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Conception d'un catalyseur par greffage d'un complexe de ruthénium en milieu confiné ; Application à l'oxydation sélective.

Abstract : A supported ruthenium complex was synthesised in LUS, a MCM-41 type porous mesostructured silica, via a step-by-step approach. Surface engineering was performed through a controlled process of protection / deprotection of surface silanols. A pyridine terminated tether, Py@LUS, was homogeneously distributed on the surface using a molecular stencil patterning technique, followed by reaction of [Ru(dmp)2Cl2] (dmp = 2,9-dimethyl-1,10-phenantroline). All intermediate materials were thoroughly characterised with a panel of techniques, including XRD, elemental analysis, TGA, 29Si and 13C MAS-NMR, DRUV, FT-IR, Raman and cyclovoltamperometry. Integrity of the porous structure, formation of the complex and localisation in the confined space of the pores of the silica matrix were confirmed. The final material was selectively active in the catalytic oxidation of methylphenylsulfide into sulfoxide.
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https://tel.archives-ouvertes.fr/tel-00292814
Contributor : Stéphanie Calmettes <>
Submitted on : Wednesday, July 2, 2008 - 4:12:25 PM
Last modification on : Wednesday, November 4, 2020 - 2:12:19 PM
Long-term archiving on: : Friday, May 28, 2010 - 11:06:22 PM

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  • HAL Id : tel-00292814, version 1

Citation

Stéphanie Calmettes. Conception d'un catalyseur par greffage d'un complexe de ruthénium en milieu confiné ; Application à l'oxydation sélective.. Matériaux. Ecole normale supérieure de lyon - ENS LYON; Université Claude Bernard - Lyon I, 2008. Français. ⟨tel-00292814⟩

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