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| DC Field | Value | Language |
|---|---|---|
| dc.creator | Reyes, P. | - |
| dc.creator | Aguirre, Mª del Carmen | - |
| dc.creator | Pecchi, Gina | - |
| dc.creator | García Fierro, José Luis | - |
| dc.date | 2007-11-16T12:53:35Z | - |
| dc.date | 2007-11-16T12:53:35Z | - |
| dc.date | 2000-03 | - |
| dc.date.accessioned | 2017-01-31T00:58:44Z | - |
| dc.date.available | 2017-01-31T00:58:44Z | - |
| dc.identifier | Boletín de la Sociedad Chilena de Química, 2000, vol.45, no.1, pp.155-164. | - |
| dc.identifier | 0366-1644 (versión impresa) | - |
| dc.identifier | http://hdl.handle.net/10261/2199 | - |
| dc.identifier.uri | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2199 | - |
| dc.description | The vapor-phase hydrogenation of crotonaldehyde on Rh supported catalysts has been studied. The effect of some variables of preparation in catalysts prepared by the sol-gel and impregnation methods on the surface and catalytic properties were analyzed. It was found, that the porosity of the support has a small effect on the selectivity to the unsaturated alcohol and the presence of partially reducible supports such as ZrO2 and TiO2, may increase the selectivity to crotyl alcohol via an enhancement of the polarization of the C=O bond as a result of surface decoration of the metal component. The presence of chlorine ions in the metal-support interfacial region, also allows, in a certain extension, a polarization of the carbonyl bond. | - |
| dc.description | Se estudió la hidrogenación en fase vapor de crotonaldehído sobre catalizadores de Rh soportados. Se analizó la influencia de diferentes variables de preparación de catalizadores obtenidos por el método sol-gel y por impregnación. Se encontró que la porosidad del soporte tiene sólo un pequeño efecto sobre la selectividad hacia el alcohol insaturado y que la presencia de soportes parcialmente reducibles como ZrO2 y TiO2 pueden incrementar la selectividad hacia el alcohol crotílico a través de un aumento de la polarización del enlace C=O como consecuencia de una decoración superficial del componente metálico. Adicionalmente, la presencia de iones cloruro en la interfase metal-soporte, también contribuyen en alguna medida a la polarización del enlace carbonílico. | - |
| dc.description | The authors thank CONICYT (Chile, FONDECYT Grants 1980345 and 2990065 and CSIC-CONICYT Collaboration Program) for their financial support. | - |
| dc.description | Peer reviewed | - |
| dc.language | eng | - |
| dc.publisher | Sociedad Chilena de Química | - |
| dc.rights | openAccess | - |
| dc.subject | Rh | - |
| dc.subject | SiO2 | - |
| dc.subject | ZrO2-SiO2 | - |
| dc.subject | TiO2 | - |
| dc.subject | Crotonaldehyde | - |
| dc.subject | Hydrogenation | - |
| dc.subject | Chemisorption | - |
| dc.subject | TPR | - |
| dc.subject | Surface composition | - |
| dc.title | Crotonaldehyde hydrogenation on Rh supported catalysts | - |
| dc.type | Artículo | - |
| Appears in Collections: | Digital Csic | |
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