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Aqueous Route Synthesis of PAni Electrodes by Chemical Bath Deposition and Their Cyclic Voltammetric Analyses at Different Scan Rates
Author(s) -
Thokale Shilpa P.,
Kore Rohan M.,
Kambale Sandesh V.,
Thakur Amarsingh V.,
Lokhande Balkrishna J.
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201800215
Subject(s) - horizontal scan rate , polyaniline , cyclic voltammetry , electrode , aqueous solution , materials science , aniline , electrolyte , chemical bath deposition , supercapacitor , amorphous solid , capacitance , chemical engineering , electrochemistry , analytical chemistry (journal) , nuclear chemistry , thin film , nanotechnology , chemistry , composite material , polymer , organic chemistry , engineering , polymerization
The present work elaborates the aqueous route synthesis of polyaniline (PAni) electrodes for supercapacitors using chemical bath deposition (CBD) method and study of effective of scan rate on the cyclic voltammetric (CV) behavior. In the synthesis work, 1 m aniline and 1 m H 2 SO 4 were taken in 2:2 ratio and kept for constant stirring and 1 m aqueous solution of (NH 4 ) 2 S 2 O 8 was added slowly in it. Stainless steel substrates were immersed in the reaction bath at room temperature for 1 h. The formation of PAni was confirmed by FT‐IR spectroscopic study. XRD analysis confirms the amorphous nature of the prepared PAni thin films. Contact angle study shows the hydrophilic behavior of the PAni electrodes. Obtained electrodes were subjected to cyclic voltammetric study at various scan rate from 5 to 100 mV s –1 in 1 m KOH electrolyte. Observed maximum specific capacitance was 516.34 F g –1 at 5 mV s –1 scan rate.