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

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Дәйексөз келтіру

Толық мәтін

Аннотация

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.

Авторлар туралы

Marko Gongola

Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS

ORCID iD: 0000-0002-1320-5430
18, Kutateladze St., Novosibirsk, 630128

Stepan Vlasov

Novosibirsk State University

ORCID iD: 0009-0001-1032-0206
2 Pirogova St.

Mikhail Popov

Novosibirsk State University

ORCID iD: 0000-0002-9616-4063
2 Pirogova St.

Alexander Nemudry

Institute of Chemistry of a Solid body and Mechanochemistry of the Siberian Branch of RAS

ORCID iD: 0000-0003-3698-9124
18, Kutateladze St., Novosibirsk, 630128

Әдебиет тізімі

  1. Hussain S., Yangping L. Review of solid oxide fuel cell materials: Cathode, anode, and electrolyte. Energy Transit., 2020, vol. 4, no. 2, pp. 113–126. https://doi.org/10.1007/s41825-020-00029-8
  2. Ullmann H., Trofimenko N., Tietz F., Stöver D., Ahmad-Khanlou A. Correlation between thermal expansion and oxide ion transport in mixed conducting perovskite-type oxides for SOFC cathodes. Solid State Ion., 2000, vol. 138, no. 1, pp. 79–90. https://doi.org/10.1016/S0167-2738(00)00770-0
  3. Shah N., Xu X., Love J., Wang H., Zhu Z., Ge L. Mitigating thermal expansion effects in solid oxide fuel cell cathodes: A critical review. J. Power Sources, 2024, vol. 599, no. 234211. https://doi.org/10.1016/j.jpowsour.2024.234211
  4. Toby B. H. Von Dreele R. B. ıt GSAS-II: The genesis of a modern open-source all purpose crystallography software package. J. Appl. Crystallogr., 2013, vol. 46, no. 2, pp. 544–549. https://doi.org/10.1107/S0021889813003531
  5. Petrov A. N., Kononchuk O. F., Andreev A. V., Cherepanov V. A., Kofstad P. Crystal structure, electrical and magnetic properties of La1−xSrxCoO3−y. Solid State Ion., 1995, vol. 80, no. 3, pp. 189–199. https://doi.org/10.1016/0167-2738(95)00114-L
  6. Howard C. J., Stokes H. T. Structures and phase transitions in perovskites – a group-theoretical approach. Acta Crystallogr. Sect. A, 2005, vol. 61, no. 1, pp. 93– 111. https://doi.org/10.1107/S0108767304024493
  7. Tao S., Irvine J. T. S. Phase Transition in Perovskite Oxide La0.75Sr0.25Cr0.5Mn0.5O3−δ Observed by in Situ High-Temperature Neutron Powder Diffraction. Chem. Mater., 2006, vol. 18, no. 23, pp. 5453–5460. https://doi.org/10.1021/cm061413n
  8. Matsuda M., Ihara K., Miyake M. Influences of Ga doping on lattice parameter, microstructure, thermal expansion coefficient and electrical conductivity of La0.6Sr0.4CoO3−y. Solid State Ion., 2004, vol. 172, no. 1, pp. 57–61. https://doi.org/10.1016/j.ssi.2004.02.030
  9. Chen X., Yu J., Adler S. Thermal and Chemical Expansion of Sr-Doped Lanthanum Cobalt Oxide (La1−xSrxCoO3−δ). Chem. Mater., 2005, vol. 17, no. 17, pp. 4537–4546. https://doi.org/10.1021/cm050905h

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