Mononuclear ruthenium hydride species versus ruthenium nanoparticles: The effect of silane functionalities on silica surfaces

Romain Berthoud; Anne Baudouin; Bernard Fenet; Wayne Lukens; Katrin Pelzer; Jean Marie Basset; Jean Pierre Candy; Christophe Copéret

doi:10.1002/chem.200800174

Mononuclear ruthenium hydride species versus ruthenium nanoparticles: The effect of silane functionalities on silica surfaces

Romain Berthoud, Anne Baudouin, Bernard Fenet, Wayne Lukens, Katrin Pelzer, Jean Marie Basset, Jean Pierre Candy, Christophe Copéret^*

^*Corresponding author for this work

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

21 Scopus citations

Abstract

A study was conducted to demonstrate the effect of silane functionalities on silica surfaces to produce mononuclear ruthenium hydride species. The study found that the tuning silica by adding surface Si-H bonds generates a support that avoids aggregation of the metal at high temperatures of grafted [Ru(cod)(cot)]. The study found that silica covered with surface Si-H can react at room temperature with [Ru(cod)(cot)] at 300 °C to produce a highly unsaturated mononuclear ruthenium hydride species [Ru-H]. The study observed that modification of silica support can lead to the formation of a stronger Ru-Si bond instead of Ru-O bond upon grafting with [Ru(cod)(cot)]. The study also observed the stronger Ru-Si interaction can prevent aggregation and the growth of metal particles during treatment under H₂ at high temperature.

Original language	English (US)
Pages (from-to)	3523-3526
Number of pages	4
Journal	Chemistry - A European Journal
Volume	14
Issue number	12
DOIs	https://doi.org/10.1002/chem.200800174
State	Published - Apr 18 2008
Externally published	Yes

Keywords

Hydrides
Hydrogenation
Nanoparticles
Ruthenium
Silanes

ASJC Scopus subject areas

General Chemistry
Catalysis
Organic Chemistry

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10.1002/chem.200800174

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title = "Mononuclear ruthenium hydride species versus ruthenium nanoparticles: The effect of silane functionalities on silica surfaces",

abstract = "A study was conducted to demonstrate the effect of silane functionalities on silica surfaces to produce mononuclear ruthenium hydride species. The study found that the tuning silica by adding surface Si-H bonds generates a support that avoids aggregation of the metal at high temperatures of grafted [Ru(cod)(cot)]. The study found that silica covered with surface Si-H can react at room temperature with [Ru(cod)(cot)] at 300 °C to produce a highly unsaturated mononuclear ruthenium hydride species [Ru-H]. The study observed that modification of silica support can lead to the formation of a stronger Ru-Si bond instead of Ru-O bond upon grafting with [Ru(cod)(cot)]. The study also observed the stronger Ru-Si interaction can prevent aggregation and the growth of metal particles during treatment under H2 at high temperature.",

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AU - Berthoud, Romain

AU - Baudouin, Anne

AU - Fenet, Bernard

AU - Lukens, Wayne

AU - Pelzer, Katrin

AU - Basset, Jean Marie

AU - Candy, Jean Pierre

AU - Copéret, Christophe

PY - 2008/4/18

Y1 - 2008/4/18

N2 - A study was conducted to demonstrate the effect of silane functionalities on silica surfaces to produce mononuclear ruthenium hydride species. The study found that the tuning silica by adding surface Si-H bonds generates a support that avoids aggregation of the metal at high temperatures of grafted [Ru(cod)(cot)]. The study found that silica covered with surface Si-H can react at room temperature with [Ru(cod)(cot)] at 300 °C to produce a highly unsaturated mononuclear ruthenium hydride species [Ru-H]. The study observed that modification of silica support can lead to the formation of a stronger Ru-Si bond instead of Ru-O bond upon grafting with [Ru(cod)(cot)]. The study also observed the stronger Ru-Si interaction can prevent aggregation and the growth of metal particles during treatment under H2 at high temperature.

AB - A study was conducted to demonstrate the effect of silane functionalities on silica surfaces to produce mononuclear ruthenium hydride species. The study found that the tuning silica by adding surface Si-H bonds generates a support that avoids aggregation of the metal at high temperatures of grafted [Ru(cod)(cot)]. The study found that silica covered with surface Si-H can react at room temperature with [Ru(cod)(cot)] at 300 °C to produce a highly unsaturated mononuclear ruthenium hydride species [Ru-H]. The study observed that modification of silica support can lead to the formation of a stronger Ru-Si bond instead of Ru-O bond upon grafting with [Ru(cod)(cot)]. The study also observed the stronger Ru-Si interaction can prevent aggregation and the growth of metal particles during treatment under H2 at high temperature.

KW - Hydrides

KW - Hydrogenation

KW - Nanoparticles

KW - Ruthenium

KW - Silanes

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Mononuclear ruthenium hydride species versus ruthenium nanoparticles: The effect of silane functionalities on silica surfaces

Abstract

Keywords

ASJC Scopus subject areas

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