This investigation details relatively short-term ( 500 h ) performance characteristics (in particular cathode conditioning and degradation) of anode-supported SOFCs utilizing La ( Sr ) Fe O 3 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.
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Simner et al. (2005) studied this question.
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