عنوان	Keggin Trimetallo‑POM@MIL‑101(Cr), Synthesis, Characterization and Catalytic Applications
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Polyoxometalates · MIL-101 matrix · Synthesis of tetrazole · Oxidation of sulfde
چکیده	The Keggin trimetallic polyoxometalates of [A-β-SiW9Fe3O37]7− and [A-β-SiW9Co3O37]10− were immobilized into the porous metal–organic framework MIL-101(Cr). The structures and properties were characterized with high-resolution transmission electron microscopies (HRTEM), feld emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectrometer (EDS), Fourier transform infrared spectroscopy (FTIR), powder X-ray difraction (XRD), nitrogen adsorption–desorption isotherm and zeta potential analysis. In this approach, the SiW9Fe3O37@MIL-101 and SiW9Co3O37@MIL-101 composites were synthesized with spherical particles consisting of high surface area (the BET surface area 1368.1 and 1275.8 m2/g respectively) and uniform pore size (2.10 and 2.13 nm respectively). The SiW9Fe3O37@MIL-101 and SiW9Co3O37@MIL- 101 catalysts demonstrated exceptional performance in synthesizing 5-substituted 1H tetrazoles and oxidation sulfde to sulfones. Incorporating SiW9Fe3O37 and SiW9Co3O37 polyoxometalates into the MIL-101 matrix provided a high surface area and this unique structure allowed enhanced accessibility of reactants to the catalytic sites.
پژوهشگران	نگین تیموری (نفر اول)، روشن خوشنوازی (نفر دوم)، سمیه ملایی (گروه شیمی) (نفر سوم)، ناهید قادرمزی (نفر چهارم)