Cobalt aluminum silicate complexes prepared by the non-hydrolytic sol–gel route and their catalytic activity in hydrocarbon oxidation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2006 |
Outros Autores: | , , , , , , , , |
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 |
id |
UFBA-2_5c6ab0e3b16ba3cf4b20c1b1aa42f372 |
---|---|
oai_identifier_str |
oai:repositorio.ufba.br:ri/6494 |
network_acronym_str |
UFBA-2 |
network_name_str |
Repositório Institucional da UFBA |
repository_id_str |
1932 |
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:ri/6494VGVybW8gZGUgTGljZW7vv71hLCBu77+9byBleGNsdXNpdm8sIHBhcmEgbyBkZXDvv71zaXRvIG5vIHJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVRkJBCgogICAgUGVsbyBwcm9jZXNzbyBkZSBzdWJtaXNz77+9byBkZSBkb2N1bWVudG9zLCBvIGF1dG9yIG91IHNldQpyZXByZXNlbnRhbnRlIGxlZ2FsLCBhbyBhY2VpdGFyIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBjb25jZWRlIGFvClJlcG9zaXTvv71yaW8gSW5zdGl0dWNpb25hbCBkYSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkYSBCYWhpYSBvIGRpcmVpdG8KZGUgbWFudGVyIHVtYSBj77+9cGlhIGVtIHNldSByZXBvc2l077+9cmlvIGNvbSBhIGZpbmFsaWRhZGUsIHByaW1laXJhLCAKZGUgcHJlc2VydmHvv73vv71vLiBFc3NlcyB0ZXJtb3MsIG7vv71vIGV4Y2x1c2l2b3MsIG1hbnTvv71tIG9zIGRpcmVpdG9zIGRlIAphdXRvci9jb3B5cmlnaHQsIG1hcyBlbnRlbmRlIG8gZG9jdW1lbnRvIGNvbW8gcGFydGUgZG8gYWNlcnZvIGludGVsZWN0dWFsIGRlc3NhIFVuaXZlcnNpZGFkZS4gCgogICAgUGFyYSBvcyBkb2N1bWVudG9zIHB1YmxpY2Fkb3MgY29tIHJlcGFzc2UgZGUgZGlyZWl0b3MgZGUgZGlzdHJpYnVp77+977+9bywgZXNzZSB0ZXJtbyBkZSBsaWNlbu+/vWEgZW50ZW5kZSBxdWU6IAoKICAgIE1hbnRlbmRvIG9zICBkaXJlaXRvcyBhdXRvcmFpcywgcmVwYXNzYWRvcyBhIHRlcmNlaXJvcywgZW0gY2FzbyAKZGUgcHVibGljYe+/ve+/vWVzLCBvIHJlcG9zaXTvv71yaW8gcG9kZSByZXN0cmluZ2lyIG8gYWNlc3NvIGFvIHRleHRvIAppbnRlZ3JhbCwgbWFzIGxpYmVyYSBhcyBpbmZvcm1h77+977+9ZXMgc29icmUgbyBkb2N1bWVudG8gKE1ldGFkYWRvcyBkZXNjcml0aXZvcykuCgogRGVzdGEgZm9ybWEsIGF0ZW5kZW5kbyBhb3MgYW5zZWlvcyBkZXNzYSB1bml2ZXJzaWRhZGUgCmVtIG1hbnRlciBzdWEgcHJvZHXvv73vv71vIGNpZW5077+9ZmljYSBjb20gYXMgcmVzdHJp77+977+9ZXMgaW1wb3N0YXMgcGVsb3MgCmVkaXRvcmVzIGRlIHBlcmnvv71kaWNvcy4gCgogICAgUGFyYSBhcyBwdWJsaWNh77+977+9ZXMgZW0gaW5pY2lhdGl2YXMgcXVlIHNlZ3VlbSBhIHBvbO+/vXRpY2EgZGUgCkFjZXNzbyBBYmVydG8sIG9zIGRlcO+/vXNpdG9zIGNvbXB1bHPvv71yaW9zIG5lc3NlIHJlcG9zaXTvv71yaW8gbWFudO+/vW0gCm9zIGRpcmVpdG9zIGF1dG9yYWlzLCBtYXMgbWFudO+/vW0gbyBhY2Vzc28gaXJyZXN0cml0byBhbyBtZXRhZGFkb3MgCmUgdGV4dG8gY29tcGxldG8uIEFzc2ltLCBhIGFjZWl0Ye+/ve+/vW8gZGVzc2UgdGVybW8gbu+/vW8gbmVjZXNzaXRhIGRlIApjb25zZW50aW1lbnRvIHBvciBwYXJ0ZSBkZSBhdXRvcmVzL2RldGVudG9yZXMgZG9zIGRpcmVpdG9zLCBwb3IgCmVzdGFyZW0gZW0gaW5pY2lhdGl2YXMgZGUgYWNlc3NvIGFiZXJ0by4KCiAgICBFbSBhbWJvcyBvIGNhc28sIGVzc2UgdGVybW8gZGUgbGljZW7vv71hLCBwb2RlIHNlciBhY2VpdG8gcGVsbyAKYXV0b3IsIGRldGVudG9yZXMgZGUgZGlyZWl0b3MgZS9vdSB0ZXJjZWlyb3MgYW1wYXJhZG9zIHBlbGEgCnVuaXZlcnNpZGFkZS4gRGV2aWRvIGFvcyBkaWZlcmVudGVzIHByb2Nlc3NvcyBwZWxvIHF1YWwgYSBzdWJtaXNz77+9byAKcG9kZSBvY29ycmVyLCBvIHJlcG9zaXTvv71yaW8gcGVybWl0ZSBhIGFjZWl0Ye+/ve+/vW8gZGEgbGljZW7vv71hIHBvciAKdGVyY2Vpcm9zLCBzb21lbnRlIG5vcyBjYXNvcyBkZSBkb2N1bWVudG9zIHByb2R1emlkb3MgcG9yIGludGVncmFudGVzIApkYSBVRkJBIGUgc3VibWV0aWRvcyBwb3IgcGVzc29hcyBhbXBhcmFkYXMgcG9yIGVzdGEgaW5zdGl0dWnvv73vv71vLgo=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 instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
instname_str |
Universidade Federal da Bahia (UFBA) |
instacron_str |
UFBA |
institution |
UFBA |
reponame_str |
Repositório Institucional da UFBA |
collection |
Repositório Institucional da UFBA |
bitstream.url.fl_str_mv |
https://repositorio.ufba.br/bitstream/ri/6494/1/BB.pdf https://repositorio.ufba.br/bitstream/ri/6494/2/license.txt https://repositorio.ufba.br/bitstream/ri/6494/3/BB.pdf.txt |
bitstream.checksum.fl_str_mv |
d655336a0959be5aec726e2963cd765c 1b89a9a0548218172d7c829f87a0eab9 a8428442e26cb910847e1adf1900ef04 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA) |
repository.mail.fl_str_mv |
|
_version_ |
1808459404452823040 |