2021•Russian Journal of Inorganic ChemistryRequires access
Synthesis of Ba0.5Sr0.5Co0.8Fe0.2O3 – δ Oxide Promising as a Cathode Material of Modern Solid-Oxide Fuel Cells
T. L. Simonenko, Н. П. Симоненко, Е. П. Симоненко, V. G. Sevastyanov, Н. Т. Кузнецов
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Abstract
The solid solution Ba0.5Sr0.5Co0.8Fe0.2O3 – δ was synthesized by the glycol–citrate method. The thermal behavior of the obtained powder was studied by simultaneous thermal analysis in an air flow in the temperature range of 25–1200°C, and the conditions were determined for the heat treatment to obtain the oxide with a given cubic crystal structure of the perovskite type. The obtained powder was assayed and its phase composition and microstructure were investigated by a set of modern methods of physicochemical analysis (X-ray powder diffraction analysis, energy-dispersive X-ray spectroscopy, and IR spectroscopy). It was shown that the proposed synthesis method under the determined conditions is efficient for obtaining the single-phase oxide of the given composition without impurities.