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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Main Authors: A.V. Thakur, B.J. Lokhande
Format: Article
Language:English
Published: Elsevier 2019-11-01
Series:Heliyon
Subjects:
PPy
Online Access:http://www.sciencedirect.com/science/article/pii/S2405844019365685
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spelling 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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