Infrared spectroscopic and DFT investigations of the vanadate-tellurate glasses structures.
Spectrochim Acta A Mol Biomol Spectrosc
; 75(2): 846-51, 2010 Feb.
Article
em En
| MEDLINE
| ID: mdl-20036190
ABSTRACT
Vanadate-tellurate vitreous systems with composition (1-x)TeO(2).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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Teoria Quântica
/
Espectrofotometria Infravermelho
/
Telúrio
/
Vanadatos
/
Cerâmica
Idioma:
En
Revista:
Spectrochim Acta A Mol Biomol Spectrosc
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2010
Tipo de documento:
Article
País de afiliação:
Romênia