Structural investigation of nickel polyphosphate coacervate glass-ceramics
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
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. |
id |
UNSP_ed64f7a2acaf9d0fc413946597f3a692 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/176949 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
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 |
_version_ |
1813546464610091008 |