First, crystalline NiFe2O4 powder was synthesized on a nanoscale dimension by a simple one-step coprecipitationchemical route, and then used to produce activated carbon/NiFe2O4 nanocomposite. Thestructure and morphology of the as-prepared composite was characterized by X-ray diffraction (XRD)pattern, transmission electron microscope (TEM) and Fourier transform infrared (FT-IR)...

To be fairly general and catalyst is easily separated by magnetic devices and can be reused without any apparent loss of activity for the reaction. Fe3O4 nanoparticles were prepared by chemical coprecipitation method and was found to be a mild and effective catalyst for the efficient, one-pot, three-component synthesis of 2,4,5-trisubstituted imidazoles at room temperature under ultrasound irra...