10. Long-Term SOFC Stability with Coated Ferritic Stainless Steel Interconnect

  1. Narottam P. Bansal
  1. S. P. Simner,
  2. M. D. Anderson,
  3. G-G Xia,
  4. Z. Yang and
  5. J. W. Stevenson

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291245.ch10

Advances in Solid Oxide Fuel Cells: Ceramic Engineering and Science Proceedings, Volume 26, Number 4

Advances in Solid Oxide Fuel Cells: Ceramic Engineering and Science Proceedings, Volume 26, Number 4

How to Cite

Simner, S. P., Anderson, M. D., Xia, G.-G., Yang, Z. and Stevenson, J. W. (2005) Long-Term SOFC Stability with Coated Ferritic Stainless Steel Interconnect, in Advances in Solid Oxide Fuel Cells: Ceramic Engineering and Science Proceedings, Volume 26, Number 4 (ed N. P. Bansal), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291245.ch10

Author Information

  1. Pacific Northwest National Laboratory Materials Science Division Richland, WA 99352

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2005

ISBN Information

Print ISBN: 9781574982343

Online ISBN: 9780470291245

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Keywords:

  • volatilization;
  • ambient;
  • electrochemical interface;
  • degradation mechanism

Summary

This study details long-term performance data for anode-supported thin-film YSZ-based SOFCs utilizing a ferritic stainless steel cathode current collector (Crofer22 APU) coated with a protective (Mn, Co)3O4 spinel to prevent Cr volatilization. Two standard cathode compositions, La(Sr)FeO3 and La(Sr)MnO3, were considered. The coating proved effective in blocking Cr migration, which resulted in long-term stability of the manganite cathode. In contrast the ferrite cathode indicated degradation that could not be attributed to Cr poisoning.