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dc.contributor.author
Costa Pereira, Amalia Luz
dc.contributor.author
Marchetti, Sergio Gustavo
dc.contributor.author
Albornoz, Alberto
dc.contributor.author
Reyes , Patricio
dc.contributor.author
Oportus, Marcelo
dc.contributor.author
Rangel. Maria do Carmo
dc.date.available
2017-08-18T15:34:32Z
dc.date.issued
2008-12
dc.identifier.citation
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
dc.identifier.issn
0926-860X
dc.identifier.uri
http://hdl.handle.net/11336/22666
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Iron-Doped Zirconia
dc.subject
Sulfated Iron Oxide
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Sulfated Zirconia
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Effect of iron on the properties of sulfated zirconia
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-07-10T13:23:23Z
dc.journal.volume
334
dc.journal.number
1-2
dc.journal.pagination
187-198
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Costa Pereira, Amalia Luz. Universidade Federal da Bahia. Instituto de Quımica ; Brasil
dc.description.fil
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
dc.description.fil
Fil: Albornoz, Alberto. Instituto Venezolano de Investigaciones Cientıficas. Centro de Quımica; Venezuela
dc.description.fil
Fil: Reyes , Patricio. Universidad de Concepción. Facultad de Ciencias Químicas; Chile
dc.description.fil
Fil: Oportus, Marcelo. Universidad de Concepción. Facultad de Ciencias Químicas; Chile
dc.description.fil
Fil: Rangel. Maria do Carmo. Universidade Federal da Bahia. Instituto de Química; Brasil
dc.journal.title
Applied Catalysis A: General
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0926860X07006126
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.apcata.2007.09.042


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