Synthesis of Graphene-Based Magnetic Nanocatalyst Supported Ag Nanoparticles for Alcohols Oxidation

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سنتز نانوکاتالیزور مغناطیسی بر پایه گرافن پوشش داده شده با نانوذرات نقره برای اکسایش الکل ها

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 49143 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Mahmoodi Hashemi, Mohammad
Abstract:
In this thesis the graphene-based magnetic nanocatalyst was synthesized. The surface of this catalyst was cavered by silica and AgNPs. In addithion of simple sepration by magnetbar, yeild of reaction was promoted by surface modification. Catalyst structure was verified by transmission electron microscopy , scanning electron microscope, fourier transform infrared spectroscopy, X-ray diffraction and Energy dispersive spectroscopy.At the end catalytic activity was examined by oxidation reaction in persense of different alcohols. The oxidation of benzylic alcohol with electron withdrawing substituents was more difficult and the yield was lower, but electron donor substituents effect positively on reaction yield. More amount of catalyst or longer time is needed for oxidation of secondary alcohol. This catalyst is not efficient for aliphatic alcohol oxidation reaction
Keywords:
Magnetic Nanocomposite ; Graphene ; Alcohol Oxidation ; Nano Catalyst ; Silver Nanoparticles

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