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Ionics

, Volume 22, Issue 9, pp 1729–1739 | Cite as

Supercapacitor studies of electrochemically synthesized multi-layered polyaniline on stainless steel substrate

  • Sowmya
  • Y.N. Sudhakar
  • M. SelvakumarEmail author
Original Paper

Abstract

The multi-layered electrodeposition of polyaniline on stainless steel substrate was carried out using three electrochemical techniques such as potentiodynamic (PD), potentiostatic (PS), galvanostatic (GS) and three different dopants such as sulphuric acid (SA), p-toluene sulphonic acid (PTSA) and camphor-10-sulphonic acid (CSA). The structural properties of multi-layered polymer films were analysed by SEM, AFM and FTIR. The electrochemical properties of multi-layered films were analysed by cyclic voltammetry and AC impedance spectroscopy. The results showed that the highest specific capacitance of 468 F/g was obtained for those multi-layered electrode materials developed using potentiodynamic method. As per the highest specific capacitance value, potentiodynamic method was chosen for multi-layer deposition of polyaniline. Symmetrical supercapacitors were fabricated using multi-layered polyaniline, and the supercapacitive properties were analysed by galvanostatic charge-discharge technique.

Graphical abstract

Keywords

Supercapacitor Polyaniline Potentiodynamic Potentiostatic Galvanostatic 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.Department of Chemistry, Manipal Institute of TechnologyManipal UniversityManipalIndia
  2. 2.Department of PG ChemistrySri Dharmasthala Manjunatheshwara College (Autonomous)UjireIndia

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