Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes
The rate of polymerization decides growth and hence electrochemical properties of the electrodes of conducting polymers synthesized by SILAR method are affected by molar concentration of the precursors. Present work describes the effect of molar concentration of Pyrrole monomer on the rate of polyme...
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doaj-e631f38a394249c6a590a91ebb3b32e92020-11-25T02:49:21ZengElsevierHeliyon2405-84402019-11-01511e02909Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodesA.V. Thakur0B.J. Lokhande1School of Physical Sciences, PAH Solapur University, Solapur, 413 255, M.S., IndiaCorresponding author.; School of Physical Sciences, PAH Solapur University, Solapur, 413 255, M.S., IndiaThe rate of polymerization decides growth and hence electrochemical properties of the electrodes of conducting polymers synthesized by SILAR method are affected by molar concentration of the precursors. Present work describes the effect of molar concentration of Pyrrole monomer on the rate of polymerization and hence the electrochemical performance of highly pristine PPy flexible electrodes. 304 grade flexible stainless steel strips were coated with the PPy using aqueous solutions of 0.025M, 0.05 M and 0.1M pyrrole in 0.5 M H2SO4 separately and 30% H2O2. XRD patterns substantiate the formation of amorphous PPy. The peak at 1560 cm−1 in FTIR confirms the formation of polypyrrole. SEM images of the FEs prepared using different molar concentration shows gradual superficial growth. All FEs were electrochemically analyzed for their supercapacitive performance by the electrochemical techniques like cyclic voltammetry, galvanostatic charge discharge study and electrochemical impedance spectroscopy. It was found that, the specific capacitance increases with molar concentration of pyrrole. The pristine PPy FEs prepared with 0.1 M Pyrrole exhibit specific capacitance as high as 899.14 Fg-1 at 5 mVs-1 in 0.2 M Na2SO4.http://www.sciencedirect.com/science/article/pii/S2405844019365685ElectrochemistryMaterials scienceMaterials chemistryPhysicsPPyElectrochemistry |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A.V. Thakur B.J. Lokhande |
spellingShingle |
A.V. Thakur B.J. Lokhande Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes Heliyon Electrochemistry Materials science Materials chemistry Physics PPy Electrochemistry |
author_facet |
A.V. Thakur B.J. Lokhande |
author_sort |
A.V. Thakur |
title |
Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes |
title_short |
Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes |
title_full |
Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes |
title_fullStr |
Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes |
title_full_unstemmed |
Effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine PPy flexible electrodes |
title_sort |
effect of the molar concentration of pyrrole monomer on the rate of polymerization, growth and hence the electrochemical behavior of highly pristine ppy flexible electrodes |
publisher |
Elsevier |
series |
Heliyon |
issn |
2405-8440 |
publishDate |
2019-11-01 |
description |
The rate of polymerization decides growth and hence electrochemical properties of the electrodes of conducting polymers synthesized by SILAR method are affected by molar concentration of the precursors. Present work describes the effect of molar concentration of Pyrrole monomer on the rate of polymerization and hence the electrochemical performance of highly pristine PPy flexible electrodes. 304 grade flexible stainless steel strips were coated with the PPy using aqueous solutions of 0.025M, 0.05 M and 0.1M pyrrole in 0.5 M H2SO4 separately and 30% H2O2. XRD patterns substantiate the formation of amorphous PPy. The peak at 1560 cm−1 in FTIR confirms the formation of polypyrrole. SEM images of the FEs prepared using different molar concentration shows gradual superficial growth. All FEs were electrochemically analyzed for their supercapacitive performance by the electrochemical techniques like cyclic voltammetry, galvanostatic charge discharge study and electrochemical impedance spectroscopy. It was found that, the specific capacitance increases with molar concentration of pyrrole. The pristine PPy FEs prepared with 0.1 M Pyrrole exhibit specific capacitance as high as 899.14 Fg-1 at 5 mVs-1 in 0.2 M Na2SO4. |
topic |
Electrochemistry Materials science Materials chemistry Physics PPy Electrochemistry |
url |
http://www.sciencedirect.com/science/article/pii/S2405844019365685 |
work_keys_str_mv |
AT avthakur effectofthemolarconcentrationofpyrrolemonomerontherateofpolymerizationgrowthandhencetheelectrochemicalbehaviorofhighlypristineppyflexibleelectrodes AT bjlokhande effectofthemolarconcentrationofpyrrolemonomerontherateofpolymerizationgrowthandhencetheelectrochemicalbehaviorofhighlypristineppyflexibleelectrodes |
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1724743925408727040 |