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- W2028594385 abstract "This paper shows that measured impedance in porous (La0.6Sr0.4)0.99CoO3 − δ cathodes can be dependent on both gas diffusion and electrode kinetics at temperatures above 700 °C or below ambient pO2s if electrode kinetics are fast. The reaction mechanism is discussed on the basis of measured temperature- and pO2-dependences. The degradation was found to be related exclusively to the electrode kinetics and measured about 0.5–1.5 mΩ cm2 days− 1 depending on temperature with a higher rate measured in moisturised air. We speculate on degradation mechanism that involves formation of strontium hydroxides at catalytically active oxygen vacancy sites at the electrode surface." @default.
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- W2028594385 date "2008-09-30" @default.
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- W2028594385 title "Electrochemical performance and degradation of (La0.6Sr0.4)0.99CoO3−δ as porous SOFC-cathode" @default.
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- W2028594385 doi "https://doi.org/10.1016/j.ssi.2007.11.010" @default.
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