TY - JOUR
T1 - Ru nanoparticles stabilized by organosilane fragments
T2 - Influence of the initial Si/Ru ratio and thermal stability
AU - Pelzer, K.
AU - Candy, Jean-Pierre
AU - Bergeret, G.
AU - Basset, J. M.
PY - 2007/7
Y1 - 2007/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=34249723079&partnerID=8YFLogxK
U2 - 10.1140/epjd/e2007-00111-0
DO - 10.1140/epjd/e2007-00111-0
M3 - Article
AN - SCOPUS:34249723079
VL - 43
SP - 197
EP - 200
JO - European Physical Journal D
JF - European Physical Journal D
SN - 1434-6060
IS - 1-3
ER -