مشخصات پژوهش

صفحه نخست /Magnetic core-shell ...
عنوان Magnetic core-shell nanoparticle-supported Sc (III): A novel and robust Lewis acid nanocatalyst for the selective oxidation of sulfides to sulfoxides by H2O2 under solvent-free conditions
نوع پژوهش مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها Magnetic nanoparticles, Scandium triflate, Hydrogen peroxide, Sulfides, Sulfoxides
چکیده For the first time scandium triflate was supported on modified Fe3O4 magnetic nanoparticles [MNPs-PhSO3-Sc(OTf)2] and characterized using scanning electron microscopy (SEM), inductively coupled plasma analysis (ICP), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), energy dispersive X-ray spectroscopy (EDX) and vibrating sample magnetometer (VSM) techniques. The MNPs-PhSO3-Sc(OTf)2 was applied as a magnetically recyclable heterogeneous Lewis acid nanocatalyst for the selective oxidation of a variety of sulfides to sulfoxides using hydrogen peroxide as a green oxidant resulting in 90–98% yields under solvent-free conditions at room temperature. It could also be recovered and reused for at least 15 reaction cycles without considerable loss of activity.
پژوهشگران شمیلا روحانی (نفر سوم)، امین رستمی (نفر دوم)، دنیا خالدیان (نفر اول)