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 Maurice Basset, Jean Pierre Candy, Christophe Copéret*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 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 languageEnglish (US)
Pages (from-to)3523-3526
Number of pages4
JournalChemistry - A European Journal
Volume14
Issue number12
DOIs
StatePublished - Apr 18 2008

Keywords

  • Hydrides
  • Hydrogenation
  • Nanoparticles
  • Ruthenium
  • Silanes

ASJC Scopus subject areas

  • Catalysis
  • Organic Chemistry

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