Synthesis, conductivity and sensitivity studies of Polyaniline-Iron oxide nanocomposites
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 2
Abstract
Polyaniline and polyaniline/Iron oxide nanocomposites were synthesized by in-situ polymerization technique. The formation of PANI/Iron oxide nanocomposites with regards to the structural properties of the materials were investigated by X-Ray diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. The crystallite size of iron oxide was found to be 36 nm as indicated by XRD along surface normal direction. The frequency dependent conductivity of these nanocomposites has been studied. Large variations in conductivity were observed, this could be due to lattice polarization around the charge localized state and due to variation of distribution of Iron oxide in polymer matrix. Compare to all the composites 50 wt% shows highest sensitivity. The results obtained for these composites are of scientific and technological interest for variety of applications such as in batteries, microelectronics displays, antistatic coatings, electromagnetic shielding materials, sensors and actuators. Its good environmental as well as thermal stability and electrical conductivity tunable by appropriate doping make PANI an ideal active material.
Authors and Affiliations
Pragnya Pradeep, Aravind Rao M Yadwad, Siddharth Joshi, S. Seetharamu
Keywords
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