Industry, London, 1976, p. 7.1.Google Scholar
8. LaConti, A.B., Fragala, A.R., Boyack, J.R., in Proceedings of the Symposium on Electrode Materials and Processes for Energy Conversion and Storage, edited by McIntyre, J.D.E., Srinivasan, S., Will, F.G., Proc. Vol. 77–6, Electrochemical Society, Princeton, NJ, 1977, p. 354.Google Scholar
9. Guzman-Garcia, A.G., Pintauro, P.N., Verbrugge, M.W., Schneider, E.W., J. Appl. Electrochem. 22, p. 204 (1992).Google Scholar
10. Wang, H., Capuano, G.A., J. Electrochem. Soc. 145 (3), p. 780 (1998).Google Scholar
11. Büchi, F.N., Gupta, B., Haas, O., Scherer, G.G., J. Electrochem. Soc., 142, p. 3044 (1995).Google Scholar
12. Büchi, F.N., Gupta, B., Scherer, G.G., European Patent 0667983 (1999).Google Scholar
13. Büchi, F.N., Marek, A., Scherer, G.G., J. Electrochem. Soc. 142 (6), p. 1895 (1995).Google Scholar
14. For example, technical documentation E-MPDT-005 B on TIMREX KS 44 graphite from TIMCAL AG, CH-5643 Sins, SwitzerlandGoogle Scholar
15. Huslage, J., Brack, H.P., Büchi, F.N., Scherer, G.G., unpublished results.Google Scholar
16. Scherer, G.G., Brack, H.-P., F.N. Büchi, Gupta, B., Haas, O., Rota, M., in Hydrogen Energy Progress XI, Proceedings of the 11th World Hydrogen Energy Conference, edited by Veziroglu, T.N., C.-J., Winter, Baselt, J.P., Kreysa, G., Stuttgart, Germany, June 23–28, 1996, Vol. 2, p. 1727.Google Scholar
17. Büchi, F.N., Gupta, B., Haas, O., Scherer, G.G., Electrochimica Acta, 40 (3), p. 345 (1995).Google Scholar