Performance Variability of La(Sr)FeO[sub 3] SOFC Cathode with Pt, Ag, and Au Current Collectors
| Autor: | S. P. Simner, M. D. Anderson, L. R. Pederson, J. W. Stevenson |
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| Rok vydání: | 2005 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Open-circuit voltage Analytical chemistry chemistry.chemical_element engineering.material Current collector Condensed Matter Physics Cathode Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention Direct energy conversion chemistry law Materials Chemistry Electrochemistry engineering Noble metal Transient (oscillation) Current (fluid) Platinum |
| Zdroj: | Journal of The Electrochemical Society. 152:A1851 |
| ISSN: | 0013-4651 |
| DOI: | 10.1149/1.1995687 |
| Popis: | This investigation details relatively short-term (500 hours) 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 (zero current). Three types of behavior were observed (1) decreased performance after OCV hold, (2) increased performance after OCV hold, and (3) 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. |
| Databáze: | OpenAIRE |
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