Preparation and Performance of Co3O4/Polyaniline Nano-Composite for Supercapacitor

Cobalt oxide-Polyaniline (Co 3 O 4 /PANI) nanocomposites were prepared via inverted emulsion polymerization. The structure of the obtained composites were characterized by X-ray diffraction (XRD). The electrochemical behavior was studied by cyclic voltammetry(CV) and electrochemical impedance spectrometry(EIS) experiments. The Co 3 O 4 /PANI(1:2) composite calcined at 400°C exhibits the highest capacitance value of 357 F/g at the scan rate of 5mV/s.