Abstract:

Polyaniline films have been synthesized on copper surface in inorganic acid aniline solution under different conditions such as scan rates and acid concentration. The properties of the polymer films were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). Electrochemical parameters of the films were characterized by cyclic-voltametry (C-V) lines. The results indicate that polyaniline films synthesized in 0.1 mol/L aniline containing 1.0 mol/L sulfuric acid and 0.5 mol/L hydrochloric acid solution, at the ambient temperature and scan rate 0.06 V/s have uniform grain size under 100 nm and exhibit good reversibility.

Key words: conducting polymer; polyaniline (Pani); cyclic voltametry method; reversiblity; scan rate