Conversion of tin and alkali chlorides to phosphates and vitrification into silicate glasses

Autor: Emilie Bekaert, Gérard Palavit, Alain Wattiaux, Laurent Delevoye, Lionel Montagne, André Kunegel

Publikováno v: Journal of Non-Crystalline Solids. 352:4112-4121

Mixtures of tin(II) chloride and tin(II)-sodium–potassium chlorides were converted into phosphate salts by reaction with ammonium dihydrogen-phosphate at 400 °C. Element analyses showed that no loss occurred during the treatment, and Mossbauer and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b35522fa30dd730db8920e66d7fb0178
https://doi.org/10.1016/j.jnoncrysol.2006.06.007

Solid-state NMR study of mixed network sodium–niobium phosphate glasses

Autor: Laurent Delevoye, Jean-Paul Amoureux, Lionel Montagne, Jean-Jacques Videau, Gérard Palavit, Alexandrine Flambard

Publikováno v: Journal of Non-Crystalline Solids. :75-79

x Nb 2 O 5 –(100 − x )NaPO 3 glasses with 0 ⩽ x ⩽ 40 were characterized by 31 P, 93 Nb and 17 O NMR. 31 P MAS-NMR indicates that Nb 2 O 5 depolymerises the sodium metaphosphate network with the formation of Q 1 and Q 0 sites. However, Nb 2 O

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ebeff95f2b12dc47371deb2b45c6699c
https://doi.org/10.1016/j.jnoncrysol.2004.07.046

Structural characterization of iron–alumino–silicate glasses

Autor: Lionel Montagne, Alain Wattiaux, Sylvie Daviero, Gérard Palavit, Jean-Luc Bernard, Emilie Antoni, Hervé Vezin

Publikováno v: Journal of Non-Crystalline Solids
Journal of Non-Crystalline Solids, Elsevier, 2004, 345-346, pp.66-69. ⟨10.1016/j.jnoncrysol.2004.07.045⟩

International audience; Two series of aluminosilicate glasses containing Fe2O3 were investigated. In the first one, the Fe2O3 content was 1.5 mol%, and (Al2O3 + Na2O) was substituted for SiO2. Na2O was added with Al2O3 in order to keep constant the n

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37eb578197e63a626ab1077de3b44243
https://doi.org/10.1016/j.jnoncrysol.2004.07.045

Glass Network Evolution with Bi3+/Ti4+ Substitution in Phosphate Glasses Formulated with a Constant Oxygen/Phosphorus Ratio. EXAFS, XANES, and 31P Double Quantum MAS NMR

Autor: M. Et-Tabirou, Sylvie Daviero, Gérard Palavit, Lionel Montagne, Abdelillah Shaim

Publikováno v: Chemistry of Materials. 15:4709-4716

This paper reports a structural study of the effect of TiO 2 substitution for Bi 2 O 3 in xNa 2 O-xP 2 O 5 -yBi 2 O 3 -zTiO 2 glasses, which were formulated in order to keep a constant average polymerization of the phosphate network. XANES and EXAFS

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c5900e4cb75d524e4f1fec6c1072af99
https://doi.org/10.1021/cm0310061

EXAFS, XANES and 31P double-quantum MAS-NMR of (50−x/2)Na2O–xBi2O3–(50−x/2)P2O5 glasses

Autor: S Daviero, Lionel Montagne, Gérard Palavit, G. Mairesse, Valérie Briois, S Belin

Publikováno v: Journal of Physics and Chemistry of Solids. 64:253-260

The structure of (50− x /2)Na 2 O– x Bi 2 O 3 –(50− x /2)P 2 O 5 glasses was investigated by Bi L III XANES and EXAFS, 31 P double-quantum MAS-NMR and 23 Na MAS-NMR. From XANES and EXAFS analyses, Bi 3+ environment is found to be similar to t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8ad2e74a5cb85b4333b276bd2089a7e7
https://doi.org/10.1016/s0022-3697(02)00287-1