Structural investigation of nickel polyphosphate coacervate glass-ceramics

Detalhes bibliográficos
Autor(a) principal: Franco, Douglas F.
Data de Publicação: 2016
Outros Autores: Manzani, Danilo [UNESP], Barud, Hernane S., Antonio, Selma G. [UNESP], De Oliveira, Luiz F. C., Silva, Maurício A. P., Ribeiro, Sidney J. L. [UNESP], Nalin, Marcelo [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1039/c6ra20696d
http://hdl.handle.net/11449/176949
Resumo: Nickel polyphosphate coacervates have been prepared through the coacervation process of sodium polyphosphate and Ni2+ chloride solutions by the addition of different solvents with low molecular weight. The great potential of nickel polyphosphate coacervates as a material precursor was demonstrated by preparation of nickel polyphosphate glass-ceramics. Structural and spectroscopic properties were analyzed by thermal analysis, X-ray powder diffraction, Raman spectroscopic and UV-VIS techniques. Raman spectra for the nickel polyphosphate coacervates and nickel polyphosphate coacervates glass-ceramics samples shows that the addition of solvents leads to a depolymerization of the polyphosphate chains, resulting in an increase of shorter chains species based on pyrophosphates. The identification and quantification of Ni2P4012, β-Ni2P2O7 and δ-Ni2P2O7 crystalline phases present in the nickel polyphosphate glass-ceramics were carried out by X-ray powder diffraction using the Rietveld method. Quantitative phase analyses of the three polymorph forms were also evaluated. Based on interpretation of reflectance spectroscopy and Rietveld refinement, Ni2+ ions may occupy distorted octahedral and tetrahedral sites.
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spelling Structural investigation of nickel polyphosphate coacervate glass-ceramicsNickel polyphosphate coacervates have been prepared through the coacervation process of sodium polyphosphate and Ni2+ chloride solutions by the addition of different solvents with low molecular weight. The great potential of nickel polyphosphate coacervates as a material precursor was demonstrated by preparation of nickel polyphosphate glass-ceramics. Structural and spectroscopic properties were analyzed by thermal analysis, X-ray powder diffraction, Raman spectroscopic and UV-VIS techniques. Raman spectra for the nickel polyphosphate coacervates and nickel polyphosphate coacervates glass-ceramics samples shows that the addition of solvents leads to a depolymerization of the polyphosphate chains, resulting in an increase of shorter chains species based on pyrophosphates. The identification and quantification of Ni2P4012, β-Ni2P2O7 and δ-Ni2P2O7 crystalline phases present in the nickel polyphosphate glass-ceramics were carried out by X-ray powder diffraction using the Rietveld method. Quantitative phase analyses of the three polymorph forms were also evaluated. Based on interpretation of reflectance spectroscopy and Rietveld refinement, Ni2+ ions may occupy distorted octahedral and tetrahedral sites.LAVIE Department of Chemistry Federal University of São Carlos-UFSCar, CP 676Institute of Chemistry Universidade Estadual Paulista-Unesp, P. O. Box 355Laboratório de Biopolímeros e Biomateriais (BioPolMat) Centro Universitário de Araraquara (UNIARA)Núcleo de Espectroscopia e Estrutura Molecular-NEEM Departamento de Química Instituto de Ciências Exatas Universidade Federal de Juiz de Fora-UFJFInstitute of Chemistry Universidade Estadual Paulista-Unesp, P. O. Box 355Universidade Federal de São Carlos (UFSCar)Universidade Estadual Paulista (Unesp)Centro Universitário de Araraquara (UNIARA)Universidade Federal de Juiz de Fora-UFJFFranco, Douglas F.Manzani, Danilo [UNESP]Barud, Hernane S.Antonio, Selma G. [UNESP]De Oliveira, Luiz F. C.Silva, Maurício A. P.Ribeiro, Sidney J. L. [UNESP]Nalin, Marcelo [UNESP]2018-12-11T17:23:14Z2018-12-11T17:23:14Z2016-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article91150-91156http://dx.doi.org/10.1039/c6ra20696dRSC Advances, v. 6, n. 94, p. 91150-91156, 2016.2046-2069http://hdl.handle.net/11449/17694910.1039/c6ra20696d2-s2.0-849892875653349586880746735Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRSC Advances0,863info:eu-repo/semantics/openAccess2024-09-27T14:57:07Zoai:repositorio.unesp.br:11449/176949Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-27T14:57:07Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Structural investigation of nickel polyphosphate coacervate glass-ceramics
title Structural investigation of nickel polyphosphate coacervate glass-ceramics
spellingShingle Structural investigation of nickel polyphosphate coacervate glass-ceramics
Franco, Douglas F.
title_short Structural investigation of nickel polyphosphate coacervate glass-ceramics
title_full Structural investigation of nickel polyphosphate coacervate glass-ceramics
title_fullStr Structural investigation of nickel polyphosphate coacervate glass-ceramics
title_full_unstemmed Structural investigation of nickel polyphosphate coacervate glass-ceramics
title_sort Structural investigation of nickel polyphosphate coacervate glass-ceramics
author Franco, Douglas F.
author_facet Franco, Douglas F.
Manzani, Danilo [UNESP]
Barud, Hernane S.
Antonio, Selma G. [UNESP]
De Oliveira, Luiz F. C.
Silva, Maurício A. P.
Ribeiro, Sidney J. L. [UNESP]
Nalin, Marcelo [UNESP]
author_role author
author2 Manzani, Danilo [UNESP]
Barud, Hernane S.
Antonio, Selma G. [UNESP]
De Oliveira, Luiz F. C.
Silva, Maurício A. P.
Ribeiro, Sidney J. L. [UNESP]
Nalin, Marcelo [UNESP]
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal de São Carlos (UFSCar)
Universidade Estadual Paulista (Unesp)
Centro Universitário de Araraquara (UNIARA)
Universidade Federal de Juiz de Fora-UFJF
dc.contributor.author.fl_str_mv Franco, Douglas F.
Manzani, Danilo [UNESP]
Barud, Hernane S.
Antonio, Selma G. [UNESP]
De Oliveira, Luiz F. C.
Silva, Maurício A. P.
Ribeiro, Sidney J. L. [UNESP]
Nalin, Marcelo [UNESP]
description Nickel polyphosphate coacervates have been prepared through the coacervation process of sodium polyphosphate and Ni2+ chloride solutions by the addition of different solvents with low molecular weight. The great potential of nickel polyphosphate coacervates as a material precursor was demonstrated by preparation of nickel polyphosphate glass-ceramics. Structural and spectroscopic properties were analyzed by thermal analysis, X-ray powder diffraction, Raman spectroscopic and UV-VIS techniques. Raman spectra for the nickel polyphosphate coacervates and nickel polyphosphate coacervates glass-ceramics samples shows that the addition of solvents leads to a depolymerization of the polyphosphate chains, resulting in an increase of shorter chains species based on pyrophosphates. The identification and quantification of Ni2P4012, β-Ni2P2O7 and δ-Ni2P2O7 crystalline phases present in the nickel polyphosphate glass-ceramics were carried out by X-ray powder diffraction using the Rietveld method. Quantitative phase analyses of the three polymorph forms were also evaluated. Based on interpretation of reflectance spectroscopy and Rietveld refinement, Ni2+ ions may occupy distorted octahedral and tetrahedral sites.
publishDate 2016
dc.date.none.fl_str_mv 2016-01-01
2018-12-11T17:23:14Z
2018-12-11T17:23:14Z
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/10.1039/c6ra20696d
RSC Advances, v. 6, n. 94, p. 91150-91156, 2016.
2046-2069
http://hdl.handle.net/11449/176949
10.1039/c6ra20696d
2-s2.0-84989287565
3349586880746735
url http://dx.doi.org/10.1039/c6ra20696d
http://hdl.handle.net/11449/176949
identifier_str_mv RSC Advances, v. 6, n. 94, p. 91150-91156, 2016.
2046-2069
10.1039/c6ra20696d
2-s2.0-84989287565
3349586880746735
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv RSC Advances
0,863
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 91150-91156
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
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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