New method for the immobilization of nitroxyl radical on mesoporous silica
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/16950 https://doi.org/10.1016/j.micromeso.2014.10.019 |
Resumo: | This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4- hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using ,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples. |
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7160 |
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New method for the immobilization of nitroxyl radical on mesoporous silicaSBA-15MCM-41TEMPOOxidaçãoThis work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4- hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using ,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples.elsevier/ Microporous and Mesoporous Materials2016-01-27T17:29:41Z2016-01-272015-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/16950http://hdl.handle.net/10174/16950https://doi.org/10.1016/j.micromeso.2014.10.019porMicroporous and Mesoporous Materials 203 (2015) 63–721387-1811Departamento de Químicajefc@uevora.ptndndndndndnd433Castanheiro, JEMachado, ACasimiro, MFerreira, LRamos, AVital, JFonseca, Iinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T19:04:08Zoai:dspace.uevora.pt:10174/16950Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:09:13.131626Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
New method for the immobilization of nitroxyl radical on mesoporous silica |
title |
New method for the immobilization of nitroxyl radical on mesoporous silica |
spellingShingle |
New method for the immobilization of nitroxyl radical on mesoporous silica Castanheiro, JE SBA-15 MCM-41 TEMPO Oxidação |
title_short |
New method for the immobilization of nitroxyl radical on mesoporous silica |
title_full |
New method for the immobilization of nitroxyl radical on mesoporous silica |
title_fullStr |
New method for the immobilization of nitroxyl radical on mesoporous silica |
title_full_unstemmed |
New method for the immobilization of nitroxyl radical on mesoporous silica |
title_sort |
New method for the immobilization of nitroxyl radical on mesoporous silica |
author |
Castanheiro, JE |
author_facet |
Castanheiro, JE Machado, A Casimiro, M Ferreira, L Ramos, A Vital, J Fonseca, I |
author_role |
author |
author2 |
Machado, A Casimiro, M Ferreira, L Ramos, A Vital, J Fonseca, I |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Castanheiro, JE Machado, A Casimiro, M Ferreira, L Ramos, A Vital, J Fonseca, I |
dc.subject.por.fl_str_mv |
SBA-15 MCM-41 TEMPO Oxidação |
topic |
SBA-15 MCM-41 TEMPO Oxidação |
description |
This work reports the covalent attachment of 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (4- hydroxy-TEMPO) on the mesoporous silicas MCM-41 and SBA-15, by using ,4-diisocyanatobutane as a binder. The catalysts were characterized by nitrogen adsorption/desorption, XRD, TEM, TGA, DSC and FTIR spectroscopy. Catalytic tests were performed on the liquid phase oxidation of benzyl alcohol and the secondary alcohol isoborneol by using tert-butyl hydroperoxide as oxidant. The catalysts showed good activity and stability in consecutive oxidation experiments with the same catalyst samples. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-02-01T00:00:00Z 2016-01-27T17:29:41Z 2016-01-27 |
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://hdl.handle.net/10174/16950 http://hdl.handle.net/10174/16950 https://doi.org/10.1016/j.micromeso.2014.10.019 |
url |
http://hdl.handle.net/10174/16950 https://doi.org/10.1016/j.micromeso.2014.10.019 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Microporous and Mesoporous Materials 203 (2015) 63–72 1387-1811 Departamento de Química jefc@uevora.pt nd nd nd nd nd nd 433 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
elsevier/ Microporous and Mesoporous Materials |
publisher.none.fl_str_mv |
elsevier/ Microporous and Mesoporous Materials |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799136574839980032 |