Development and characterization of a nanocomposite based on polyaniline modified by the incorporation of nanoparticles of mixed oxide of cobalt and nickel (ni0.6co2.4o4) with a spinel structure.

The search for good electroactive materials for electrochemical applications is attracting increasing interest in the field of electrons chemistry. It is in this context that we have developed the nanocomposite PANI / Ni0.6 Co2.4O4 in order to reinforce the properties of polyaniline. We synthesized nickel and cobalt mixed oxides nanoparticles with spinel structure Ni0.6Co2.4O4, films of polyaniline and polyaniline / Ni0.6 Co2.4 O4 nanocomposite. The mixed oxide nanoparticles were prepared by the sol-gel method via propionic acid route, the polyaniline and polyaniline / Ni0.6Co2.4O4 nanocomposite films were prepared electrochemically via cyclic voltammetry. Physical and electrochemical characterizations were made by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), cyclic voltammetry and electrochemical impedance spectroscopy. XRD, FTIR and SEM confirmed the structure of the synthesized products and the incorporation of Ni0.6Co2.4O4 in the nanocomposite films. Electrochemical analyzes of the films revealed a higher conductivity of PANI / Ni0.6 Co2.4 O4 nanocomposite films compared to the PANI films.