Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation

Detalhes bibliográficos
Autor(a) principal: Caetano, B. L.
Data de Publicação: 2006
Outros Autores: Rocha, L. A., Molina, E., Rocha, Z. N., Ricci, G., Calefi, Paulo Sergio, Lima, O. J. de, Mello, C., Nassar, E. J., Ciuffi, K. J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6494
Resumo: RESTRITO
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spelling Caetano, B. L.Rocha, L. A.Molina, E.Rocha, Z. N.Ricci, G.Calefi, Paulo SergioLima, O. J. deMello, C.Nassar, E. J.Ciuffi, K. J.Caetano, B. L.Rocha, L. A.Molina, E.Rocha, Z. N.Ricci, G.Calefi, Paulo SergioLima, O. J. deMello, C.Nassar, E. J.Ciuffi, K. J.2012-07-26T18:09:43Z2012-07-26T18:09:43Z20060926-860Xhttp://www.repositorio.ufba.br/ri/handle/ri/6494v.311, n.1RESTRITOThis work describes the optimized conditions for the preparation of cobalt aluminum silicate complexes through a simplified methodology. These materials, designated CoAlSi-NHG, were obtained by a non-hydrolytic sol–gel route involving the condensation of aluminum chloride with diisopropylether in the presence of cobalt chloride, followed by reaction with tetraethoxysilane. The obtained solids were heat-treated at various temperatures, and the resulting materials were characterized by ultraviolet-visible spectroscopy, X-ray diffraction, 29Si and 27Al NMR, transmission electron microscopy, surface area, thermogravimetric analysis, and differential thermal analysis. All the materials consisted of an aluminum silicate matrix, and they all remained amorphous throughout heat treatment up to 750 °C. The onset of crystallization took place at 1000 °C, and the formation of mullite was observed thereafter. All the CoAlSi-NHGs obtained in this work via different heat treatments were used as catalysts in the oxidation of (Z)-cyclooctene, cyclohexane, and n-heptane by iodozylbenzene. The non-hydrolytic sol–gel route led to the obtention of extremely interesting catalytic systems capable of selectively oxidizing various types of reactions. The intermediate species is the oxidizing species oxo-cobalt, which is similar to the active species obtained in the case of enzymes such as cytochrome P-450.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2012-07-26T18:09:43Z No. of bitstreams: 1 BB.pdf: 585541 bytes, checksum: d655336a0959be5aec726e2963cd765c (MD5)Made available in DSpace on 2012-07-26T18:09:43Z (GMT). No. of bitstreams: 1 BB.pdf: 585541 bytes, checksum: d655336a0959be5aec726e2963cd765c (MD5) Previous issue date: 2006SalvadorApplied Catalysis A: Generalhttp://dx.doi.org/10.1016/j.apcata.2006.06.028reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACobaltNon-hydrolytic routeSelective oxidationCobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidationApplied Catalysis A: Generalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINALBB.pdfBB.pdfapplication/pdf585541https://repositorio.ufba.br/bitstream/ri/6494/1/BB.pdfd655336a0959be5aec726e2963cd765cMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/6494/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTBB.pdf.txtBB.pdf.txtExtracted texttext/plain54270https://repositorio.ufba.br/bitstream/ri/6494/3/BB.pdf.txta8428442e26cb910847e1adf1900ef04MD53ri/64942022-08-08 13:17:40.749oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:40Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
dc.title.alternative.pt_BR.fl_str_mv Applied Catalysis A: General
title Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
spellingShingle Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
Caetano, B. L.
Cobalt
Non-hydrolytic route
Selective oxidation
title_short Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
title_full Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
title_fullStr Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
title_full_unstemmed Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
title_sort Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
author Caetano, B. L.
author_facet Caetano, B. L.
Rocha, L. A.
Molina, E.
Rocha, Z. N.
Ricci, G.
Calefi, Paulo Sergio
Lima, O. J. de
Mello, C.
Nassar, E. J.
Ciuffi, K. J.
author_role author
author2 Rocha, L. A.
Molina, E.
Rocha, Z. N.
Ricci, G.
Calefi, Paulo Sergio
Lima, O. J. de
Mello, C.
Nassar, E. J.
Ciuffi, K. J.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Caetano, B. L.
Rocha, L. A.
Molina, E.
Rocha, Z. N.
Ricci, G.
Calefi, Paulo Sergio
Lima, O. J. de
Mello, C.
Nassar, E. J.
Ciuffi, K. J.
Caetano, B. L.
Rocha, L. A.
Molina, E.
Rocha, Z. N.
Ricci, G.
Calefi, Paulo Sergio
Lima, O. J. de
Mello, C.
Nassar, E. J.
Ciuffi, K. J.
dc.subject.por.fl_str_mv Cobalt
Non-hydrolytic route
Selective oxidation
topic Cobalt
Non-hydrolytic route
Selective oxidation
description RESTRITO
publishDate 2006
dc.date.issued.fl_str_mv 2006
dc.date.accessioned.fl_str_mv 2012-07-26T18:09:43Z
dc.date.available.fl_str_mv 2012-07-26T18:09:43Z
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://www.repositorio.ufba.br/ri/handle/ri/6494
dc.identifier.issn.none.fl_str_mv 0926-860X
dc.identifier.number.pt_BR.fl_str_mv v.311, n.1
identifier_str_mv 0926-860X
v.311, n.1
url http://www.repositorio.ufba.br/ri/handle/ri/6494
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.publisher.none.fl_str_mv Applied Catalysis A: General
publisher.none.fl_str_mv Applied Catalysis A: General
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.apcata.2006.06.028
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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