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Synthesis and Characterization of BaTiO3 Nanopowders and BaTiO3/CoFe2O4 Nanocomposites

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Abstract

Highly stable, organic-based barium titanate (BaTiO3) sols were developed by the low cost and straightforward “organosol”-precipitation and auto-combustion process of amorphous organic precursors. BaTiO3/CoFe2O4 nanocomposites with core/shell structures embedded in a BaTiO3 matrix were also obtained using this process. The particles are systematically characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric and differential thermal analyses (TGA/DTA), infrared spectroscopy (IR) and by laser granulometry for particle size distribution determination.

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Acknowledgments

The authors would like to thank Dr. Vladimir Shvartsman, Morad Etier. and Marianela Escobar for discussions and Patrick Dubray, Stefan Nawrath. Inge Danielzik, and Marlene Munch for recording DSC, StabiSizer and TGA data.

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Authors and Affiliations

  1. Institute for Materials Science, University of Duisburg-Essen, 45141, Essen, Germany

    Yanling Gao & Doru C. Lupascu

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  1. Yanling Gao
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  2. Doru C. Lupascu
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Gao, Y., Lupascu, D.C. Synthesis and Characterization of BaTiO3 Nanopowders and BaTiO3/CoFe2O4 Nanocomposites. MRS Online Proceedings Library 1397, 84–89 (2012). https://doi.org/10.1557/opl.2012.1013

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  • DOI: https://doi.org/10.1557/opl.2012.1013

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