Supercapacitor performance study of lithium chloride doped polyaniline.

Dominic, J. and David, T. and Vanaja, A. and Muralidharan, G. and Maheswari, N. and Kumar, K.K.S. (2018) Supercapacitor performance study of lithium chloride doped polyaniline. Applied Surface Science, 460. pp. 40-47. ISSN 01694332

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Abstract

Lithium chloride doped polyaniline (PAni-LiCl) has been synthesized for using as an electroactive material for supercapacitor application. The morphological studies have been carried out by using SEM and HR-TEM techniques, while thermal studies have been made through thermogravimetric analysis (TGA). Characterization of the surface composition of the PAni-LiCl have been performed using X-ray photoelectron spectroscopy (XPS). Electrochemical characterization was done by using cyclic voltammetry, galvanostatic charge-discharge and impedance spectroscopy measurements. The synthesized PAni-LiCl is subjected to electroanalytical technique to study the supercapacitor behavior. PAni-LiCl used as the electroactive material, could provide maximum specific capacitance of 395 F g−1 at a scan rate of 1 mV s−1 in 1 M H2SO4 as electrolyte obtained from cyclic voltammetry technique and the specific capacitance of PAni-LiCl measured by the galvanostatic charge-discharge curve at a current density of 1 A g−1 shows 471 F g−1 using the same electrolyte. PAni-LiCl is observed to yield a higher energy density and power density of 65.42 W h kg−1 and 178.57 W kg−1 respectively. 100% Columbic efficiency has been attained after 1000 cycles. The specific capacitance of 167.28 F g−1 could be obtained through impedance spectroscopy.

Item Type: Article
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User: Mrs SK Pratibha
Date Deposited: 25 Feb 2020 14:26
Last Modified: 25 Feb 2020 14:26
URI: http://nal-ir.nal.res.in/id/eprint/13243

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