共 48 条
Structural investigation of fluorophosphate glasses by 19F, 31P MAS-NMR and IR spectroscopy
被引:21
作者:
Djouama, T.
[1
]
Poulain, M.
[2
]
Bureau, B.
[2
]
Lebullenger, R.
[2
]
机构:
[1] USTHB Bab Ezzouar, Lab Elect Quant, Algiers 16111, Algeria
[2] Univ Rennes 1, Sci Chim, F-35042 Rennes, France
关键词:
Fluorophosphate;
Glass;
Vibrational spectroscopy;
NMR;
FLUORIDE GLASSES;
SPECTRA;
PHOSPHATES;
ABSORPTION;
D O I:
10.1016/j.jnoncrysol.2015.01.017
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
A series of glass samples of composition [(x)MnF2-(x-80)NaPO3-(20)ZnF2] where x = 0, 10, 20, 30 and 40, has been prepared. IR and NMR spectroscopy have been performed, especially F-19 MAS and P-31 MAS NMR. On the basis of these measurements, glass structure may be described as a hybrid network of ZnF6 and MnF6 octahedra sharing corners and edges and also connected to tetrahedral fluorophosphate groups (PX)(4) where X = O- or F-. Sodium cations fill vacancies of this network. (C) 2015 Elsevier B.V. All rights reserved.
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页码:16 / 20
页数:5
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