Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Journal of the Brazilian Chemical Society (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001202444 |
Resumo: | The diffusion restrictions of the reactants caused by the micropores limit the use of zeolites for processing heavy molecules. This demands the development of materials that combine the properties of zeolites and mesoporous materials. With this goal in mind, the influence of temperature and time of seed aging on the properties of beta zeolite/MCM-41 materials obtained by mesostructuration/ crystallization was studied in this work. It was noted that the most suitable conditions to obtain the crystalline microporous phase of beta zeolite and the MCM-41 mesoporous phase was 140 °C, during 24 h of seed aging. At the other temperatures (60 and 90 °C) poor crystallized solids and a lamellar phase of MCM-50 were produced. On the other hand, increasing time of aging seeds bigger crystals of crystalline beta zeolite and less organized mesoporous phases were obtained at 140 °C. |
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Journal of the Brazilian Chemical Society (Online) |
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Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materialsbeta zeolitemesostructurationMCM-41seed agingmesoporous orderingThe diffusion restrictions of the reactants caused by the micropores limit the use of zeolites for processing heavy molecules. This demands the development of materials that combine the properties of zeolites and mesoporous materials. With this goal in mind, the influence of temperature and time of seed aging on the properties of beta zeolite/MCM-41 materials obtained by mesostructuration/ crystallization was studied in this work. It was noted that the most suitable conditions to obtain the crystalline microporous phase of beta zeolite and the MCM-41 mesoporous phase was 140 °C, during 24 h of seed aging. At the other temperatures (60 and 90 °C) poor crystallized solids and a lamellar phase of MCM-50 were produced. On the other hand, increasing time of aging seeds bigger crystals of crystalline beta zeolite and less organized mesoporous phases were obtained at 140 °C.Sociedade Brasileira de Química2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001202444Journal of the Brazilian Chemical Society v.25 n.12 2014reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20140271info:eu-repo/semantics/openAccessSaulo T. F.,GreccoErnesto A.,Urquieta-GonzálezPatrício,ReyesMarcelo,OportusMaria do Carmo,Rangeleng2015-11-23T00:00:00Zoai:scielo:S0103-50532014001202444Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2015-11-23T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
title |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
spellingShingle |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials Saulo T. F.,Grecco beta zeolite mesostructuration MCM-41 seed aging mesoporous ordering |
title_short |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
title_full |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
title_fullStr |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
title_full_unstemmed |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
title_sort |
Influence of Temperature and Time of Seed Aging on the Properties of Beta Zeolite/MCM-41 Materials |
author |
Saulo T. F.,Grecco |
author_facet |
Saulo T. F.,Grecco Ernesto A.,Urquieta-González Patrício,Reyes Marcelo,Oportus Maria do Carmo,Rangel |
author_role |
author |
author2 |
Ernesto A.,Urquieta-González Patrício,Reyes Marcelo,Oportus Maria do Carmo,Rangel |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Saulo T. F.,Grecco Ernesto A.,Urquieta-González Patrício,Reyes Marcelo,Oportus Maria do Carmo,Rangel |
dc.subject.por.fl_str_mv |
beta zeolite mesostructuration MCM-41 seed aging mesoporous ordering |
topic |
beta zeolite mesostructuration MCM-41 seed aging mesoporous ordering |
description |
The diffusion restrictions of the reactants caused by the micropores limit the use of zeolites for processing heavy molecules. This demands the development of materials that combine the properties of zeolites and mesoporous materials. With this goal in mind, the influence of temperature and time of seed aging on the properties of beta zeolite/MCM-41 materials obtained by mesostructuration/ crystallization was studied in this work. It was noted that the most suitable conditions to obtain the crystalline microporous phase of beta zeolite and the MCM-41 mesoporous phase was 140 °C, during 24 h of seed aging. At the other temperatures (60 and 90 °C) poor crystallized solids and a lamellar phase of MCM-50 were produced. On the other hand, increasing time of aging seeds bigger crystals of crystalline beta zeolite and less organized mesoporous phases were obtained at 140 °C. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001202444 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532014001202444 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.5935/0103-5053.20140271 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Journal of the Brazilian Chemical Society v.25 n.12 2014 reponame:Journal of the Brazilian Chemical Society (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Journal of the Brazilian Chemical Society (Online) |
collection |
Journal of the Brazilian Chemical Society (Online) |
repository.name.fl_str_mv |
Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
||office@jbcs.sbq.org.br |
_version_ |
1750318176624705536 |