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Thermodynamically favourable reformer operating conditions

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
138 KB
Volume
2002
Category
Article
ISSN
1464-2859

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✦ Synopsis

The performance of Pt/YSZ and LSM/YSZ composite SOFC electrodes as a function of the electrode composition is investigated experimentally. The qualitative features of the impedance spectra are similar for both cathodes; in particular, in both the electrode performance shows a dome-shaped curve as a function of the electrode composition. Nevertheless, the quantitative aspects are very different; in particular, the electrode performance is much higher for the LSM/YSZ electrode than for Pt/YSZ. Also, the composition which gives the maximum performance and the experimental values of the percolation thresholds are different. The reasons for the discrepancies are analysed and discussed.

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