Synthesis and characterization of novel ZrO2-SiO2 mixed oxides

Detalhes bibliográficos
Autor(a) principal: Santos,Milena Araújo Ferreira e
Data de Publicação: 2014
Outros Autores: Lôbo,Ivon Pinheiro, Cruz,Rosenira Serpa da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300023
Resumo: In this study the mixed oxides ZrO2-SiO2, were synthesized by the sol-gel method with a molar ratio of 95:5 (Si/metal) and characterized by X-ray diffraction, absorption-desorption of N2, Fourier transform infrared spectroscopy, thermal gravimetric analysis, temperature-programmed desorption of ammonia, and acidity test by titration. The synthesized materials, which are amorphous to X-rays, are composed of a mixture of micro- and mesopores. They show a higher acid strength than the separate oxides, indicating that the ZrO2 is highly dispersed in the silica matrix.
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spelling Synthesis and characterization of novel ZrO2-SiO2 mixed oxidesmixed oxidesheterogeneous catalystmethylationsulfationIn this study the mixed oxides ZrO2-SiO2, were synthesized by the sol-gel method with a molar ratio of 95:5 (Si/metal) and characterized by X-ray diffraction, absorption-desorption of N2, Fourier transform infrared spectroscopy, thermal gravimetric analysis, temperature-programmed desorption of ammonia, and acidity test by titration. The synthesized materials, which are amorphous to X-rays, are composed of a mixture of micro- and mesopores. They show a higher acid strength than the separate oxides, indicating that the ZrO2 is highly dispersed in the silica matrix.ABM, ABC, ABPol2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300023Materials Research v.17 n.3 2014reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392014005000046info:eu-repo/semantics/openAccessSantos,Milena Araújo Ferreira eLôbo,Ivon PinheiroCruz,Rosenira Serpa daeng2014-06-18T00:00:00Zoai:scielo:S1516-14392014000300023Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2014-06-18T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
title Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
spellingShingle Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
Santos,Milena Araújo Ferreira e
mixed oxides
heterogeneous catalyst
methylation
sulfation
title_short Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
title_full Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
title_fullStr Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
title_full_unstemmed Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
title_sort Synthesis and characterization of novel ZrO2-SiO2 mixed oxides
author Santos,Milena Araújo Ferreira e
author_facet Santos,Milena Araújo Ferreira e
Lôbo,Ivon Pinheiro
Cruz,Rosenira Serpa da
author_role author
author2 Lôbo,Ivon Pinheiro
Cruz,Rosenira Serpa da
author2_role author
author
dc.contributor.author.fl_str_mv Santos,Milena Araújo Ferreira e
Lôbo,Ivon Pinheiro
Cruz,Rosenira Serpa da
dc.subject.por.fl_str_mv mixed oxides
heterogeneous catalyst
methylation
sulfation
topic mixed oxides
heterogeneous catalyst
methylation
sulfation
description In this study the mixed oxides ZrO2-SiO2, were synthesized by the sol-gel method with a molar ratio of 95:5 (Si/metal) and characterized by X-ray diffraction, absorption-desorption of N2, Fourier transform infrared spectroscopy, thermal gravimetric analysis, temperature-programmed desorption of ammonia, and acidity test by titration. The synthesized materials, which are amorphous to X-rays, are composed of a mixture of micro- and mesopores. They show a higher acid strength than the separate oxides, indicating that the ZrO2 is highly dispersed in the silica matrix.
publishDate 2014
dc.date.none.fl_str_mv 2014-06-01
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=S1516-14392014000300023
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000300023
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392014005000046
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 ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.17 n.3 2014
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212664700043264

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