volume 225 pages 97-104

New complex bismuth oxides in the Bi2O3-NiO-Sb2O5 system and their properties

Publication typeJournal Article
Publication date2015-05-01
scimago Q2
wos Q1
SJR0.629
CiteScore6.8
Impact factor3.5
ISSN00224596, 1095726X
Materials Chemistry
Ceramics and Composites
Electronic, Optical and Magnetic Materials
Inorganic Chemistry
Physical and Theoretical Chemistry
Condensed Matter Physics
Abstract
Phase equilibria in the Bi2O3–NiO–Sb2O5 system have been investigated. The isothermal section of the system (650°) has been constructed. For the first time the existence of the pyrochlore structure solid solution, (Bi2−xNix)Ni2/3−ySb4/3+yO7±δ, x=0.1−0.35, y=0−0.1, and a new compound Bi3Ni2/3Sb7/3O11 of KSbO3 structure type have been discovered. The structures and properties of these compounds were studied by XRD, XAFS, diffuse reflection spectroscopy and magnetic methods. Rietveld refinement of synchrotron radiation-based powder XRD data for pyrochlore sample of 38.43Bi2O3–33.0NiO–28.57Sb2O5 composition and Bi3Ni2/3Sb7/3O11 compound was performed. The best possible refinement of the positional parameters for both pyrochlore and Bi3Ni2/3Sb7/3O11 structures was achieved for disordered models. Magnetic, diffuse reflection and an X-ray absorption spectroscopy study confirmed that in both compounds nickel ions are mainly in a 2+ oxidation state. According to magnetic data, Bi1.84Ni0.16(Ni0.63Sb1.37)O7 pyrochlore and Bi3Ni2/3Sb7/3O11 are overall paramagnetic in nature.
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Egorysheva A. et al. New complex bismuth oxides in the Bi2O3-NiO-Sb2O5 system and their properties // Journal of Solid State Chemistry. 2015. Vol. 225. pp. 97-104.
GOST all authors (up to 50) Copy
Egorysheva A., Ellert O., Zubavichus Y. V., Gajtko O. M., Efimov N. N., Svetogorov R., Murzin V. Yu. New complex bismuth oxides in the Bi2O3-NiO-Sb2O5 system and their properties // Journal of Solid State Chemistry. 2015. Vol. 225. pp. 97-104.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.jssc.2014.12.001
UR - https://doi.org/10.1016/j.jssc.2014.12.001
TI - New complex bismuth oxides in the Bi2O3-NiO-Sb2O5 system and their properties
T2 - Journal of Solid State Chemistry
AU - Egorysheva, Anna
AU - Ellert, O.G
AU - Zubavichus, Y V
AU - Gajtko, O M
AU - Efimov, Nikolay N.
AU - Svetogorov, Roman
AU - Murzin, V Yu
PY - 2015
DA - 2015/05/01
PB - Elsevier
SP - 97-104
VL - 225
SN - 0022-4596
SN - 1095-726X
ER -
BibTex
Cite this
BibTex (up to 50 authors) Copy
@article{2015_Egorysheva,
author = {Anna Egorysheva and O.G Ellert and Y V Zubavichus and O M Gajtko and Nikolay N. Efimov and Roman Svetogorov and V Yu Murzin},
title = {New complex bismuth oxides in the Bi2O3-NiO-Sb2O5 system and their properties},
journal = {Journal of Solid State Chemistry},
year = {2015},
volume = {225},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016/j.jssc.2014.12.001},
pages = {97--104},
doi = {10.1016/j.jssc.2014.12.001}
}