Mixed conducting molybdenum doped BSCF materials

This work discusses the effect of partial substitution of cobalt in Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) by Mo (VI) cations on the crystal structure, microstructure and transport properties of doped materials. Ba0.5Sr0.5Co0.8−xMoxFe0.2O3−δ (BSCFMx) samples possess specific microstructure consisting of do...

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Bibliographic Details
Published in:Journal of industrial and engineering chemistry (Seoul, Korea) 2018, 59(0), , pp.242-250
Main Authors: E.V. Shubnikova, O.A. Bragina, A.P. Nemudry
Format: Article
Language:English
Subjects:
화학공학
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Summary:This work discusses the effect of partial substitution of cobalt in Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) by Mo (VI) cations on the crystal structure, microstructure and transport properties of doped materials. Ba0.5Sr0.5Co0.8−xMoxFe0.2O3−δ (BSCFMx) samples possess specific microstructure consisting of double perovskite domains distributed in the cubic perovskite matrix that results in the suppression of undesirable «cubic–hexagonal» phase transition at x ≥ 0.02. Doped BSCFMx perovskites demonstrate high oxygen permeability, improved CO2 tolerance, enhanced electrical conductivity and chemical compatibility with Ce0.8Gd0.2O2-δ electrolyte that allows to consider them as promising candidates both for oxygen transport membranes and cathodes for intermediate temperature SOFC. KCI Citation Count: 18
ISSN:1226-086X
1876-794X
DOI:10.1016/j.jiec.2017.10.032