Preparation and characterization of graphite composites of polyaniline

Abstract

In this work, synthesis and characterization of composite materials based on graphite (GH) and boric acid doped polyaniline (PANI) was studied. PANI + GH composites were prepared via a simple in situ polymerization of aniline in graphite dispersion. The resulting composites of the PANI + GH were characterized by using spectroscopic, morphologic and physical methods. Ac conductivity and electronic properties of PANI doped 2%, 5% and 10% GHs have been investigated by impedance spectroscopy within the frequency interval of 10 kHz-15 MHz. The frequency dependence of ac conductivity (sigma(AC)) of PANI and PANI + GH composites have been investigated by means of frequency exponent s parameter in the low and high frequency regions. (C) 2015 Elsevier B.V. All rights reserved.