For citation:
Gongola M. I., Vlasov S. A., Popov M. P., Nemudry A. P. In situ high-temperature X-ray diffraction of La0.6Sr0.4Co1 – xMoxO3 – δ (x = 0.0–0.10) oxides used as cathodes for solid oxide fuel cells. Electrochemical Energetics, 2025, vol. 25, iss. 4, pp. 220-224. DOI: 10.18500/1608-4039-2025-25-4-220-224, EDN: YCGFFL
In situ high-temperature X-ray diffraction of La0.6Sr0.4Co1 – xMoxO3 – δ (x = 0.0–0.10) oxides used as cathodes for solid oxide fuel cells
The dependence of thermal expansion on the composition and atmosphere for molybdenumdoped lanthanum-strontium cobaltite La0.6Sr0.4Co1−xMoxO3−δ (х = 0–0.10) was studied by in situ hightemperature X-ray diffraction method (HTXRD). The linear coefficients of thermal expansion (CTE) were determined in air in the temperature range of 30–750°C. The linear dependence of the unit cell parameters on the molybdenum content was observed for the entire range of compositions, which obeys Vegard’s law and indicates the formation of solid solutions. The influence of the dopant concentration on the CTE value was analyzed.
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