Preparation and investigation on structural,spectral and electrical properties of polyaniline/manganese dioxide nanocomposites

Polyaniline/manganese dioxide (pani/mno2) nanocomposites have been successfully prepared by in-situ polymerization technique. the prepared nanocomposites were characterized by powder xrd,ft-ir,uv and ac impedance spectroscopy. xrd studies reveal that the crystal structure of embedded mno2 nanoparticles gets distorted and become amorphous. vibrational spectra analysis confirms that adsorbed mno2 nanoparticles on the surface of polyaniline acts as a compensator for positively mno2 nano particles in the formation of pani/mno2 nanocomposites. the absorbance wavelength of pani/mno2 nanocomposites was found from uv spectral analysis. the conductivity nature of the prepared composites was tested using ac impedance spectroscopy. the conductivity of pani/mno2 nanocomposites increased with increase of frequencies dependent. © 2017,university of mohammed premier.