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Sol–gel preparation and structural characterization of Ba2TiSi2O8 powder

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Abstract

Fresnoite (Ba2TiSi2O8, BTS) nano-particles were successfully synthesized at a low temperature of 900 °C by a modified Pechini sol–gel process with starting materials of Ba(NO3)2, Si(OC2H5)4 and Ti(OC3H7)4. The structural characterization of the precursors and derived synthesized oxide powders is done by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), thermal analysis (TG-DTG) and electron microscopy (SEM, EDX and TEM) studies. The effect of heat-treating temperature on the crystallinity of the fresnoite was investigated. Combined the XRD data and the strong FTIR peaks assigned to Ti–O and Si–O vibration, indicate the formation of fresnoite phase at a temperature of 900 °C. Also the nano-crystals size distribution was studied and the main diameter of nanoparticles was about 47 nm.

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Acknowledgments

The experimental part of this study was possible with the support of Prof. Dr. Joop Schoonman, TU Delft and Socrates-Erasmus Programme.

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Authors and Affiliations

  1. Chemistry Department, Ovidius University, 124 Mamaia, 900527, Constantza, Romania

    Ionela Carazeanu Popovici

  2. Physics Department, Ovidius University, 124 Mamaia, 900527, Constantza, Romania

    Gabriel Prodan

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  1. Ionela Carazeanu Popovici
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  2. Gabriel Prodan
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Correspondence to Ionela Carazeanu Popovici.

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Carazeanu Popovici, I., Prodan, G. Sol–gel preparation and structural characterization of Ba2TiSi2O8 powder. J Sol-Gel Sci Technol 63, 457–462 (2012). https://doi.org/10.1007/s10971-012-2807-6

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  • DOI: https://doi.org/10.1007/s10971-012-2807-6

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