15. Chromium Poisoning Effects on Various Cathodes

  1. Narottam P. Bansal
  1. Jin Yong Kim,
  2. Nathan L. Canfield,
  3. Larry A. Chick,
  4. Kerry D. Meinhardt and
  5. Vince L. Sprenkle

Published Online: 26 MAR 2008

DOI: 10.1002/9780470291245.ch15

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

Kim, J. Y., Canfield, N. L., Chick, L. A., Meinhardt, K. D. and Sprenkle, V. L. (2005) Chromium Poisoning Effects on Various Cathodes, 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.ch15

Author Information

  1. Pacific Northwest National Laboratory 902 Battelle Blvd, PO Box 999 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

SEARCH

Keywords:

  • fabrication techniques;
  • interconnects;
  • electrolyWanode;
  • electrochemical properties;
  • scanning electron microscope

Summary

Progress in materials and fabrication techniques has allowed the reduction in the operating temperature of solid oxide fuel cells (SOFCs) to an intermediate range (650∼800°C). In this temperature range, oxidation-resistant high-temperature alloys are used for interconnect materials. Chromia-forming ferritic stainless steels are the most promising and widely used oxidation-resistant alloys due to their appropriate thermal expansion behaviors, electrically conducting oxide scale, and low costs. However, the application of chromia-forming alloys for SOFC interconnects has been largely limited by the evaporation of chromium species from their oxide scale, which leads to degradation of cell performance. In this study, we report effects of Cr poisoning on the performance of various cathodes used for intermediate temperature solid oxide fuel cells (IT-SOFCs).