Hydrolysis of silicon-hydride bonds catalyzed by ferromagnetic cobalt nanoparticles

• Published in: Catalysis letters Vol. 114; no. 3-4; pp. 145 - 150
• Main Authors: RODGERS, Jody L, RATHKE, Jerome W, KLINGLER, Robert J, MARSHALL, Christopher L
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer 01.04.2007; Springer Nature B.V
• Subjects: Catalysis; CATALYTIC EFFECTS; Chemistry; COBALT; Colloidal state and disperse state; Exact sciences and technology; FERROMAGNETIC MATERIALS; Ferromagnetism; General and physical chemistry; High temperature; Hydrides; HYDROLYSIS; INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; Nanoparticles; NANOSTRUCTURES; Physical and chemical studies. Granulometry. Electrokinetic phenomena; SILANES; Silicon; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Hydrolysis; Catalytic reaction; ferromagnetic; Nanoparticle; cobalt nanoparticles; hydrosilanes; Transition metal; Hydrides; Silicon; Catalysis; Cobalt; polysiloxane
• ISSN: 1011-372X; 1572-879X
• DOI: 10.1007/s10562-007-9055-3

Ferromagnetic cobalt nanoparticles with average diameter of 9.5 nm, used for the purpose of magnetic catalyst recovery, were shown to catalyze the hydrolysis of silicon–hydride bonds for a range of hydrosilanes. The highest turnover frequencies (220–311 moles silane/moles Co/h) were observed for the dialkylsilanes (R2SiH2), which were hydrolyzed to give the corresponding dialkylsilanediols. The monoalkylsilanes (RSiH3) reacted more slowly (2–20 moles silane/moles Co/h) and gave an oligomeric product. Trialkylsilanes (R3SiH) required elevated temperatures in order to observe trace activity.