Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems

Detalhes bibliográficos
Autor(a) principal: Silva,M.A.Pereira da
Data de Publicação: 2003
Outros Autores: Cardoso,R.M., Schmal,M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100010
Resumo: The oxidation of propane on was studied with Pt-xWO3/Al2O3 catalysts was studied ,by varying the concentration of tungsten sublayer. Thermal analysis and XRD in situ showed that the enrichment of tungsten at the surface is associated with the formation of HxWO3 bronze. FTIR results with C3H8 and O2 indicated that the catalyst surface properties and the interaction between W and Pt were modified. These modified surface complexes prevented the formation of acetates and formate species. The addition of W increased the activity of Pt/Al2O3 towards in C3H8 oxidation. Tungsten was the main responsible for the stability of the bimetallic catalysts in the presence of water.
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spelling Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systemsPlatinumplatinum-tungsten catalystsAutomotive automotive catalystsPropane propane oxidationThe oxidation of propane on was studied with Pt-xWO3/Al2O3 catalysts was studied ,by varying the concentration of tungsten sublayer. Thermal analysis and XRD in situ showed that the enrichment of tungsten at the surface is associated with the formation of HxWO3 bronze. FTIR results with C3H8 and O2 indicated that the catalyst surface properties and the interaction between W and Pt were modified. These modified surface complexes prevented the formation of acetates and formate species. The addition of W increased the activity of Pt/Al2O3 towards in C3H8 oxidation. Tungsten was the main responsible for the stability of the bimetallic catalysts in the presence of water.Brazilian Society of Chemical Engineering2003-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100010Brazilian Journal of Chemical Engineering v.20 n.1 2003reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322003000100010info:eu-repo/semantics/openAccessSilva,M.A.Pereira daCardoso,R.M.Schmal,M.eng2003-03-19T00:00:00Zoai:scielo:S0104-66322003000100010Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2003-03-19T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
title Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
spellingShingle Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
Silva,M.A.Pereira da
Platinumplatinum-tungsten catalysts
Automotive automotive catalysts
Propane propane oxidation
title_short Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
title_full Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
title_fullStr Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
title_full_unstemmed Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
title_sort Propane oxidation on Pt-WO3/gamma -AL2O3 catalytic systems
author Silva,M.A.Pereira da
author_facet Silva,M.A.Pereira da
Cardoso,R.M.
Schmal,M.
author_role author
author2 Cardoso,R.M.
Schmal,M.
author2_role author
author
dc.contributor.author.fl_str_mv Silva,M.A.Pereira da
Cardoso,R.M.
Schmal,M.
dc.subject.por.fl_str_mv Platinumplatinum-tungsten catalysts
Automotive automotive catalysts
Propane propane oxidation
topic Platinumplatinum-tungsten catalysts
Automotive automotive catalysts
Propane propane oxidation
description The oxidation of propane on was studied with Pt-xWO3/Al2O3 catalysts was studied ,by varying the concentration of tungsten sublayer. Thermal analysis and XRD in situ showed that the enrichment of tungsten at the surface is associated with the formation of HxWO3 bronze. FTIR results with C3H8 and O2 indicated that the catalyst surface properties and the interaction between W and Pt were modified. These modified surface complexes prevented the formation of acetates and formate species. The addition of W increased the activity of Pt/Al2O3 towards in C3H8 oxidation. Tungsten was the main responsible for the stability of the bimetallic catalysts in the presence of water.
publishDate 2003
dc.date.none.fl_str_mv 2003-03-01
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=S0104-66322003000100010
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322003000100010
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322003000100010
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 Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.20 n.1 2003
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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