Journal of Materials Science

, Volume 36, Issue 23, pp 5719–5728

Porous Ni/TiO2 substrates for planar solid oxide fuel cell applications

Article

Abstract

Anode substrates based on Ni/TiO2 cermets were fabricated for planar solid oxide fuel cells (SOFCs) with the aim of reducing the material costs and preventing thermoelastic bending of the currently used Ni/8YSZ-based cells. Ni/TiO2 substrates were produced via sintering of NiO/NiTiO3 powder compacts and subsequent reduction. The sintering behavior in air and the resulting microstructure were studied in detail. Excellent electrical conductivity and gas permeability was achieved before and after reduction due to coarse microstructure. The co-firing behavior of substrates coated with an anode layer and an 8YSZ electrolyte membrane was analyzed with the aim of identifying those sintering schedules which give flat cells with a gastight electrolyte. Thermoelastic bending of cells is negligible since the thermal expansion coefficient is well adjusted to the 8YSZ electrolyte.

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References

  1. 1.
    H. P. Buchkremer, U. Diekmann, L. G. J. De Haart, H. Kabs, U. Stimming and D. StÖver, in Proceedings of the 5th Int. Symp. Solid Oxide Fuel Cells (SOFC-V), edited by U. Stimming, S. C. Singhal, H. Tagawa and W. Lehnert (The Electrochemical Society, Pennington, NJ, 1997) p. 160.Google Scholar
  2. 2.
    H. Arai, K. Eguchi, T. Setoguchi, R. Yamaguchi, K. Hashimoto and H. Yoshimura, in Proceedings of the 2nd Int. Symp. SOFC (SOFC-II), Athens, edited by F. Grosz, P. Zegers, S. C. Singhal and O. Yamamoto (Commission of the European Communities, Brussels, 1991) p. 167.Google Scholar
  3. 3.
    H. P. Buchkremer, U. Diekmann and D. StÖver, in Proceedings of the 2nd Eur. SOFC Forum, Oslo, edited by B. Thorstensen (The European Solid Oxide Fuel Cell Forum, Oberrohrdorf, Switzerland, 1996) p. 221.Google Scholar
  4. 4.
    D. Stolten, R. SpÄh and R. Schamm, in Proceedings of the 5th Int. Symp. Solid Oxide Fuel Cells (SOFC-V), edited by U. Stimming, S. C. Singhal, H. Tagawa and W. Lehnert (The Electrochemical Society, Pennington, NJ, 1997) p. 88.Google Scholar
  5. 5.
    R. WilkenhÖner, W. MallÉner, H.-P. Buchkremer, T H. Hauber and U. Stimming, in Proceedings of the 2nd Eur. SOFC Forum, Oslo, Vol. 2, edited by B. Thorstensen (The European Solid Oxide Fuel Cell Forum, Oberrohrdorf, Switzerland, 1996) p. 279.Google Scholar
  6. 6.
    M. Brown, S. Primdahl, M. Mogensen and N. M. Sammes, J. Australasian Ceram. Soc. 34 (1998) 248.Google Scholar
  7. 7.
    F. Tietz, F. J. Dias and A. Naoumidis, in Proceedings of the 3rd European Solid Oxide Fuel Cell Forum, Vol. 1, edited by P. Stevens (The European Solid Oxide Fuel Cell Forum, Oberrohrdorf, Switzerland, 1998) p. 171.Google Scholar
  8. 8.
    R. W. Steinbrech, A. Caron, G. Blaß and F. J. Dias, in Proceedings of the 5th Int. Symp. Solid Oxide Fuel Cells (SOFC-V), edited by U. Stimming, S. C. Singhal, H. Tagawa and W. Lehnert (The Electrochemical Society, Pennington, NJ, 1997) p. 727.Google Scholar
  9. 9.
    F. Meschke and R.W. Steinbrech, in Proceedings of the 6th Int. Symp. Solid Oxide Fuel Cells (SOFC-VI), edited by M. Dokiya and S. C. Singhal (The Electrochemical Society, Pennington, NJ, 1999) p. 1047.Google Scholar
  10. 10.
    J. P. Thomas, J. Appl. Phys. 41 (1970) 5104.Google Scholar
  11. 11.
    Y. S. Touloukian, R. K. Kirby, R. E. Taylor and T. Y. R. Lee, in “Thermophysical Properties of Matter,” Vol. 13: Thermal Expansion–Nonmetallic Solids (IFI/Plenum, New York, 1977).Google Scholar
  12. 12.
    R. Maenner, E. Ivers-TiffÉe, W. Wersing and W. Kleinlein, in Proceedings of the 2nd Eur. Ceram. Soc. Conf. (Euro-Ceramics II), edited by G. Ziegler and H. Hausner (Deutsche Keramische Gesellschaft, 1991) p. 2085.Google Scholar
  13. 13.
    F. Tietz, G. Stochniol and A. Naoumidis, in Proceedings of the 5th Eur. Conf. on Advanced Materials, Processes and Applications (Euromat' 97), Vol. 2, edited by L. A. J. L. Sarton and H. B. Zeedijk (Netherlands Society for Materials Science, 1997) p. 271.Google Scholar
  14. 14.
    F. Tietz, F. J. Dias, B. Dubiel and H. J. Penkalla, Mater. Sci. Eng. B B68 (1999) 35.Google Scholar
  15. 15.
    D. Simwonis, A. Naoumidis, F. J. Dias, J. Linke and A. Moropoulou, J. Mater. Res. 12 (1997) 1508.Google Scholar
  16. 16.
    D. Simwonis, F. J. Dias, A. Naoumidis and D._StÖver, in Proceedings of the 5th Eur. Conf. on Advanced Materials, Processes and Applications (Euromat' 97), Vol. 2, edited by L. A. J. L. Sarton and H. B. Zeedijk (Netherlands Society for Materials Science, 1997) p. 375.Google Scholar
  17. 17.
    R. FÖrthmann, G. Blass and H.-P. Buchkremer, in Proceedings of the 5th Int. Symp. Solid Oxide Fuel Cells (SOFC-V), edited by U. Stimming, S. C. Singhal, H. Tagawa and W. Lehnert (The Electrochemical Society, Pennington, NJ, 1997) p. 1003.Google Scholar
  18. 18.
    F. Tietz, in Proceedings of the 9th CIMTEC–World Ceramic Congress and Forum on New Materials, Vol. 24: Innovative Materials in Advanced Energy Technologies, edited by P. Vincenzini (Techna Publishers S.r.l., Faenza, Italy, 1999) p. 61.Google Scholar
  19. 19.
    D. Simwonis, G. Stathis, F. Tietz, R. W. Steinbrech and A. Naoumidis, Proceedings of the 3rd European Solid Oxide Fuel Cell Forum, Vol. 2, edited by P. Stevens (The European Solid Oxide Fuel Cell Forum, Oberrohrdorf, Switzerland, 1998) p. 219.Google Scholar
  20. 20.
    W. Laqua, E. W. Schulz and B. Reuter, Z. Anorg. Allg. Chem. 433 (1977) 167.Google Scholar
  21. 21.
    R. Vaßen, R. W. Steinbrech, F. Tietz and D. StÖver, Proceedings of the 3rd European Solid Oxide Fuel Cell Forum, Vol. 1, edited by P. Stevens (The European Solid Oxide Fuel Cell Forum, Oberrohrdorf, Switzerland, 1998) p. 557.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  1. 1.Forschungszentrum JülichInstitut für Werkstoffe und Verfahren der Energietechnik (IWV)JülichGermany

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