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dc.contributor.author
Vazquez, Patricia Graciela
dc.contributor.author
Quaranta, Nancy Esther
dc.date.available
2018-08-08T17:46:05Z
dc.date.issued
2006-08-16
dc.identifier.citation
Vazquez, Patricia Graciela; Quaranta, Nancy Esther; Heteropolyacids with Keggin structure supported on silica-alumina; Inderscience Enterprises; International Journal of Materials and Product Technology; 27; 1-2; 16-8-2006; 101-109
dc.identifier.issn
0268-1900
dc.identifier.uri
http://hdl.handle.net/11336/54603
dc.description.abstract
The behaviour of molybdophosphoric acid, with Keggin structure, supported on different silica-alumina mixtures, obtained by sol-gel method, was studied. Different techniques were used to synthesise the supports. In one of them, commercial alumina was added to a tetraethyl orthosilicate (TEOS) solution, and then this was hydrolysed. In the other preparations, TEOS and aluminium tri-sec-butoxide were hydrolysed, simultaneously or with TEOS prehydrolysis. The catalysts were prepared by incipient wetness impregnation, and different thermal treatments were applied after their leaching with toluene. The specific surface area of the solids was measured, and the nature of the Keggin heteropolyacid species present in the catalysts was characterised by diffuse reflectance spectroscopy and X-ray diffraction. In addition, their acidic properties were evaluated by potentiometric titration with n-butylamine
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Inderscience Enterprises
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Keggin Heteropolyacids
dc.subject
Toluene
dc.subject
Molybdophosphoric Acid
dc.subject
Silica-Alumina
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Sol-Gel Synthesis
dc.subject
Leaching
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Thermal Treatments
dc.subject
Acidic Behaviour
dc.subject
Acidic Properties
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Heteropolyacids with Keggin structure supported on silica-alumina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-08T14:54:50Z
dc.identifier.eissn
1741-5209
dc.journal.volume
27
dc.journal.number
1-2
dc.journal.pagination
101-109
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Olney
dc.description.fil
Fil: Vazquez, Patricia Graciela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
dc.description.fil
Fil: Quaranta, Nancy Esther. Universidad Tecnológica Nacional. Facultad Regional San Nicolás. Centro para el Desarrollo Tecnológico de Materiales; Argentina
dc.journal.title
International Journal of Materials and Product Technology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/ 10.1504/IJMPT.2006.010676
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.inderscienceonline.com/doi/pdf/10.1504/IJMPT.2006.010676


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