Defect chemistry and electrical properties of La1-xSrxCoO3-δ |
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| Authors: | T Bak J Nowotny M Rekas S Ringer C C Sorrell |
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| Institution: | (1) Centre for Materials Research in Energy Conversion, School of Materials Science and Engineering, The University of New South Wales, 2052 Sydney, NSW, Australia;(2) Australian Key Centre for Microscopy and Microanalysis, University of Sydney, 2006, Australia |
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| Abstract: | This paper reports defect diagrams of Sr-doped lanthanum cobaltate, La1−xSrxCoO3−δ (LSC), involving both random defect model and the cluster defect model in the temperature range between 873 K and 1173 K.
The diagrams are derived in the form of defects concentrations as a function of oxygen partial pressure using the nonstoichiometry
data reported in the literature. The effect of the Sr content on defect structure of LSC is discussed in terms of both defect
models. |
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