Structure-Property Correlation in Sodium ...
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Article dans une revue scientifique: Article original
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Title :
Structure-Property Correlation in Sodium Borophosphate Glasses Modified with Niobium Oxide
Author(s) :
Mošner, Petr [Auteur]
Department of General and Inorganic Chemistry [University of Pardubice]
Hostinsky, Tomas [Auteur]
Department of General and Inorganic Chemistry [University of Pardubice]
Koudelka, Ladislav [Auteur]
Department of General and Inorganic Chemistry [University of Pardubice]
Razum, Marta [Auteur]
Institut Ruđer Bošković [IRB]
Pavić, Luka [Auteur]
Institut Ruđer Bošković [IRB]
Montagne, Lionel [Auteur]
Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
UCCS Équipe RMN et matériaux inorganiques [RM2I]
Revel, Bertrand [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Department of General and Inorganic Chemistry [University of Pardubice]
Hostinsky, Tomas [Auteur]
Department of General and Inorganic Chemistry [University of Pardubice]
Koudelka, Ladislav [Auteur]
Department of General and Inorganic Chemistry [University of Pardubice]
Razum, Marta [Auteur]
Institut Ruđer Bošković [IRB]
Pavić, Luka [Auteur]
Institut Ruđer Bošković [IRB]
Montagne, Lionel [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
UCCS Équipe RMN et matériaux inorganiques [RM2I]
Revel, Bertrand [Auteur]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Journal title :
Coatings
Volume number :
12
Pages :
1626
Publisher :
MDPI
Publication date :
2022-10-26
ISSN :
2079-6412
English keyword(s) :
Raman spectra
NMR spectra
glass structure
glass properties
phosphate glasses
NMR spectra
glass structure
glass properties
phosphate glasses
HAL domain(s) :
Chimie/Chimie inorganique
English abstract : [en]
Bulk glasses of the series (100−x)[0.4Na2O-0.2Nb2O5-0.4P2O5]-xB2O3 with x = 0–48 mol% B2O3 were prepared by slow cooling in air. Their glass transition temperature increases within the range of 0–16 mol% B2O3, but further ...
Show more >Bulk glasses of the series (100−x)[0.4Na2O-0.2Nb2O5-0.4P2O5]-xB2O3 with x = 0–48 mol% B2O3 were prepared by slow cooling in air. Their glass transition temperature increases within the range of 0–16 mol% B2O3, but further additions of B2O3 result in its decrease. Their structure was investigated by Raman, 11B, and 31P MAS NMR spectroscopy. The relative number of BO4 units decreases with increasing B2O3 content, while the number of BO3 units increases up to 59 % at x = 48. The upfield shift of a broad resonance peak in the 31P MAS NMR spectra is ascribed to an increasing connectedness of the structural network with increasing B2O3 content. Strong Raman band at 916–929 cm−1 shows on the presence of NbO6 octahedra in the structural network of these glasses. With the B2O3 addition, a decrease in DC conductivity is observed, which is attributed to the decrease in the concentration of Na+ ions.Show less >
Show more >Bulk glasses of the series (100−x)[0.4Na2O-0.2Nb2O5-0.4P2O5]-xB2O3 with x = 0–48 mol% B2O3 were prepared by slow cooling in air. Their glass transition temperature increases within the range of 0–16 mol% B2O3, but further additions of B2O3 result in its decrease. Their structure was investigated by Raman, 11B, and 31P MAS NMR spectroscopy. The relative number of BO4 units decreases with increasing B2O3 content, while the number of BO3 units increases up to 59 % at x = 48. The upfield shift of a broad resonance peak in the 31P MAS NMR spectra is ascribed to an increasing connectedness of the structural network with increasing B2O3 content. Strong Raman band at 916–929 cm−1 shows on the presence of NbO6 octahedra in the structural network of these glasses. With the B2O3 addition, a decrease in DC conductivity is observed, which is attributed to the decrease in the concentration of Na+ ions.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
Centrale Lille
ENSCL
Univ. Artois
CNRS
Centrale Lille
ENSCL
Univ. Artois
Collections :
Research team(s) :
RMN et matériaux inorganiques (RM2I)
Submission date :
2023-05-04T00:33:40Z
2023-05-12T15:36:34Z
2023-05-12T15:36:34Z
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