Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS)
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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.2018.09.018 http://hdl.handle.net/11449/188127 |
Resumo: | Synthesis, characterization, thermal stability and pyrolysis of some alkaline earth picolinates M(C6H5NO2)2⋅nH2O (where M = Mg(II), Ca(II), Sr(II) and Ba(II) and n = di (Mg), mono (Ca), hemi three (Sr) hydrated) were investigated using a range of techniques including simultaneous thermogravimetry and differential scanning calorimetry (TG–DSC), evolved gas analysis (EGA), differential scanning calorimetry (DSC), Hot-Stage microscopy (HSM), powder X-ray diffractometry (PXRD), complexometry with EDTA and elemental analysis (EA). The TG-DSC curves show that the hydrated compounds dehydrate in a single step of mass loss and the thermal stability of the anhydrous compound is little influenced from the atmosphere used. On the other hand, the mechanisms of thermal decomposition are profoundly influenced by the atmosphere used, as can also be observed in the EGA data. In addition, a comparison between two calorimetric techniques, Microwave Thermal Analysis (MWTA) and DSC, was made which showed similar profiles. Two evolved gas analysis (EGA) techniques: TG-DSC coupled to FTIR and HSM coupled to a quadrupole mass spectrometer (MS) were also used to provide additional information about the pyrolysis mechanism. |
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Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS)Alkaline earth picolinatesHSM-MSMicrowave thermal analysis (MWTA)TG-DSC-FTIRSynthesis, characterization, thermal stability and pyrolysis of some alkaline earth picolinates M(C6H5NO2)2⋅nH2O (where M = Mg(II), Ca(II), Sr(II) and Ba(II) and n = di (Mg), mono (Ca), hemi three (Sr) hydrated) were investigated using a range of techniques including simultaneous thermogravimetry and differential scanning calorimetry (TG–DSC), evolved gas analysis (EGA), differential scanning calorimetry (DSC), Hot-Stage microscopy (HSM), powder X-ray diffractometry (PXRD), complexometry with EDTA and elemental analysis (EA). The TG-DSC curves show that the hydrated compounds dehydrate in a single step of mass loss and the thermal stability of the anhydrous compound is little influenced from the atmosphere used. On the other hand, the mechanisms of thermal decomposition are profoundly influenced by the atmosphere used, as can also be observed in the EGA data. In addition, a comparison between two calorimetric techniques, Microwave Thermal Analysis (MWTA) and DSC, was made which showed similar profiles. Two evolved gas analysis (EGA) techniques: TG-DSC coupled to FTIR and HSM coupled to a quadrupole mass spectrometer (MS) were also used to provide additional information about the pyrolysis mechanism.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)University of HuddersfieldUniversidade Estadual Paulista (UNESP) Instituto de QuímicaThermal Methods Research Unit Department of Chemistry University of Huddersfield, HuddersfieldInstituto Federal de Educação Ciência e Tecnologia do Paraná (IFPR)Instituto Federal de Educação Ciência e Tecnologia de Rondônia (IFRO)Universidade Estadual Paulista (UNESP) Faculdade de Ciências Departamento de QuímicaUniversidade Estadual Paulista (UNESP) Instituto de QuímicaUniversidade Estadual Paulista (UNESP) Faculdade de Ciências Departamento de QuímicaUniversidade Estadual Paulista (Unesp)University of HuddersfieldCiência e Tecnologia do Paraná (IFPR)Ciência e Tecnologia de Rondônia (IFRO)Nascimento, A. L.C.S. [UNESP]Parkes, G. M.B.Ashton, G. P.Fernandes, R. P. [UNESP]Teixeira, J. A. [UNESP]Nunes, W. D.G. [UNESP]Ionashiro, M. [UNESP]Caires, F. J. [UNESP]2019-10-06T15:58:09Z2019-10-06T15:58:09Z2018-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article67-75http://dx.doi.org/10.1016/j.jaap.2018.09.018Journal of Analytical and Applied Pyrolysis, v. 135, p. 67-75.0165-2370http://hdl.handle.net/11449/18812710.1016/j.jaap.2018.09.0182-s2.0-85054139377Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Analytical and Applied Pyrolysisinfo:eu-repo/semantics/openAccess2024-04-29T18:16:59Zoai:repositorio.unesp.br:11449/188127Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-29T18:16:59Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
title |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
spellingShingle |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) Nascimento, A. L.C.S. [UNESP] Alkaline earth picolinates HSM-MS Microwave thermal analysis (MWTA) TG-DSC-FTIR |
title_short |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
title_full |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
title_fullStr |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
title_full_unstemmed |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
title_sort |
Thermal analysis in oxidative and pyrolysis conditions of alkaline earth metals picolinates using the techniques: TG-DSC, DSC, MWTA, HSM and EGA (TG-DSC-FTIR and HSM-MS) |
author |
Nascimento, A. L.C.S. [UNESP] |
author_facet |
Nascimento, A. L.C.S. [UNESP] Parkes, G. M.B. Ashton, G. P. Fernandes, R. P. [UNESP] Teixeira, J. A. [UNESP] Nunes, W. D.G. [UNESP] Ionashiro, M. [UNESP] Caires, F. J. [UNESP] |
author_role |
author |
author2 |
Parkes, G. M.B. Ashton, G. P. Fernandes, R. P. [UNESP] Teixeira, J. A. [UNESP] Nunes, W. D.G. [UNESP] Ionashiro, M. [UNESP] Caires, F. J. [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University of Huddersfield Ciência e Tecnologia do Paraná (IFPR) Ciência e Tecnologia de Rondônia (IFRO) |
dc.contributor.author.fl_str_mv |
Nascimento, A. L.C.S. [UNESP] Parkes, G. M.B. Ashton, G. P. Fernandes, R. P. [UNESP] Teixeira, J. A. [UNESP] Nunes, W. D.G. [UNESP] Ionashiro, M. [UNESP] Caires, F. J. [UNESP] |
dc.subject.por.fl_str_mv |
Alkaline earth picolinates HSM-MS Microwave thermal analysis (MWTA) TG-DSC-FTIR |
topic |
Alkaline earth picolinates HSM-MS Microwave thermal analysis (MWTA) TG-DSC-FTIR |
description |
Synthesis, characterization, thermal stability and pyrolysis of some alkaline earth picolinates M(C6H5NO2)2⋅nH2O (where M = Mg(II), Ca(II), Sr(II) and Ba(II) and n = di (Mg), mono (Ca), hemi three (Sr) hydrated) were investigated using a range of techniques including simultaneous thermogravimetry and differential scanning calorimetry (TG–DSC), evolved gas analysis (EGA), differential scanning calorimetry (DSC), Hot-Stage microscopy (HSM), powder X-ray diffractometry (PXRD), complexometry with EDTA and elemental analysis (EA). The TG-DSC curves show that the hydrated compounds dehydrate in a single step of mass loss and the thermal stability of the anhydrous compound is little influenced from the atmosphere used. On the other hand, the mechanisms of thermal decomposition are profoundly influenced by the atmosphere used, as can also be observed in the EGA data. In addition, a comparison between two calorimetric techniques, Microwave Thermal Analysis (MWTA) and DSC, was made which showed similar profiles. Two evolved gas analysis (EGA) techniques: TG-DSC coupled to FTIR and HSM coupled to a quadrupole mass spectrometer (MS) were also used to provide additional information about the pyrolysis mechanism. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-10-01 2019-10-06T15:58:09Z 2019-10-06T15:58:09Z |
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.2018.09.018 Journal of Analytical and Applied Pyrolysis, v. 135, p. 67-75. 0165-2370 http://hdl.handle.net/11449/188127 10.1016/j.jaap.2018.09.018 2-s2.0-85054139377 |
url |
http://dx.doi.org/10.1016/j.jaap.2018.09.018 http://hdl.handle.net/11449/188127 |
identifier_str_mv |
Journal of Analytical and Applied Pyrolysis, v. 135, p. 67-75. 0165-2370 10.1016/j.jaap.2018.09.018 2-s2.0-85054139377 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Analytical and Applied Pyrolysis |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
67-75 |
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_ |
1799964930972057600 |