Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state
Autor(a) principal: | |
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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/10.1016/j.jaap.2016.01.010 http://hdl.handle.net/11449/174142 |
Resumo: | Synthesis, characterization, and thermal behavior of light trivalent lanthanide picolinate (La-Gd, except Pm) as well as the thermal behavior of picolinic acid and its sodium salt were investigated employing elemental analysis, complexometry, differential scanning calorimetry (DSC), simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), infrared spectroscopy (FTIR), X-ray power diffractometry, and evolved gas analysis (EGA) for TG-DSC coupled to FTIR. All the synthesized compounds were obtained in the anhydrous state and the thermal decomposition in dynamic dry air atmosphere occured in a single step or two consecutive steps with formation of the respective oxides, CeO2, Pr6O11 and Ln2O3 (Ln = La, Nd to Gd). In dynamic dry nitrogen atmosphere the thermal decomposition occured in two or three consecutive steps and mass loss was observed up to 1000 °C. The EGA data allowed the identification of gaseous products evolved during pyrolysis and oxidative decomposition. The results of density functional theory (DFT) and FTIR also provided information on the ligand's denticity. |
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Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid stateDensity functional theory (DFT)Evolved gases analysis (EGA)Light trivalent lanthanidesPicolinatePyrolysisSynthesis, characterization, and thermal behavior of light trivalent lanthanide picolinate (La-Gd, except Pm) as well as the thermal behavior of picolinic acid and its sodium salt were investigated employing elemental analysis, complexometry, differential scanning calorimetry (DSC), simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), infrared spectroscopy (FTIR), X-ray power diffractometry, and evolved gas analysis (EGA) for TG-DSC coupled to FTIR. All the synthesized compounds were obtained in the anhydrous state and the thermal decomposition in dynamic dry air atmosphere occured in a single step or two consecutive steps with formation of the respective oxides, CeO2, Pr6O11 and Ln2O3 (Ln = La, Nd to Gd). In dynamic dry nitrogen atmosphere the thermal decomposition occured in two or three consecutive steps and mass loss was observed up to 1000 °C. The EGA data allowed the identification of gaseous products evolved during pyrolysis and oxidative decomposition. The results of density functional theory (DFT) and FTIR also provided information on the ligand's denticity.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)National Cancer CenterInstituto de Química Universidade Estadual Paulista, CP 355FACULDAde de CIÊNCIAS UNESP - Univ. Estadual Paulista Campus Bauru Departamento de QuímicaInstituto de Química Universidade Estadual Paulista, CP 355FACULDAde de CIÊNCIAS UNESP - Univ. Estadual Paulista Campus Bauru Departamento de QuímicaFAPESP: 2013/09022-7Universidade Estadual Paulista (Unesp)Do Nascimento, A. L.C.S. [UNESP]Teixeira, J. A. [UNESP]Nunes, W. D.G. [UNESP]Campos, F. X. [UNESP]Treu-Filho, O. [UNESP]Caires, F. J. [UNESP]Ionashiro, M. [UNESP]2018-12-11T17:09:32Z2018-12-11T17:09:32Z2016-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article242-250application/pdfhttp://dx.doi.org/10.1016/j.jaap.2016.01.010Journal of Analytical and Applied Pyrolysis, v. 119, p. 242-250.0165-2370http://hdl.handle.net/11449/17414210.1016/j.jaap.2016.01.0102-s2.0-850109149942-s2.0-85010914994.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Analytical and Applied Pyrolysis1,129info:eu-repo/semantics/openAccess2024-04-29T18:16:47Zoai:repositorio.unesp.br:11449/174142Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:16:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
title |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
spellingShingle |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state Do Nascimento, A. L.C.S. [UNESP] Density functional theory (DFT) Evolved gases analysis (EGA) Light trivalent lanthanides Picolinate Pyrolysis |
title_short |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
title_full |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
title_fullStr |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
title_full_unstemmed |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
title_sort |
Thermal behavior, spectroscopic study and evolved gas analysis (EGA) during pyrolysis of picolinic acid, sodium picolinate and its light trivalent lanthanide complexes in solid state |
author |
Do Nascimento, A. L.C.S. [UNESP] |
author_facet |
Do Nascimento, A. L.C.S. [UNESP] Teixeira, J. A. [UNESP] Nunes, W. D.G. [UNESP] Campos, F. X. [UNESP] Treu-Filho, O. [UNESP] Caires, F. J. [UNESP] Ionashiro, M. [UNESP] |
author_role |
author |
author2 |
Teixeira, J. A. [UNESP] Nunes, W. D.G. [UNESP] Campos, F. X. [UNESP] Treu-Filho, O. [UNESP] Caires, F. J. [UNESP] Ionashiro, M. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Do Nascimento, A. L.C.S. [UNESP] Teixeira, J. A. [UNESP] Nunes, W. D.G. [UNESP] Campos, F. X. [UNESP] Treu-Filho, O. [UNESP] Caires, F. J. [UNESP] Ionashiro, M. [UNESP] |
dc.subject.por.fl_str_mv |
Density functional theory (DFT) Evolved gases analysis (EGA) Light trivalent lanthanides Picolinate Pyrolysis |
topic |
Density functional theory (DFT) Evolved gases analysis (EGA) Light trivalent lanthanides Picolinate Pyrolysis |
description |
Synthesis, characterization, and thermal behavior of light trivalent lanthanide picolinate (La-Gd, except Pm) as well as the thermal behavior of picolinic acid and its sodium salt were investigated employing elemental analysis, complexometry, differential scanning calorimetry (DSC), simultaneous thermogravimetry and differential scanning calorimetry (TG-DSC), infrared spectroscopy (FTIR), X-ray power diffractometry, and evolved gas analysis (EGA) for TG-DSC coupled to FTIR. All the synthesized compounds were obtained in the anhydrous state and the thermal decomposition in dynamic dry air atmosphere occured in a single step or two consecutive steps with formation of the respective oxides, CeO2, Pr6O11 and Ln2O3 (Ln = La, Nd to Gd). In dynamic dry nitrogen atmosphere the thermal decomposition occured in two or three consecutive steps and mass loss was observed up to 1000 °C. The EGA data allowed the identification of gaseous products evolved during pyrolysis and oxidative decomposition. The results of density functional theory (DFT) and FTIR also provided information on the ligand's denticity. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-01 2018-12-11T17:09:32Z 2018-12-11T17:09:32Z |
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/10.1016/j.jaap.2016.01.010 Journal of Analytical and Applied Pyrolysis, v. 119, p. 242-250. 0165-2370 http://hdl.handle.net/11449/174142 10.1016/j.jaap.2016.01.010 2-s2.0-85010914994 2-s2.0-85010914994.pdf |
url |
http://dx.doi.org/10.1016/j.jaap.2016.01.010 http://hdl.handle.net/11449/174142 |
identifier_str_mv |
Journal of Analytical and Applied Pyrolysis, v. 119, p. 242-250. 0165-2370 10.1016/j.jaap.2016.01.010 2-s2.0-85010914994 2-s2.0-85010914994.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Analytical and Applied Pyrolysis 1,129 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
242-250 application/pdf |
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 |
|
_version_ |
1799964621918961664 |