Synthesis, Characterization and Electrical Properties of Nano Metal and Metal-Oxide Doped with Conducting Polymer Composites by in-Situ Chemical Polymerization

The conducting polyaniline (pani) doped with nano aluminium (n-Alpani) and nano aluminium oxide (n-Al2O3pani) composites are prepared by using in situ chemical oxidative polymerization method. The synthesized samples were characterized Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD). The morphological and elemental compositions were analyzed using FESEM with EDX. The electrical conductivity of the pure Pani and its nanocomposites were studied by two probe technique. The very strong bands at 593 cm-1 and 615 cm-1corresponds to Al-O stretching vibrations. FT-IR study confirms the presence of aluminium nanoparticles in the Pani matrix. The A.C electrical conductivity of Pani, n-Al2O3pani and n-Al pani were calculated and found to be 8.2 x10-9 S/cm, 1.77x 10-8S/cm and 2.15 x 10-6S/cm respectively. The results revealed that there is an increase of one order of conductivity in the metal oxide composite and three order increase of conductivity in the nano metal composite when compared to pure polyaniline.