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dc.contributor.author
Aguirre, María del Carmen
dc.contributor.author
Santori, Gerardo Fabian
dc.contributor.author
Ferretti, Osmar Alberto
dc.contributor.author
Fierro, J. L. G
dc.contributor.author
Reyes, Patricio
dc.date.available
2018-08-17T16:40:41Z
dc.date.issued
2006-03
dc.identifier.citation
Aguirre, María del Carmen; Santori, Gerardo Fabian; Ferretti, Osmar Alberto; Fierro, J. L. G; Reyes, Patricio; Morphological and structural features of Co/TiO2 catalysts prepared by different methods and their performance in the liquid phase hydrogenation of α, β unsaturated aldehydes; Sociedad Chilena de Química; Journal of the Chilean Chemical Society; 51; 1; 3-2006; 791-799
dc.identifier.uri
http://hdl.handle.net/11336/56164
dc.description.abstract
The effect of the preparation method of Co/TiO2 catalysts on the performance in the
liquid phase hydrogenation of cinnamaldehyde and crotonaldehyde has been studied. The Co/TiO2 catalysts were prepared by impregnation on titania (TiO2, P-25), sol-gel, and precipitation procedures. Different reduction-oxidation-reduction cycles were carried out in order to detect possible changes in the nature of the phases and their reduction degrees. The catalysts were characterized by specific area measurements, TEM, ED, XPS and TPR/TPO studies. The catalysts prepared by the sol-gel and precipitation method exhibit higher resistance to sintering when they are treated under the same reduction-oxidation-reduction cycles, than the impregnated catalyst. Morphological changes observed by TEM were used to explain the catalytic behavior showed by the catalysts. The presence of Coº, CoO and Co3O4 phases in the reduced samples were detected by different methods. XPS results show the existence of small particles of CoO, which are interacting with the support, which are very difficult to reduce. TEM and electron diffraction structural studies show an effect of metalsupport interaction by the appearance of channels and pill-box form in the particles. The highest yield in both catalytic hydrogenation reactions were obtained with the Co/TiO2 catalysts prepared by precipitation and sol gel methods. The selectivity was closed to 50 and 30 % for cinnamyl alcohol and crotyl alcohol, respectively.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Sociedad Chilena de Química
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Co/Tio2 Catalysts
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Hydrogenation
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Cinnamaldehyde
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Crotonaldehyde
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Characterisation,
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Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
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INGENIERÍAS Y TECNOLOGÍAS
dc.title
Morphological and structural features of Co/TiO2 catalysts prepared by different methods and their performance in the liquid phase hydrogenation of α, β unsaturated aldehydes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-08-08T14:56:36Z
dc.identifier.eissn
0717-9707
dc.journal.volume
51
dc.journal.number
1
dc.journal.pagination
791-799
dc.journal.pais
Chile
dc.journal.ciudad
Santiago
dc.description.fil
Fil: Aguirre, María del Carmen. Universidad de Concepción; Chile
dc.description.fil
Fil: Santori, Gerardo Fabian. 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: Ferretti, Osmar Alberto. 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: Fierro, J. L. G. Consejo Superior de Investigaciones Científicas. Instituto de Catálisis y Petroleoquímica; España
dc.description.fil
Fil: Reyes, Patricio. Universidad de Concepción; Chile
dc.journal.title
Journal of the Chilean Chemical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072006000100008&lng=en&nrm=iso&tlng=en
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.4067/S0717-97072006000100008
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