Performance variability of La(Sr)FeO3 SOFC cathode with Pt, Ag, and Au current collectors

S. P. Simner, M. D. Anderson, L. R. Pederson, J. W. Stevenson

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

This investigation details relatively short-term (500 h) performance characteristics (in particular cathode conditioning and degradation) of anode-supported SOFCs utilizing La(Sr)FeO3 cathodes with platinum, silver, or gold current collectors. Conditioning or degradation characteristics were found to be highly dependant on the current collector used. An additional area of study considered transient cell behavior following rest periods at open-circuit voltage (OCV, zero current). Three types of behavior were observed; (i) decreased performance after OCV hold, (ii) increased performance after OCV hold, and (iii) no discernible change. The type of transient behavior was found to be dependent on the noble metal current collector utilized and the time at which the transient behavior was assessed. Longer testing times indicated more pronounced transient characteristics.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume152
Issue number9
DOIs
Publication statusPublished - 2005
Externally publishedYes

Fingerprint

Solid oxide fuel cells (SOFC)
accumulators
Cathodes
cathodes
conditioning
testing time
degradation
Degradation
Open circuit voltage
Precious metals
Platinum
open circuit voltage
noble metals
Silver
Gold
Anodes
platinum
anodes
silver
gold

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Performance variability of La(Sr)FeO3 SOFC cathode with Pt, Ag, and Au current collectors. / Simner, S. P.; Anderson, M. D.; Pederson, L. R.; Stevenson, J. W.

In: Journal of the Electrochemical Society, Vol. 152, No. 9, 2005.

Research output: Contribution to journalArticle

Simner, S. P. ; Anderson, M. D. ; Pederson, L. R. ; Stevenson, J. W. / Performance variability of La(Sr)FeO3 SOFC cathode with Pt, Ag, and Au current collectors. In: Journal of the Electrochemical Society. 2005 ; Vol. 152, No. 9.
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