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A robust synthesis and characterization of superparamagnetic CoFe 2 O 4 nanoparticles as an efficient and reusable catalyst for green synthesis of some heterocyclic rings
Author(s) -
Aleem Ali ElRemaily Mahmoud Abd El,
AbuDief Ahmed M.,
ElKhatib Rafat M.
Publication year - 2016
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3536
Subject(s) - superparamagnetism , thermogravimetric analysis , catalysis , nanoparticle , chemistry , transmission electron microscopy , hydrothermal synthesis , magnetic nanoparticles , hydrothermal circulation , nanomaterials , chemical engineering , characterization (materials science) , nanometre , powder diffraction , elemental analysis , magnetometer , scanning electron microscope , nanotechnology , nuclear chemistry , magnetization , materials science , inorganic chemistry , organic chemistry , crystallography , magnetic field , physics , engineering , quantum mechanics , composite material
A robust synthesis for magnetic CoFe 2 O 4 nanoparticles via a hydrothermal technique was investigated. The prepared magnetic nanoparticles were characterized using powder X‐ray diffraction, scanning, transmission and high‐resolution transmission electron microscopies, energy‐dispersive X‐ray and infrared spectroscopies, thermogravimetric analysis and vibrating sample magnetometry. Based on the obtained data, the prepared powder was composed of ultrafine particles in nanometer size range with highly homogeneous spherical shape and elemental composition. Moreover, the prepared magnetic CoFe 2 O 4 nanoparticles were used as an efficient catalyst for green synthesis of tetrahydropyridines and pyrrole derivatives in excellent yields, with easy work‐up and purification of products by non‐chromatographic methods. The catalyst can be recovered for subsequent reactions and reused without any appreciable loss of activity. Copyright © 2016 John Wiley & Sons, Ltd.