Synthesis of a Novel Conducting Polymer-Based Zirconia Nanohybrid and exploration of their Microstructural, Optical and Dielectric Properties

Authors

  • Ashis Dey  Department of Chemistry, Sarsuna College, Kolkata, India

Keywords:

Nanocomposites, Conducting Polyaniline, Dielectric Permittivity, Optical Band Gap

Abstract

Conducting polymer provides a captivating type of environment for various inorganic structures resulting in the generation of exciting properties in the nanocomposite owing to the mutual interactions between the two and this provides interesting dimensions for the development of new multifunctional devices. In order to achieve novel properties of ZrO2 nanoparticles, nanocomposites of ZrO2 with Polyaniline (PANI) were prepared through in-situ method of polymerization using ZrO2/pyrrole dispersions. Firstly, nanoparticles of zirconia (ZrO2) have been synthesized by a novel two-reverse emulsion technique and combined with polypyrrole (ANI) to form ZrO2–PANI nanocomposites. The structural and optical properties of ZrO2/PANI nanocomposites were investigated comprehensively by X-Ray diffraction (XRD), UV-visible spectroscopy and Fourier-transform infrared spectroscopy (FTIR). XRD and FTIR reveal the presence of tetragonal phase of ZrO2 nanoparticles in nanocomposites, whereas UV-Visible spectra indicate the presence of different electronic levels. The optical band gap of zirconia decreases with increase in polymer concentration. From scanning and transmission electron microscopic studies, particle size and morphology of the nanocomposites and ZrO2 particles were determined. The electrical inhomogeneity induces two conduction processes, which are attributed to grain and grain boundary effects. A very large dielectric permittivity of about 2500 at room temperature has been observed for the composite with highest content of zirconia. The large dielectric permittivity arises due to interfacial polarization involving heterogeneous behavior of semiconducting zirconia and conducting polyaniline.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2018-08-30

Issue

Volume 4, Issue 9, July-August-2018

Section

Research Articles

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How to Cite

[1]
Ashis Dey, " Synthesis of a Novel Conducting Polymer-Based Zirconia Nanohybrid and exploration of their Microstructural, Optical and Dielectric Properties, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 9, pp.656-663, July-August-2018.