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Vol. 33 No. 9 (2021): Vol 33 Issue 9, 2021

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Tin Doped Barium Titanate (BaTiO3) Synthesized through Molten Salt Method as Promising Dielectric Material

https://doi.org/10.14233/ajchem.2021.23282%20
Richa Tomar
Department of Chemistry and Biochemistry, Sharda University, Greater Noida-201306, India ; Material Research Laboratory, School of Basic Sciences &Research, Sharda University, Greater Noida- 201306, India
Karan Surana
Material Research Laboratory, School of Basic Sciences &Research, Sharda University, Greater Noida- 201306, India
Pankaj Gupta
Department of Chemistry and Biochemistry, Sharda University, Greater Noida-201306, India
N.B. Singh
Department of Chemistry and Biochemistry, Sharda University, Greater Noida-201306, India; Research and Development Cell, Sharda University, Greater Noida-201306, India

Corresponding Author(s) : Richa Tomar

richa.tomar@sharda.ac.in

Asian Journal of Chemistry, Vol. 33 No. 9 (2021): Vol 33 Issue 9, 2021

Abstract

Tin doped barium titanate (BaTiO3) was prepared through NaCl-KCl eutectic melt at 800 ºC. The synthesized materials were well characterized using powder-X-ray diffraction (PXRD) and FESEM-EDX spectroscopy. Cubic structure was observed in the PXRD pattern of tin doped sample. The crystallite size of tin doped barium titanate nanoparticles was found to be around 17 nm. Nanorods and aggregated nanocubes like structure were observed in the FESEM images and elemental ratio of doped ions was confirmed by energy dispersive X-ray spectrum (EDX). Electrical properties observed for the synthesized material were found better than those reported in the literature prepared by other methods. The dielectric constant and dielectric loss were measured in the temperature range of 100-400 K and the frequencies varying from 10 kHz to 10,000 kHz. The tin doped barium titanate showed rod type morphology with an unprecedented high dielectric constant of ~17,500 at 10 Hz. Dielectric constant values decreased with increasing frequency. The change in dielectric constant with frequency was well explained by Maxwell-Wanger polarization effect. The impedance and ionic transference number (tion) were also measured.

Keywords

Eutectic melt Molten salt Barium titanate Dielectric constant Impedance analysis
Tomar, R., Surana, K., Gupta, P., & Singh, N. (2021). Tin Doped Barium Titanate (BaTiO3) Synthesized through Molten Salt Method as Promising Dielectric Material. Asian Journal of Chemistry, 33(9), 2212–2218. https://doi.org/10.14233/ajchem.2021.23282
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