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Optimization of synthesis conditions and the study of magnetic and dielectric properties for MgFe2O4 ferrite

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Druc A., Dumitrescu A., Borhan A., Nica V., Iordan A., Palamaru M.

Open Chemistry

2013

vol. 11

issue 8

1330-1342

Nano-sized magnesium ferrites were synthesized by the sol-gel auto-combustion method using a variety of chelating/combustion agents: tartaric acid, citric acid, cellulose, glycine, urea and hexamethylenetetramine. The original purpose of this work was the synthesis of nano-sized magnesium ferrite by using, for the first time, cellulose and hexamethylenetetramine as chelating/combustion agents. Synthesized samples were subjected to different heat treatments at 773 K, 973 K and, respectively 1173 K in air. The disappearance of the organic phase and nitrate phase with the spinel structure formation was monitored by infrared absorption spectroscopy. Spinel structure, crystallite size and cation distribution were evaluated by X-ray diffraction data. The morphology of as-prepared powders was studied using scanning electron microscopy. The magnetic and dielectric properties were studied for the obtained samples. [...]

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1 Open Chemistry

1 2013

1 Borhan A.

1 Druc A.

1 Dumitrescu A.

1 Iordan A.

1 Nica V.

1 Palamaru M.

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Optimization of synthesis conditions and the study of magnetic and dielectric properties for MgFe2O4 ferrite