Journal
CATALYSIS LETTERS
Volume 142, Issue 3, Pages 319-325Publisher
SPRINGER
DOI: 10.1007/s10562-012-0770-z
Keywords
Cobalt ferrite; Alkenes oxidation; Magnetic nanoparticles; Schiff base; Surface functionalization; Molybdenum catalyst
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Funding
- Research Council of Shahid Chamran University, Ahvaz, Iran
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Silica-coated cobalt ferrite nanoparticles were prepared and functionalized with Schiff base groups to yield immobilized bidentate ligands. The functionalized magnetic nanoparticles were then treated with Mo (O-2)(2)(acac)(2), resulting in the novel immobilized molybdenum Schiff base catalyst. The as-prepared catalyst was characterized by X-ray powder diffraction, transmission electron microscopy, vibrating sample magnetometry, thermogravimetric analysis, Fourier transform infrared, and inductively coupled plasma atomic emission spectroscopy. The immobilized molybdenum complex was shown to be an efficient heterogeneous catalyst for the oxidation of various alkenes using t-BuOOH as oxidant. This catalyst, which is easily recovered by simple magnetic decantation, could be reused several times without significant degradation in catalytic activity.
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