مشخصات پژوهش

عنوان	Immobilization of cerium (IV) and erbium (III) in mesoporous MCM‐41: Two novel and highly active heterogeneous catalysts for the synthesis of 5‐substituted tetrazoles, and chemo‐ and homoselective oxidation of sulfides
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	cerium (IV) and erbium (III), heterogeneous catalyst, MCM‐41, sulfoxides, tetrazoles
چکیده	Two well‐ordered 2D‐hexagonal cerium (IV) and erbium (III) embedded functionalized mesoporous MCM‐41(MCM‐41@Serine/Ce and MCM‐41@Serine/ Er) have been developed via functionalization of mesoporous MCM‐41. The surface modification method has been used in the preparation of serinegrafted MCM‐41 and led to the development of MCM‐41@Serine. The reaction of MCM‐41@Serine with Ce (NH4)2(NO3)6·2H2O or ErCl3·6H2O in ethanol under reflux led to the organization of MCM‐41@Serine/Ce and MCM‐ 41@Serine/Er catalysts. The structures of these catalysts were determined using scanning electron microscopy, mapping, energy‐dispersive X‐ray spectroscopy, Fourier transform‐infrared, thermogravimetric analysis, X‐ray diffraction, inductively coupled plasma, and Brunauer–Emmett–Teller analysis. These MCM‐41@Serine/Ce and MCM‐41@Serine/Er catalysts show outstanding catalytic performance in sulfides oxidation and synthesis of 5‐substituted tetrazoles. These catalysts can be recycled for seven repeated reaction runs without showing a considerable decrease in catalytic performance.
پژوهشگران	محمد قادرمزی (نفر دوم)، سمیه ملایی (نفر اول)