BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies

Detalhes bibliográficos
Autor(a) principal: Galleani, Gustavo
Data de Publicação: 2020
Outros Autores: Bradtmüller, Henrik, Fares, Hssen [UNESP], Santagneli, Silvia Helena [UNESP], Nalin, Marcelo [UNESP], Eckert, Hellmut
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1021/acs.jpcc.0c07792
http://hdl.handle.net/11449/205521
Resumo: Bismuth-containing rare-earth codoped fluoride phosphate glasses are promising materials for superbroadband near-infrared (NIR) emission with potential applications in optical amplification. To elucidate their structural organization, this contribution develops a comprehensive multinuclear solid-state single and 31P/19F double resonance NMR strategy, applied to glasses in the system (BiF3)y(50NaPO3-20Ba(PO3)2-20NaF-10BaF2)100-y (y = 0, 5, 10, 20, 30, 40). To separately assess the influence of bismuth and fluorine constituents on the network structure, an additional set of (NaPO3)50-2x(Ba(PO3)2)20-x(NaF)20+2x(BaF2)10+x (x = 0, 2.5, 5.0, 7.5) glasses was also investigated. Introduction of alkali fluoride ions into phosphate glasses is shown to follow a new network modification scheme involving depolymerization of polyphosphate chains under the formation of F-bonded fluorophosphate units. However, a significant part of the fluoride stays separate, interacting exclusively with metal-ion species. 23Na MAS and 23Na{31P} double resonance NMR results are consistent with a local sodium ion environment dominated by phosphate ions in the Bi-free system, whereas in the BiF3-containing glasses, the successive reduction of the dipolar second moment M2(Na-P) with increasing BiF3 content reflects the expected dilution effect, accompanied by increasing competition of the fluoride ions for ligation with the Na+ ions.
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spelling BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman SpectroscopiesBismuth-containing rare-earth codoped fluoride phosphate glasses are promising materials for superbroadband near-infrared (NIR) emission with potential applications in optical amplification. To elucidate their structural organization, this contribution develops a comprehensive multinuclear solid-state single and 31P/19F double resonance NMR strategy, applied to glasses in the system (BiF3)y(50NaPO3-20Ba(PO3)2-20NaF-10BaF2)100-y (y = 0, 5, 10, 20, 30, 40). To separately assess the influence of bismuth and fluorine constituents on the network structure, an additional set of (NaPO3)50-2x(Ba(PO3)2)20-x(NaF)20+2x(BaF2)10+x (x = 0, 2.5, 5.0, 7.5) glasses was also investigated. Introduction of alkali fluoride ions into phosphate glasses is shown to follow a new network modification scheme involving depolymerization of polyphosphate chains under the formation of F-bonded fluorophosphate units. However, a significant part of the fluoride stays separate, interacting exclusively with metal-ion species. 23Na MAS and 23Na{31P} double resonance NMR results are consistent with a local sodium ion environment dominated by phosphate ions in the Bi-free system, whereas in the BiF3-containing glasses, the successive reduction of the dipolar second moment M2(Na-P) with increasing BiF3 content reflects the expected dilution effect, accompanied by increasing competition of the fluoride ions for ligation with the Na+ ions.São Carlos Institute of Physics São Paulo University-USP, Avenida Trabalhador Saocarlense 400Institut für Physikalische Chemie Westfälische Wilhelms-Universität Münster, Corrensstrasse 30Institute of Chemistry São Paulo State University-UNESP, Avenida Professor Francisco Degni, 55Institute of Chemistry São Paulo State University-UNESP, Avenida Professor Francisco Degni, 55Universidade de São Paulo (USP)Westfälische Wilhelms-Universität MünsterUniversidade Estadual Paulista (Unesp)Galleani, GustavoBradtmüller, HenrikFares, Hssen [UNESP]Santagneli, Silvia Helena [UNESP]Nalin, Marcelo [UNESP]Eckert, Hellmut2021-06-25T10:16:47Z2021-06-25T10:16:47Z2020-11-19info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article25578-25587http://dx.doi.org/10.1021/acs.jpcc.0c07792Journal of Physical Chemistry C, v. 124, n. 46, p. 25578-25587, 2020.1932-74551932-7447http://hdl.handle.net/11449/20552110.1021/acs.jpcc.0c077922-s2.0-85096595013Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Physical Chemistry Cinfo:eu-repo/semantics/openAccess2021-10-23T14:48:14Zoai:repositorio.unesp.br:11449/205521Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T13:58:48.369550Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
title BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
spellingShingle BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
Galleani, Gustavo
title_short BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
title_full BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
title_fullStr BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
title_full_unstemmed BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
title_sort BiF3Incorporation in Na/Ba Mixed Network Modifier Fluoride-Phosphate Glasses: Structural Studies by Solid-State NMR and Raman Spectroscopies
author Galleani, Gustavo
author_facet Galleani, Gustavo
Bradtmüller, Henrik
Fares, Hssen [UNESP]
Santagneli, Silvia Helena [UNESP]
Nalin, Marcelo [UNESP]
Eckert, Hellmut
author_role author
author2 Bradtmüller, Henrik
Fares, Hssen [UNESP]
Santagneli, Silvia Helena [UNESP]
Nalin, Marcelo [UNESP]
Eckert, Hellmut
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Westfälische Wilhelms-Universität Münster
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Galleani, Gustavo
Bradtmüller, Henrik
Fares, Hssen [UNESP]
Santagneli, Silvia Helena [UNESP]
Nalin, Marcelo [UNESP]
Eckert, Hellmut
description Bismuth-containing rare-earth codoped fluoride phosphate glasses are promising materials for superbroadband near-infrared (NIR) emission with potential applications in optical amplification. To elucidate their structural organization, this contribution develops a comprehensive multinuclear solid-state single and 31P/19F double resonance NMR strategy, applied to glasses in the system (BiF3)y(50NaPO3-20Ba(PO3)2-20NaF-10BaF2)100-y (y = 0, 5, 10, 20, 30, 40). To separately assess the influence of bismuth and fluorine constituents on the network structure, an additional set of (NaPO3)50-2x(Ba(PO3)2)20-x(NaF)20+2x(BaF2)10+x (x = 0, 2.5, 5.0, 7.5) glasses was also investigated. Introduction of alkali fluoride ions into phosphate glasses is shown to follow a new network modification scheme involving depolymerization of polyphosphate chains under the formation of F-bonded fluorophosphate units. However, a significant part of the fluoride stays separate, interacting exclusively with metal-ion species. 23Na MAS and 23Na{31P} double resonance NMR results are consistent with a local sodium ion environment dominated by phosphate ions in the Bi-free system, whereas in the BiF3-containing glasses, the successive reduction of the dipolar second moment M2(Na-P) with increasing BiF3 content reflects the expected dilution effect, accompanied by increasing competition of the fluoride ions for ligation with the Na+ ions.
publishDate 2020
dc.date.none.fl_str_mv 2020-11-19
2021-06-25T10:16:47Z
2021-06-25T10:16:47Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1021/acs.jpcc.0c07792
Journal of Physical Chemistry C, v. 124, n. 46, p. 25578-25587, 2020.
1932-7455
1932-7447
http://hdl.handle.net/11449/205521
10.1021/acs.jpcc.0c07792
2-s2.0-85096595013
url http://dx.doi.org/10.1021/acs.jpcc.0c07792
http://hdl.handle.net/11449/205521
identifier_str_mv Journal of Physical Chemistry C, v. 124, n. 46, p. 25578-25587, 2020.
1932-7455
1932-7447
10.1021/acs.jpcc.0c07792
2-s2.0-85096595013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Physical Chemistry C
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 25578-25587
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
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repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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