A Rapid Combustion and Calcination Process for the Preparation of Magnetic ZnFe2O4 Nanoparticles
A rapid combustion and calcination process for the preparation of magnetic ZnFe2O4 nanoparticles was introduced. The experimental results showed that the single ferrite phase of ZnFe2O4 could be formed at 400 °C, and the volume of the solvent and the calcination temperature were two key factors to the properties of magnetic ZnFe2O4 nanoparticles: with the volume of absolute alcohol increasing from 10 mL to 30 mL, the average grain size of ZnFe2O4 nanoparticles calcined at 400 °C for 2 h with the heating rate of 3 °C/min increased from 8.6 nm to 17.9 nm, while the saturation magnetization increased from 0.3 Am2/kg to 3.1 Am2/kg, and with the calcination temperature increasing from 400 °C to 800 °C, the average grain size of ZnFe2O4 nanoparticles calcined for 2 h with absolute alcohol of 30 mL and the heating rate of 3 °C/min increased from 17.9 nm to 45.8 nm, the saturation magnetizations increased from 3.1 Am2/kg to 8.9 Am2/kg.
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Document Type: Short Communication
Publication date: March 1, 2016
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