Mostrar el registro sencillo del ítem
dc.contributor.author
Villabrille, Paula Isabel
dc.contributor.author
Romanelli, Gustavo Pablo
dc.contributor.author
Vazquez, Patricia Graciela
dc.contributor.author
Caceres, Carmen Victoria
dc.date.available
2018-08-03T14:22:47Z
dc.date.issued
2008-01
dc.identifier.citation
Villabrille, Paula Isabel; Romanelli, Gustavo Pablo; Vazquez, Patricia Graciela; Caceres, Carmen Victoria; Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone; Elsevier Science; Applied Catalysis A: General; 334; 1-2; 1-2008; 374-380
dc.identifier.issn
0926-860X
dc.identifier.uri
http://hdl.handle.net/11336/54039
dc.description.abstract
Supported catalysts were prepared by in situ deposition of the cesium salt of H4PMo11VO40. Commercial silica was impregnated to incipient wetness with an aqueous solution of CsNO3. The dried and calcined solid was then impregnated an aqueous solution of H4PMo11VO40. Solids with 40% and 7% (w/w) of Cs3HPMo11VO40 were obtained. To compare on behavior catalytic, a catalyst was prepared by silica impregnation with an aqueous solution of H4PMo11VO40 (40%, w/w), using the incipient wetness technique. Impregnated silica particles showed a homogeneous distribution by scanning electron microscope (SEM). The Keggin structure was preserved for the salt in those catalysts according to the FT-IR and DRS characterization. The acidity of the solids with 40% and 7% (w/w) of Cs3HPMo11VO4 was greater than that of the silica but lower than that of bulk salt. The catalysts were used in the oxidation of 2,6-dimethylphenol with aqueous hydrogen peroxide, in acetonitrile at 20 °C. The reaction was followed by UV-vis spectroscopy. The phenol conversion was 35% at 4 h for H4PMo11VO40/SiO2, 20% at 2 h and 29% at 135 h for 7% Cs3HPMo11VO4/SiO2, and 83% at 98 h for 40% Cs3HPMo11VO4/SiO2. The behavior of the latter was also studied by HPLC technique. Similar results were achieved with both techniques. The Cs3HPMo11VO4/SiO2 catalysts were almost totally insoluble in the reaction mixture. © 2007 Elsevier B.V. All rights reserved.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
2,6-Dimethyl-1,4-Benzoquinone
dc.subject
2,6-Dimethylphenol Oxidation
dc.subject
Ecofriendly Catalysts
dc.subject
Supported Heteropolycompounds
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Supported heteropolycompounds as ecofriendly catalysts for 2,6-dimethylphenol oxidation to 2,6-dimethyl-1,4-benzoquinone
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-07-11T15:10:17Z
dc.journal.volume
334
dc.journal.number
1-2
dc.journal.pagination
374-380
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Villabrille, Paula Isabel. 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: Romanelli, Gustavo Pablo. 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: 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: Caceres, Carmen Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigación y Desarrollo en Ciencias Aplicadas ; Argentina
dc.journal.title
Applied Catalysis A: General
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1016/j.apcata.2007.10.025
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0926860X07006606
Archivos asociados