Open AccessMagnetic Properties of Co0.5Zn0.5Fe2O4Nanoparticles Synthesized by a Template-Assisted Hydrothermal Method
Author(s) -
H.-Y. He
Publication year - 2011
Publication title -
journal of nanotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.347
H-Index - 29
eISSN - 1687-9511
pISSN - 1687-9503
DOI - 10.1155/2011/182543
Subject(s) - coercivity , materials science , superparamagnetism , nanoparticle , carboxymethyl cellulose , hydrothermal circulation , cobalt , ferromagnetism , scanning electron microscope , magnetization , morphology (biology) , chemical engineering , nickel , analytical chemistry (journal) , nanotechnology , metallurgy , composite material , sodium , chromatography , engineering , chemistry , physics , quantum mechanics , biology , magnetic field , genetics , condensed matter physics
In the present paper, nickel cobalt ferrite (Co 0.5 Zn 0.5 Fe 2 O 4 ) nanoparticles were synthesized using a template-assisted hydrothermal method. Carboxymethyl cellulose was used as the templating agent for controlling the morphology of the Co 0.5 Zn 0.5 Fe 2 O 4 nanoparticles. The synthesized nanoparticles were characterized using X-ray diffraction, scanning electron microscopy, and a vibrating sample magnetometer. The results indicated that the morphology of the nanoparticles changed from granular and superparamagnetic to platelike and ferromagnetic with the addition of the template. The Co 0.5 Zn 0.5 Fe 2 O 4 nanoparticles synthesized without the template exhibited a saturation magnetization and coercivity 2.81 T and 0.2 kA⋅m −1 , while when the template was used, the saturation magnetization and coercivity increased to 3.13 T and 76.6 kA⋅m −1 as the template proportion increased to 0.3.
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