High Electrical Conductivity, Thermal Stability and Gas Sensing Studies on Silver-Polyaniline Nanocomposite

Sanjib Baglari¹ , D. Sarkar²

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.2 , pp.55-61, Apr-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i2.5561

Online published on Apr 30, 2019

Copyright © Sanjib Baglari , D. Sarkar . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
This paper reports the synthesis of Polyaniline-Silver (Pani/Ag) nanocomposites by an in-situ chemical polymerization method using ammonium persulphate (APS) as an oxidizing agent. The prepared Pani/Ag nanocomposite were characterized by XRD, EDAX, FESEM, TEM, TGA, UV-vis spectroscopy. The XRD patterns indicated that the crystalline phase of Ag is cubic with average crystallite size of 26 nm. UV–vis spectroscopy analysis indicated that the Ag nanoparticles have some effect on the Pani matrix. The TGA result showed that thermal stability of the nanocomposite was increased after incorporation of Ag nanoparticles. Pani/Ag nanocomposite showed superior DC conductivity when compared to pure Pani. The Pani/Ag nanocomposite also showed excellent chloroform sensing behaviour than pure Pani, which might be due to increase in the surface area of Pani in the presence of Ag nanoparticles.

Key-Words / Index Term :
Polyaniline, Nanocomposite, DC Conductivity, Gas Sensing, Thermal Stability, UV Vis

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