Abstract
The work studies a partial tungsten substitution for cobalt in the structure of nonstoichiometric SrCo0.8Fe0.2O3–δ (SCF) perovskite with mixed oxygen electron conductivity. It is shown that samples of the composition SrCo0.8–x Fe0.2W x O3–δ (SCFW) at x ≥ 0.03 undergo the endotaxial phase separation with the formation of nanosized domains with a structure of ordered Sr2CoWO6 double perovskite, which are distributed in the matrix of nonstoichiometric SrCo0.8–x Fe0.2W x O3–δ perovskite. For the materials with 0.02 < x < 0.1, a decrease in the oxygen stoichiometry is accompanied by nanostructuring of the matrix: the formation of nanosized domains in which oxygen vacancies are ordered with the formation of the brownmillerite-like structure.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
J. Sunarso, S. Baumann, J. M. Serra, et al., J. Membr. Sci., 320, 13 (2008).
Z. Shao, G. Xiong, J. Tong, et al., Sep. Purif. Technol., 25, 419 (2001).
I. A. Starkov, A. S. Kozhemyachenko, S. F. Bychkov, et al., Bull. Russ. Acad. Sci.: Phys., 74, 1059 (2010).
I. L. Zhogin, A. P. Nemudry, P. V. Glyanenko, et al., Catal. Today, 118, 151 (2006).
O. Savinskaya and A. Nemudry, J. Solid State Electrochem., 15, 269 (2011).
M. P. Popov, I. A. Starkov, S. F. Bychkov, et al., J. Membr. Sci., 469, 88 (2014).
E. V. Artimonova, O. A. Savinskaya, and A. P. Nemudry, Dokl. Phys. Chem., 465, 295 (2015).
O. A. Savinskaya, A. P. Nemudry, A. N. Nadeev, et al., Solid State Ionics, 179, 1076 (2008).
M. C. Viola, M. J. Martinez Lope, J. A. Alonso, et al., Chem. Mater., 15, 1655 (2003).
Q. Zhou, B. J. Kennedy, and M. M. Elcombe, J. Solid State Chem., 180, 541 (2007).
A. Demont, R. Sayers, and M. A. Tsiamtsouri, J. Am. Chem. Soc., 135, 10114 (2013).
H. Kruidhof, H. J. M. Bouwmeester, R. H. E. Doorn, et al., Solid State Ionics, 63–65, 816 (1993).
N. Nakayama, M. Takano, S. Inamura, et al., J. Solid State Chem., 71, 403 (1987).
F. Lindberg, G. Svensson, S. Ya. Istomin, et al., J. Solid State Chem., 177, 1592 (2004).
A. A. Markov, O. A. Savinskaya, M. V. Patrakeev, et al., Solid State Chem., 182, 799 (2009).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © 2015 E. V. Artimonova, O. A. Savinskaya, I. V. Belenkaya, A. P. Nemudry.
Translated from Zhurnal Strukturnoi Khimii, Vol. 56, No. 6, pp. 1165–1170, November–December, 2015.
Rights and permissions
About this article
Cite this article
Artimonova, E.V., Savinskaya, O.A., Belenkaya, I.V. et al. Study of the structural features of nonstoichiometric SrCo0.8–x Fe0.2W x O3–δ (0 < x < 0.1) perovskites. J Struct Chem 56, 1112–1117 (2015). https://doi.org/10.1134/S002247661506013X
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S002247661506013X