Dielectric and conduction behaviour of H2SO4 doped conducting Polyaniline

National Conference on Processing and Characterization of Materials

Mohanty, J.^1 ; Behera, P.^1 ; Mishra, S.R.^1 ; Badapanda, T.^2 ; Anwar, S.^3

Department of Chemistry, C.V. Raman College of Engineering, Odisha, Bhubaneswar

752054, India^1

Department of Physics, C.V. Raman College of Engineering, Odisha, Bhubaneswar

752054, India^2

Colloids and Materials Chemistry, Institute of Minerals and Materials Technology, Odisha, Bhubaneswar

751013, India^3

关键词: Conducting polyaniline;    Continuous stirrings;    Dielectric studies;    Frequency dependent;    H2SO4;    Impedance studies;    PANI;    Polyanilines (PAni);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/178/1/012014/pdf
DOI  :  10.1088/1757-899X/178/1/012014

来源: IOP

【 摘 要 】

We report the effect of H2SO4doping on the dielectric and conduction behaviour of Polyaniline (PANI) samples. The PANI salt prepared by oxidising aniline hydrochloride in distilled water with the oxidant ammonium persulphate with continuous stirring at room temperature and PANI base is produced by subjecting PANI salt to a reaction with 0.5M NaOH. H2SO4doped PANI is prepared by subjecting PANI base to reaction with 1M H2SO4at room temperature under constant stirring for 1h. The synthesied PANI along with the doped samples were further washed with acetone to study the effect of acetone washing on the electrical behaviour. It is observed that the dielectric constant as well as the dielectric loss decreases with frequency in the entire studied sample. The frequency dependent AC conductivity at room temperature obeys the power law and the DC conductivity was obtained from the fitting parameter. It is found that the non acetone washed PANI doped in 1M H2SO4shows highest dielectric constant and conductivity.