Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates.
Main Author: | |
---|---|
Publication Date: | 2002 |
Other Authors: | , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFOP |
Download full: | http://www.repositorio.ufop.br/handle/123456789/1221 |
Summary: | The thermal behavior of the compounds [κ3HB(N2C3H3)3]3Ln (Ln=Nd, Eu and Tb) was investigated through TG/DTG and DSC analyses. TG/DTG experiments were performed in a TGA-50 Shimadzu instrument under dynamic air atmosphere (50 ml min−1). DSC measurements were performed in a dynamic nitrogen atmosphere (50 ml min−1) at 10 °C min−1 heating rate using a DSC-50 Shimadzu differential calorimeter. For the TG/DTG and DSC analyses, an amount of 1.5–2.0 mg was used. From the TG curves, it was possible to show that all compounds are anhydrous, a one-step mass loss occurring between 200 and 450 °C, yielding a residual stable up to 900 °C. From the DTG curves it was found that decomposition temperatures decrease as the Ln(III) ionic radius decreases. DSC curves indicate that the compounds do not melt before the decomposition. For all three compounds, the decomposition process is exothermic. |
id |
UFOP_84b7b35b5e6964ce1715b0514473245b |
---|---|
oai_identifier_str |
oai:localhost:123456789/1221 |
network_acronym_str |
UFOP |
network_name_str |
Repositório Institucional da UFOP |
repository_id_str |
3233 |
spelling |
Miranda Júnior, PedroAricó, Eliana MariaMáduar, Marcelo FrancisMatos, Jivaldo do RosárioCarvalho, Carlos Alberto Alves de2012-08-01T12:39:03Z2012-08-01T12:39:03Z2002MIRANDA JÚNIOR, P. et al. Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. Journal of Alloys and Compounds, v. 344, n. 1-2, p. 105-109, out. 2002. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0925838802003183>. Acesso em: 01 ago. 2012.09258388http://www.repositorio.ufop.br/handle/123456789/1221The thermal behavior of the compounds [κ3HB(N2C3H3)3]3Ln (Ln=Nd, Eu and Tb) was investigated through TG/DTG and DSC analyses. TG/DTG experiments were performed in a TGA-50 Shimadzu instrument under dynamic air atmosphere (50 ml min−1). DSC measurements were performed in a dynamic nitrogen atmosphere (50 ml min−1) at 10 °C min−1 heating rate using a DSC-50 Shimadzu differential calorimeter. For the TG/DTG and DSC analyses, an amount of 1.5–2.0 mg was used. From the TG curves, it was possible to show that all compounds are anhydrous, a one-step mass loss occurring between 200 and 450 °C, yielding a residual stable up to 900 °C. From the DTG curves it was found that decomposition temperatures decrease as the Ln(III) ionic radius decreases. DSC curves indicate that the compounds do not melt before the decomposition. For all three compounds, the decomposition process is exothermic.LanthanidesThermal decompositionScorpionatesStudy of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleO periódico Journal of Alloys and Compounds concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3333160361129.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPORIGINALARTIGO_StudyThermalDecomposition.pdfARTIGO_StudyThermalDecomposition.pdfapplication/pdf509138http://www.repositorio.ufop.br/bitstream/123456789/1221/1/ARTIGO_StudyThermalDecomposition.pdf853279f3ba44a01e85f3b453bae99a22MD51123456789/12212019-02-28 10:23:21.794oai:localhost:123456789/1221Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-02-28T15:23:21Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
title |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
spellingShingle |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. Miranda Júnior, Pedro Lanthanides Thermal decomposition Scorpionates |
title_short |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
title_full |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
title_fullStr |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
title_full_unstemmed |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
title_sort |
Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. |
author |
Miranda Júnior, Pedro |
author_facet |
Miranda Júnior, Pedro Aricó, Eliana Maria Máduar, Marcelo Francis Matos, Jivaldo do Rosário Carvalho, Carlos Alberto Alves de |
author_role |
author |
author2 |
Aricó, Eliana Maria Máduar, Marcelo Francis Matos, Jivaldo do Rosário Carvalho, Carlos Alberto Alves de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Miranda Júnior, Pedro Aricó, Eliana Maria Máduar, Marcelo Francis Matos, Jivaldo do Rosário Carvalho, Carlos Alberto Alves de |
dc.subject.por.fl_str_mv |
Lanthanides Thermal decomposition Scorpionates |
topic |
Lanthanides Thermal decomposition Scorpionates |
description |
The thermal behavior of the compounds [κ3HB(N2C3H3)3]3Ln (Ln=Nd, Eu and Tb) was investigated through TG/DTG and DSC analyses. TG/DTG experiments were performed in a TGA-50 Shimadzu instrument under dynamic air atmosphere (50 ml min−1). DSC measurements were performed in a dynamic nitrogen atmosphere (50 ml min−1) at 10 °C min−1 heating rate using a DSC-50 Shimadzu differential calorimeter. For the TG/DTG and DSC analyses, an amount of 1.5–2.0 mg was used. From the TG curves, it was possible to show that all compounds are anhydrous, a one-step mass loss occurring between 200 and 450 °C, yielding a residual stable up to 900 °C. From the DTG curves it was found that decomposition temperatures decrease as the Ln(III) ionic radius decreases. DSC curves indicate that the compounds do not melt before the decomposition. For all three compounds, the decomposition process is exothermic. |
publishDate |
2002 |
dc.date.issued.fl_str_mv |
2002 |
dc.date.accessioned.fl_str_mv |
2012-08-01T12:39:03Z |
dc.date.available.fl_str_mv |
2012-08-01T12:39:03Z |
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.citation.fl_str_mv |
MIRANDA JÚNIOR, P. et al. Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. Journal of Alloys and Compounds, v. 344, n. 1-2, p. 105-109, out. 2002. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0925838802003183>. Acesso em: 01 ago. 2012. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/1221 |
dc.identifier.issn.none.fl_str_mv |
09258388 |
identifier_str_mv |
MIRANDA JÚNIOR, P. et al. Study of the thermal decomposition of the Nd(III), Eu(III) and Tb(III) scorpionates. Journal of Alloys and Compounds, v. 344, n. 1-2, p. 105-109, out. 2002. Disponível em: <https://www.sciencedirect.com/science/article/pii/S0925838802003183>. Acesso em: 01 ago. 2012. 09258388 |
url |
http://www.repositorio.ufop.br/handle/123456789/1221 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
instname_str |
Universidade Federal de Ouro Preto (UFOP) |
instacron_str |
UFOP |
institution |
UFOP |
reponame_str |
Repositório Institucional da UFOP |
collection |
Repositório Institucional da UFOP |
bitstream.url.fl_str_mv |
http://www.repositorio.ufop.br/bitstream/123456789/1221/1/ARTIGO_StudyThermalDecomposition.pdf |
bitstream.checksum.fl_str_mv |
853279f3ba44a01e85f3b453bae99a22 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP) |
repository.mail.fl_str_mv |
repositorio@ufop.edu.br |
_version_ |
1801685721385271296 |