Ru nanoparticles stabilized by organosilane fragments: Influence of the initial Si/Ru ratio and thermal stability

K. Pelzer*, J. P. Candy, G. Bergeret, Jean-Marie Maurice Basset

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The decomposition of the organometallic ruthenium precursor [Ru(COD)(COT)] (COD: 1,5-cyclooctadiene; COT: 1,3,5-cyclooctatriene) in mild conditions (20 °C, 3 bar H2) in n-pentane leads, in the presence of octylsilane (H3SiC8H17) to the formation of stable Ru nanoparticles with narrow size distribution. The solids obtained after washing and drying were fully characterized by elemental analysis, TEM with EDX, infra red measurements as well as solid state 13C CP-MAS NMR investigations. The influence of the initial octylsilane/Ru(COD)(COT) ratio ranging from 0.2 to 2.0 was studied. It was observed that the size of the nanoparticles decreases with the initial Si/Ru ratio. The thermal stability of these nanoparticles (Si/Ru = 1) was also studied and as expected the size of the particles drastically increases after treatment under H2 at 500 °C, while surprisingly under neutral atmosphere, there is only a slight increase.

Original languageEnglish (US)
Pages (from-to)197-200
Number of pages4
JournalEuropean Physical Journal D
Volume43
Issue number1-3
DOIs
StatePublished - Jul 1 2007

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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