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Synthesis of Binary Ti-Si Mixed Oxides Nanoparticles with Rutile Structure as Selective Catalyst for Epoxidation of Alkenes | ||
Journal of Sciences, Islamic Republic of Iran | ||
مقاله 1، دوره 18، شماره 4، اسفند 2007، صفحه 303-395 اصل مقاله (173.44 K) | ||
نوع مقاله: Original Paper | ||
نویسنده | ||
F. Farzaneh* | ||
Department of Chemistry, Alzahra University, Vanak, Tehran, Islamic Republic of Iran | ||
چکیده | ||
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. | ||
کلیدواژهها | ||
Epoxidation؛ Alkenes؛ Ti-Si mixed oxides؛ nanoparticles؛ Heterogeneous catalysis | ||
آمار تعداد مشاهده مقاله: 1,734 تعداد دریافت فایل اصل مقاله: 1,682 |