Oxygen content and thermodynamic stability of YBaCo4O7 ± δ / Tsvetkov D.S., Pralong V., Tsvetkova N.S., Zuev A.Y. // Solid State Ionics. - 2015. - V. 278, l. . - P. 1-4.

ISSN:

01672738

Type:

Article

Abstract:

Abstract YBaCo4O7 ± δ was found to be thermodynamically stable in air at T > 900 °C whereas its thermodynamic stability at 950 °C is limited by the range of oxygen partial pressures - 5.05 ≤ log(pO2/atm) ≤ - 0.5. Oxygen content in YBaCo4O7 ± δ at 950 °C slightly decreases from 7.009 at log(pO2/atm) = - 0.5 to 6.953 in the atmosphere with log(pO2/atm) = - 5.05. YBaCo4O7 ± δ decomposes into the mixture of YCoO3-δ, BaCoO3-δ and Co3O4 at 950 °C in atmosphere with log(pO2/atm) > - 0.5 whereas in atmosphere with log(pO2/atm) < - 5.05 Y2BaCoO5, BaCoO2 and CoO were identified as the products of YBaCo4O7 ± δ decomposition. © 2015 Elsevier B.V.

Author keywords:

114; Oxygen content; Thermodynamic stability; YBaCo4O7

Index keywords:

Cobalt compounds; Oxygen; Thermodynamics; 114; Oxygen content; Oxygen partial pressure; Thermodynamically stable; Thermodynamic stability

DOI:

10.1016/j.ssi.2015.05.004

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929650571&doi=10.1016%2fj.ssi.2015.05.004&partnerID=40&md5=18d362592ee3484d79097671f9aab255

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Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929650571&doi=10.1016%2fj.ssi.2015.05.004&partnerID=40&md5=18d362592ee3484d79097671f9aab255
Affiliations	Department of Chemistry, Institute of Natural Sciences, Ural Federal University, Ekaterinburg, Russian Federation; CRISMAT laboratory, University of Caen, CNRS ENSICAEN, Caen, France
Author Keywords	114; Oxygen content; Thermodynamic stability; YBaCo4O7
Funding Details	13-03-01031, RFBR, Russian Foundation for Basic Research
References	Tsipis, E.V., Kharton, V.V., Frade, J.R., (2006) Solid State Ionics, 177, p. 1823; Karppinen, M., Yamauchi, H., Otani, S., Fujita, T., Motohashi, T., Huang, Y.-H., Valkeapää, M., Fjellvåg, H., (2006) Chem. Mater., 18, p. 490; Chmaissem, O., Zheng, H., Huq, A., Stephens, P.W., Mitchell, J.F., (2008) J. Solid State Chem., 181, p. 664; Zhu, B., Hao, H.S., Zhang, Y., Jia, J., Hu, X., (2010) J. Rare Earths, 28, p. 84; Maignan, A., Hébert, S., Caignaert, V., Pralong, V., Pelloquin, D., (2008) Solid State Commun., 147, p. 470; Hao, H.S., Cui, J.H., Chen, C.Q., Pan, L.J., Hu, J., Hu, X., (2006) Solid State Ionics, 177, p. 631; Tsvetkov, D.S., Sereda, V.V., Zuev, A.Yu., (2010) Solid State Ionics, 180, p. 1620; Tsipis, E.V., Khalyavin, D.D., Shiryaev, S.V., Redkina, K.S., Núñez, P., (2006) Mater. Chem. Phys., 92, p. 33; Rabbow, C., Muller-Buschbaum, H.Z., (1994) Anorg. Allg. Chem., 620, p. 527; Tsipis, E.V., Khalyavin, D.D., Shiryaev, S.V., Redkina, K.S., Núñez, P., (2006) Mater. Chem. Phys., 92, p. 33; Rabbow, C., Muller-Buschbaum, H.Z., (1994) Anorg. Allg. Chem., 620, p. 527; Avci, S., Chmaissem, O., Zheng, H., Huq, A., Manuel, P., Mitchell, J.F., (2013) Chem. Mater., 25, pp. 4188-4196; Parkkima, O., Karppinen, M., (2014) Eur. J. Inorg. Chem., 4056-4067
Correspondence Address	Tsvetkov, D.S.; Department of Chemistry, Institute of Natural Sciences, Ural Federal UniversityRussian Federation
Publisher	Elsevier
CODEN	SSIOD
Language of Original Document	English
Abbreviated Source Title	Solid State Ionics
Source	Scopus