Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 75, Issue 2, Pages 846-851Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2009.12.011
Keywords
Vanadate-tellurate glasses and glass ceramics; Te(2)V(2)O(9) crystalline phase; FTIR spectroscopy; DFT calculations
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Vanadate-tellurate Vitreous systems with composition (1 - x)TeO(2)center dot xV(2)O(5) where x = 0.3 and 0.4 have been prepared by the conventional melt-quench method. The structural aspects have been investigated using FTIR spectroscopy and the density functional theory (DFT) calculations. The present study provides the interesting information concerning devitrification behavior of the vanadate-tellurate vitreous system which occur Te(2)V(2)O(9) crystalline phase. The structure of the heat-treated glasses was found to consist mainly of rings containing [TeO(3)], [TeO(4)], [VO(4)] and some [VO(5)] structural units. (C) 2009 Elsevier B.V. All rights reserved.
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