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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/openAccess  
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  
dc.subject
Sol-Gel Synthesis  
dc.subject
Leaching  
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Thermal Treatments  
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Acidic Behaviour  
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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