Effect of iron on the properties of sulfated zirconia

Autores
Costa Pereira, Amalia Luz; Marchetti, Sergio Gustavo; Albornoz, Alberto; Reyes , Patricio; Oportus, Marcelo; Rangel. Maria do Carmo
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Sulfated zirconia has found several industrial applications, mainly for catalyzing reactions which require acidic sites. In order to control the properties of this solid, the effect of iron on the sulfated zirconia properties was studied in this work. Samples with different iron to zirconium molar ratios were prepared by the sol–gel method, followed by sulfation and characterization by several techniques. It was found that all iron ions go into zirconia when Fe/Zr 0.4. However, when higher amounts of iron (Fe/Zr 0.8) are added, hematite is segregated. Different phases can be obtained depending on the iron content and on the sulfur presence. Iron increases the specific surface areas of both sulfated and pure zirconia but does not affect the incorporation of sulfate groups as compared to pure zirconia. Iron also makes the solids thermally more stable and modifies the sulfated zirconia surface creating acidic sites with medium strength. Therefore, it is possible to control the acidity of the solid doping the sulfated zirconia with iron. All these changes are very useful for catalytic applications.
Fil: Costa Pereira, Amalia Luz. Universidade Federal da Bahia. Instituto de Quımica ; Brasil
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Albornoz, Alberto. Instituto Venezolano de Investigaciones Cientıficas. Centro de Quımica; Venezuela
Fil: Reyes , Patricio. Universidad de Concepción. Facultad de Ciencias Químicas; Chile
Fil: Oportus, Marcelo. Universidad de Concepción. Facultad de Ciencias Químicas; Chile
Fil: Rangel. Maria do Carmo. Universidade Federal da Bahia. Instituto de Química; Brasil
Materia
Iron-Doped Zirconia
Sulfated Iron Oxide
Sulfated Zirconia
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/22666
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Effect of iron on the properties of sulfated zirconiaCosta Pereira, Amalia LuzMarchetti, Sergio GustavoAlbornoz, AlbertoReyes , PatricioOportus, MarceloRangel. Maria do CarmoIron-Doped ZirconiaSulfated Iron OxideSulfated Zirconiahttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Sulfated zirconia has found several industrial applications, mainly for catalyzing reactions which require acidic sites. In order to control the properties of this solid, the effect of iron on the sulfated zirconia properties was studied in this work. Samples with different iron to zirconium molar ratios were prepared by the sol–gel method, followed by sulfation and characterization by several techniques. It was found that all iron ions go into zirconia when Fe/Zr 0.4. However, when higher amounts of iron (Fe/Zr 0.8) are added, hematite is segregated. Different phases can be obtained depending on the iron content and on the sulfur presence. Iron increases the specific surface areas of both sulfated and pure zirconia but does not affect the incorporation of sulfate groups as compared to pure zirconia. Iron also makes the solids thermally more stable and modifies the sulfated zirconia surface creating acidic sites with medium strength. Therefore, it is possible to control the acidity of the solid doping the sulfated zirconia with iron. All these changes are very useful for catalytic applications.Fil: Costa Pereira, Amalia Luz. Universidade Federal da Bahia. Instituto de Quımica ; BrasilFil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; ArgentinaFil: Albornoz, Alberto. Instituto Venezolano de Investigaciones Cientıficas. Centro de Quımica; VenezuelaFil: Reyes , Patricio. Universidad de Concepción. Facultad de Ciencias Químicas; ChileFil: Oportus, Marcelo. Universidad de Concepción. Facultad de Ciencias Químicas; ChileFil: Rangel. Maria do Carmo. Universidade Federal da Bahia. Instituto de Química; BrasilElsevier Science2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/22666Costa Pereira, Amalia Luz; Marchetti, Sergio Gustavo; Albornoz, Alberto; Reyes , Patricio; Oportus, Marcelo; et al.; Effect of iron on the properties of sulfated zirconia; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 12-2008; 187-1980926-860XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X07006126info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2007.09.042info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:08:35Zoai:ri.conicet.gov.ar:11336/22666instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:08:35.534CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of iron on the properties of sulfated zirconia
title Effect of iron on the properties of sulfated zirconia
spellingShingle Effect of iron on the properties of sulfated zirconia
Costa Pereira, Amalia Luz
Iron-Doped Zirconia
Sulfated Iron Oxide
Sulfated Zirconia
title_short Effect of iron on the properties of sulfated zirconia
title_full Effect of iron on the properties of sulfated zirconia
title_fullStr Effect of iron on the properties of sulfated zirconia
title_full_unstemmed Effect of iron on the properties of sulfated zirconia
title_sort Effect of iron on the properties of sulfated zirconia
dc.creator.none.fl_str_mv Costa Pereira, Amalia Luz
Marchetti, Sergio Gustavo
Albornoz, Alberto
Reyes , Patricio
Oportus, Marcelo
Rangel. Maria do Carmo
author Costa Pereira, Amalia Luz
author_facet Costa Pereira, Amalia Luz
Marchetti, Sergio Gustavo
Albornoz, Alberto
Reyes , Patricio
Oportus, Marcelo
Rangel. Maria do Carmo
author_role author
author2 Marchetti, Sergio Gustavo
Albornoz, Alberto
Reyes , Patricio
Oportus, Marcelo
Rangel. Maria do Carmo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Iron-Doped Zirconia
Sulfated Iron Oxide
Sulfated Zirconia
topic Iron-Doped Zirconia
Sulfated Iron Oxide
Sulfated Zirconia
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Sulfated zirconia has found several industrial applications, mainly for catalyzing reactions which require acidic sites. In order to control the properties of this solid, the effect of iron on the sulfated zirconia properties was studied in this work. Samples with different iron to zirconium molar ratios were prepared by the sol–gel method, followed by sulfation and characterization by several techniques. It was found that all iron ions go into zirconia when Fe/Zr 0.4. However, when higher amounts of iron (Fe/Zr 0.8) are added, hematite is segregated. Different phases can be obtained depending on the iron content and on the sulfur presence. Iron increases the specific surface areas of both sulfated and pure zirconia but does not affect the incorporation of sulfate groups as compared to pure zirconia. Iron also makes the solids thermally more stable and modifies the sulfated zirconia surface creating acidic sites with medium strength. Therefore, it is possible to control the acidity of the solid doping the sulfated zirconia with iron. All these changes are very useful for catalytic applications.
Fil: Costa Pereira, Amalia Luz. Universidade Federal da Bahia. Instituto de Quımica ; Brasil
Fil: Marchetti, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco". Universidad Nacional de la Plata. Facultad de Ciencias Exactas. Centro de Investigación y Desarrollo en Ciencias Aplicadas; Argentina
Fil: Albornoz, Alberto. Instituto Venezolano de Investigaciones Cientıficas. Centro de Quımica; Venezuela
Fil: Reyes , Patricio. Universidad de Concepción. Facultad de Ciencias Químicas; Chile
Fil: Oportus, Marcelo. Universidad de Concepción. Facultad de Ciencias Químicas; Chile
Fil: Rangel. Maria do Carmo. Universidade Federal da Bahia. Instituto de Química; Brasil
description Sulfated zirconia has found several industrial applications, mainly for catalyzing reactions which require acidic sites. In order to control the properties of this solid, the effect of iron on the sulfated zirconia properties was studied in this work. Samples with different iron to zirconium molar ratios were prepared by the sol–gel method, followed by sulfation and characterization by several techniques. It was found that all iron ions go into zirconia when Fe/Zr 0.4. However, when higher amounts of iron (Fe/Zr 0.8) are added, hematite is segregated. Different phases can be obtained depending on the iron content and on the sulfur presence. Iron increases the specific surface areas of both sulfated and pure zirconia but does not affect the incorporation of sulfate groups as compared to pure zirconia. Iron also makes the solids thermally more stable and modifies the sulfated zirconia surface creating acidic sites with medium strength. Therefore, it is possible to control the acidity of the solid doping the sulfated zirconia with iron. All these changes are very useful for catalytic applications.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/22666
Costa Pereira, Amalia Luz; Marchetti, Sergio Gustavo; Albornoz, Alberto; Reyes , Patricio; Oportus, Marcelo; et al.; Effect of iron on the properties of sulfated zirconia; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 12-2008; 187-198
0926-860X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/22666
identifier_str_mv Costa Pereira, Amalia Luz; Marchetti, Sergio Gustavo; Albornoz, Alberto; Reyes , Patricio; Oportus, Marcelo; et al.; Effect of iron on the properties of sulfated zirconia; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 12-2008; 187-198
0926-860X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X07006126
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.apcata.2007.09.042
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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