New organometallic active sites obtained by controlled surface reaction of organometallic complexes with supported metal particles

B. Didillon; A. El Mansour; J. P. Candy; J. M. Basset; F. Le Peltier; J. P. Bournonville

doi:10.1016/S0167-2991(08)64636-4

New organometallic active sites obtained by controlled surface reaction of organometallic complexes with supported metal particles

B. Didillon, A. El Mansour, J. P. Candy, J. M. Basset, F. Le Peltier, J. P. Bournonville

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The controlled surface reaction of an organometallic compound, such as tetrabutyl tin, with hydrogen covered rhodium particles supported on silica leads to a very well defined superficial organometallic species. These superficial organometallic species are characterized by rhodium-tin bonds and contains butyl radicals still linked to tin atoms. As the temperature of the hydrogen thermal treatment is increased, butyl radicals are progressively eliminated leading at last to the formation of bulky rhodium-tin alloy particles. The presence of these butyl radicals at the surface of the metallic particles induces an increase not only in selectivity but also in activity regarding the hydrogenation of the carbonyl function of an unsaturated aldehyde such as citral.

Original language	English (US)
Pages (from-to)	717-728
Number of pages	12
Journal	Studies in Surface Science and Catalysis
Volume	63
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(08)64636-4
State	Published - Jan 1 1991
Externally published	Yes

ASJC Scopus subject areas

Catalysis
Condensed Matter Physics
Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/S0167-2991(08)64636-4

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title = "New organometallic active sites obtained by controlled surface reaction of organometallic complexes with supported metal particles",

abstract = "The controlled surface reaction of an organometallic compound, such as tetrabutyl tin, with hydrogen covered rhodium particles supported on silica leads to a very well defined superficial organometallic species. These superficial organometallic species are characterized by rhodium-tin bonds and contains butyl radicals still linked to tin atoms. As the temperature of the hydrogen thermal treatment is increased, butyl radicals are progressively eliminated leading at last to the formation of bulky rhodium-tin alloy particles. The presence of these butyl radicals at the surface of the metallic particles induces an increase not only in selectivity but also in activity regarding the hydrogenation of the carbonyl function of an unsaturated aldehyde such as citral.",

author = "B. Didillon and {El Mansour}, A. and Candy, {J. P.} and Basset, {J. M.} and {Le Peltier}, F. and Bournonville, {J. P.}",

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T1 - New organometallic active sites obtained by controlled surface reaction of organometallic complexes with supported metal particles

AU - Didillon, B.

AU - El Mansour, A.

AU - Candy, J. P.

AU - Basset, J. M.

AU - Le Peltier, F.

AU - Bournonville, J. P.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - The controlled surface reaction of an organometallic compound, such as tetrabutyl tin, with hydrogen covered rhodium particles supported on silica leads to a very well defined superficial organometallic species. These superficial organometallic species are characterized by rhodium-tin bonds and contains butyl radicals still linked to tin atoms. As the temperature of the hydrogen thermal treatment is increased, butyl radicals are progressively eliminated leading at last to the formation of bulky rhodium-tin alloy particles. The presence of these butyl radicals at the surface of the metallic particles induces an increase not only in selectivity but also in activity regarding the hydrogenation of the carbonyl function of an unsaturated aldehyde such as citral.

AB - The controlled surface reaction of an organometallic compound, such as tetrabutyl tin, with hydrogen covered rhodium particles supported on silica leads to a very well defined superficial organometallic species. These superficial organometallic species are characterized by rhodium-tin bonds and contains butyl radicals still linked to tin atoms. As the temperature of the hydrogen thermal treatment is increased, butyl radicals are progressively eliminated leading at last to the formation of bulky rhodium-tin alloy particles. The presence of these butyl radicals at the surface of the metallic particles induces an increase not only in selectivity but also in activity regarding the hydrogenation of the carbonyl function of an unsaturated aldehyde such as citral.

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New organometallic active sites obtained by controlled surface reaction of organometallic complexes with supported metal particles

Abstract

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