%0 Journal Article %T Synthesis of Binary Ti-Si Mixed Oxides Nanoparticles with Rutile Structure as Selective Catalyst for Epoxidation of Alkenes %J Journal of Sciences, Islamic Republic of Iran %I University of Tehran %Z 1016-1104 %A Farzaneh, F. %D 2007 %\ 12/01/2007 %V 18 %N 4 %P 303-395 %! Synthesis of Binary Ti-Si Mixed Oxides Nanoparticles with Rutile Structure as Selective Catalyst for Epoxidation of Alkenes %K Epoxidation %K Alkenes %K Ti-Si mixed oxides %K nanoparticles %K Heterogeneous catalysis %R %X The nanoparticles of Ti-Si mixed oxides (NTSO) with Rutile structure were prepared by sol-gel method in a mixture of alcohol and water as solvent. The solid product was characterized by XRD, FTIR, SEM, TEM, UV, TGA and laser Raman spectroscopy. The catalytic activity of NTSO (5-10 nm) was investigated in the epoxidation of cis stilbene, trans stilbene, and norbornene by using oxidants such as tert-butylhydroperoxide (TBHP), molecular oxygen (O2)/isobutyraldehyde (IBA) and hydrogen peroxide (H2O2). It was found that epoxides of trans-stilbene andnorbornenewereformedquantitativelywiththegreenH2O2oxidantduring12h. %U https://jsciences.ut.ac.ir/article_35065_7dd368e2a660d1b78517bb5587f186ec.pdf