مشخصات پژوهش

عنوان	Efficient and selective oxidation of olefins and alcohols using nanoparticles of WO3-supported manganese oxides (W1−xMnxO3)
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Nanoparticles, Heterogeneous, Oxidation, Olefins and Alcohols
چکیده	Nanoparticles of manganese oxide supported on tungsten oxide (WO3) were synthesized by an impregnation method using Mn(NO3)2 and Na2WO4 as a source of manganese and tungsten. Atomic absorption spectroscopy (AAS), X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to characterize the physicochemical properties of compounds. Due to a highly dispersed state of manganese or insertion of manganese ions into the WO3 lattice, no manganese oxide peak was observed in the XRD patterns of the W1−xMnxO3 nanoparticles. Investigation of W1−xMnxO3 by AAS and EDX showed that the relative atomic abundance of Mn present in the bulk and on the surface of WO3 was 3.68% and 4.8% respectively. For the first time, the catalytic oxidation of olefins and alcohols, in the presence of these materials and hydrogen peroxide (H2O2) as a green oxidant at room temperature was studied. The recoverability and catalyst leaching of the W1−xMnxO3 nanoparticles in epoxidation of styrene as a model reaction were also investigated.
پژوهشگران	مجتبی امینی (نفر اول)