| تعداد نشریات | 126 |
| تعداد شمارهها | 7,094 |
| تعداد مقالات | 76,234 |
| تعداد مشاهده مقاله | 151,637,735 |
| تعداد دریافت فایل اصل مقاله | 113,758,923 |
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: 1,907 تعداد دریافت فایل اصل مقاله: 1,877 |
||