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On the Non-Stoichiometry in Rutile-Type »SbVO4

Landa-Cánovas, A ; Nilsson, J ; Hansen, Staffan LU ; Ståhl, K and Andersson, Arne LU (1995) In Journal of Solid State Chemistry 116(2). p.369-377
Abstract
Heating equimolar mixtures of Sb2O3 and V2O5 at 800 degrees C in flowing gas with varying O-2/N-2 ratios produces a continuous nonstoichiometric series of rutile type, i.e., Sb(0.9)V(0.9+x)square(0.2-x)O(4), 0 < x < 0.2, and varying amounts of alpha-Sb2O4. Oxidized Sb(0.9)V(0.9)square(0.2)O(4), a = 4.63, c = 3.03 Angstrom (X ray powder data, XRD), is formed in pure oxygen and exhibits a modulated structure with an approximate supercell: 2 root 2a, 2 root 2b, 4c (electron diffraction, ED). In pure nitrogen, reduced Sb0.9V1.1O4, a = 4.60, c = 3.08 Angstrom (XRD), with the supercell root 2a, root 2b, 2c (ED), is produced. Heating at intermediate partial pressures of oxygen give phases with the basic rutile cell a = b, c (XRD, ED). The... (More)
Heating equimolar mixtures of Sb2O3 and V2O5 at 800 degrees C in flowing gas with varying O-2/N-2 ratios produces a continuous nonstoichiometric series of rutile type, i.e., Sb(0.9)V(0.9+x)square(0.2-x)O(4), 0 < x < 0.2, and varying amounts of alpha-Sb2O4. Oxidized Sb(0.9)V(0.9)square(0.2)O(4), a = 4.63, c = 3.03 Angstrom (X ray powder data, XRD), is formed in pure oxygen and exhibits a modulated structure with an approximate supercell: 2 root 2a, 2 root 2b, 4c (electron diffraction, ED). In pure nitrogen, reduced Sb0.9V1.1O4, a = 4.60, c = 3.08 Angstrom (XRD), with the supercell root 2a, root 2b, 2c (ED), is produced. Heating at intermediate partial pressures of oxygen give phases with the basic rutile cell a = b, c (XRD, ED). The formulation of this series is supported by data obtained by Fourier transform infrared spectroscopy. Under reducing conditions (in pure nitrogen), a solid solution series of Sb0.9V1.1O4 and VO2 is observed, i.e., Sb0.9-yV1.1+yO4, 0 < y < 0.7. Vanadium-rich Sb0.2V1.8O4, with a = 4.55, c = 2.99 Angstrom (XRD), exhibits a basic rutile lattice with diffuse intensity between Bragg spots (ED). (C) 1995 Academic Press, Inc. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Solid State Chemistry
volume
116
issue
2
pages
369 - 377
publisher
Elsevier
external identifiers
  • wos:A1995QW21400023
  • scopus:0001374763
ISSN
0022-4596
DOI
10.1006/jssc.1995.1228
language
English
LU publication?
yes
id
96988f07-8eab-47e2-979f-f3110c913207 (old id 3914824)
date added to LUP
2016-04-01 16:47:52
date last changed
2021-08-29 04:19:13
@article{96988f07-8eab-47e2-979f-f3110c913207,
  abstract     = {{Heating equimolar mixtures of Sb2O3 and V2O5 at 800 degrees C in flowing gas with varying O-2/N-2 ratios produces a continuous nonstoichiometric series of rutile type, i.e., Sb(0.9)V(0.9+x)square(0.2-x)O(4), 0 &lt; x &lt; 0.2, and varying amounts of alpha-Sb2O4. Oxidized Sb(0.9)V(0.9)square(0.2)O(4), a = 4.63, c = 3.03 Angstrom (X ray powder data, XRD), is formed in pure oxygen and exhibits a modulated structure with an approximate supercell: 2 root 2a, 2 root 2b, 4c (electron diffraction, ED). In pure nitrogen, reduced Sb0.9V1.1O4, a = 4.60, c = 3.08 Angstrom (XRD), with the supercell root 2a, root 2b, 2c (ED), is produced. Heating at intermediate partial pressures of oxygen give phases with the basic rutile cell a = b, c (XRD, ED). The formulation of this series is supported by data obtained by Fourier transform infrared spectroscopy. Under reducing conditions (in pure nitrogen), a solid solution series of Sb0.9V1.1O4 and VO2 is observed, i.e., Sb0.9-yV1.1+yO4, 0 &lt; y &lt; 0.7. Vanadium-rich Sb0.2V1.8O4, with a = 4.55, c = 2.99 Angstrom (XRD), exhibits a basic rutile lattice with diffuse intensity between Bragg spots (ED). (C) 1995 Academic Press, Inc.}},
  author       = {{Landa-Cánovas, A and Nilsson, J and Hansen, Staffan and Ståhl, K and Andersson, Arne}},
  issn         = {{0022-4596}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{369--377}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Solid State Chemistry}},
  title        = {{On the Non-Stoichiometry in Rutile-Type »SbVO4}},
  url          = {{http://dx.doi.org/10.1006/jssc.1995.1228}},
  doi          = {{10.1006/jssc.1995.1228}},
  volume       = {{116}},
  year         = {{1995}},
}