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Double perovskite Ba2Bi0.1Sc0.2Co1.7O6−x (BBSC) demonstrates low polarization resistance between 600 and 750 °C due to the high oxygen reduction rate of BBSC as reflected by its large DV and k values, which are derived from the face centered cubic structure and high cobalt content.
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Zhou et al. (2010) studied this question.
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