Standard Article

Durability of cathodes including Cr poisoning

Advances in Electrocatalysis, Materials, Diagnostics and Durability

Materials for high temperature fuel cells

Materials durability

  1. N. H. Menzler,
  2. A. Mai,
  3. D. Stöver

Published Online: 15 DEC 2010

DOI: 10.1002/9780470974001.f500038

Handbook of Fuel Cells

Handbook of Fuel Cells

How to Cite

Menzler, N. H., Mai, A. and Stöver, D. 2010. Durability of cathodes including Cr poisoning. Handbook of Fuel Cells. .

Author Information

  1. Institute of Energy Research, Jülich, Germany

Publication History

  1. Published Online: 15 DEC 2010

Abstract

This article deals with the durability of solid oxide fuel cell (SOFC) cathodes, especially perovskites of the lanthanum–strontium–manganite (LSM) and lanthanum–strontium–cobalt–ferrite (LSCF) types. Both cathode materials were characterized with respect to either the intrinsic degradation behavior depending on, for example, time, temperature, current density, chemical composition, or the influence of the gaseous chromium species that originate from the oxide layer on the metallic interconnects. Results are presented for single-cell tests and stack tests. Additionally, in the sections describing the influence of Cr on cathode degradation, some basic results are presented on the interaction of single oxides or oxide mixtures with chromium-containing atmospheres.

Keywords:

  • durability;
  • cathode;
  • degradation;
  • chromium poisoning;
  • LSM;
  • LSCF