Abstract
Superparamagnetic monodisperse Mg0.8Mn0.2Fe2O4 nanoparticles have been successfully synthesized in liquid polyol at elevated temperature of 200 °C. Diethylene glycol (DEG) used here plays dual role in synthesis as it acts as reducing agent and alternatively coats the surface of nanoparticles while synthesis and thereby maintaining uniform size and dispersibility. Powder X-ray diffraction (XRD) and magnetic measurements showed that the sample is cubic spinel and superparamagnetic at room temperature. Raman spectra confirmed the formation of the Mg0.8Mn 0.2Fe2O4 nanoparticles. The nanoparticles exhibit very good stability in water due to in situ coating with DEG molecules.
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Acknowledgments
One of the authors (Dr. Sandip Sabale) is thankful to Prof. Dr. Genxi Li, Dean, School of Life Sciences, Shanghai University, China for his valuable discussion. Author VMK acknowledges the Council of Scientific and Industrial Research, India for the award of senior research fellowship (File. 09/1077/(0001)/2012/EMR-1).
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Sabale, S., Khot, V., Jadhav, V. et al. Synthesis and Properties of Monodisperse Superparamagnetic Mg0.8Mn0.2Fe2O4 Nanoparticles Using Polyol Reflux Method. Acta Metall. Sin. (Engl. Lett.) 27, 1122–1126 (2014). https://doi.org/10.1007/s40195-014-0139-y
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DOI: https://doi.org/10.1007/s40195-014-0139-y