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Determination of magnetic properties of nano-size CoFe2O4 particles synthesized by combination of sol-gel auto-combustion and ultrasonic irradiation techniques
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نویسنده
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Abedini Khorrami S. ,Mahmoudzadeh G. ,Madani S. S. ,Sepehr S. S. ,Manie S. ,Moradi Sh. ,Gharib F. ,Mehrdad Sharif A. ,Abromand Azar P.
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منبع
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journal of theoretical and applied physics - 2010 - دوره : 4 - شماره : 2 - صفحه:1 -4
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چکیده
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Nano-crystalline cofe2o4 powder was prepared by combination of sol-gel auto-combustion and ultrasonic irradiation methods from metal nitrades and glycine. the resulting powders were investigated using x-ray diffraction (xrd) analysis, scanning electron microscopy (sem) and vibrating sample magnetometer (vsm). the grains observed in as-burnt powder were proved to be cofe2o4 nano-crystallites with high dispersibility and low agglomeration. the crystallite size of as-formed powders was 39.12 nm. the crystalline cobalt ferrite powders with magnetic properties having a maximum saturation magnetization (44.02 emu/g) was achieved for fe3+/co2+ molar ratio 1: 1 and calcination temperature 750 c for 4 h. our results indicate that this method might provide a promising option for synthesizing high-quality cofe2o4 nano-powder.
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کلیدواژه
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Nano-crystalline; CoFe2O4; Sol-gel auto-combustion; Ultrasonic irradiation; Magnetic properties
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آدرس
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islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران, shahid beheshti university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران, islamic azad university, Chemistry Department, ایران
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پست الکترونیکی
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se_madani@yahoo.com
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Authors
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