Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors
<p>Abstract</p> <p>Polypyrrole films were deposited by anodic electropolymerization on stainless steel substrates from aqueous pyrrole solutions containing sodium salicylate and tiron additives. The deposition yield was studied under galvanostatic conditions. The amount of the depo...
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Online Access: | http://dx.doi.org/10.1007/s11671-009-9519-z |
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doaj-8b2dac8221e04f539cf83c34c479b1eb2020-11-24T21:49:04ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2010-01-0153518523Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical SupercapacitorsShi CZhitomirsky I<p>Abstract</p> <p>Polypyrrole films were deposited by anodic electropolymerization on stainless steel substrates from aqueous pyrrole solutions containing sodium salicylate and tiron additives. The deposition yield was studied under galvanostatic conditions. The amount of the deposited material was varied by the variation of deposition time at a constant current density. SEM studies showed the formation of porous films with thicknesses in the range of 0–3 μm. Cyclic voltammetry data for the films tested in 0.5 M Na<sub>2</sub>SO<sub>4</sub> solutions showed capacitive behavior and high specific capacitance (SC) in a voltage window of 0.9 V. The films prepared from pyrrole solutions containing tiron showed better capacitive behavior compared to the films prepared from the solutions containing sodium salicylate. A highest SC of 254 F g<sup>−1</sup> was observed for the sample with a specific mass of 89 μg cm<sup>−2</sup> at a scan rate of 2 mV s<sup>−1</sup>. The SC decreased with an increasing film thickness and scan rate. The results indicated that the polypyrrole films deposited on the stainless steel substrates by anodic electropolymerization can be used as electrodes for electrochemical supercapacitors (ES).</p> http://dx.doi.org/10.1007/s11671-009-9519-zPolypyrroleFilmSodium salicylateTironSupercapacitorCapacitanceElectropolymerization |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Shi C Zhitomirsky I |
spellingShingle |
Shi C Zhitomirsky I Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors Nanoscale Research Letters Polypyrrole Film Sodium salicylate Tiron Supercapacitor Capacitance Electropolymerization |
author_facet |
Shi C Zhitomirsky I |
author_sort |
Shi C |
title |
Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors |
title_short |
Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors |
title_full |
Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors |
title_fullStr |
Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors |
title_full_unstemmed |
Electrodeposition and Capacitive Behavior of Films for Electrodes of Electrochemical Supercapacitors |
title_sort |
electrodeposition and capacitive behavior of films for electrodes of electrochemical supercapacitors |
publisher |
SpringerOpen |
series |
Nanoscale Research Letters |
issn |
1931-7573 1556-276X |
publishDate |
2010-01-01 |
description |
<p>Abstract</p> <p>Polypyrrole films were deposited by anodic electropolymerization on stainless steel substrates from aqueous pyrrole solutions containing sodium salicylate and tiron additives. The deposition yield was studied under galvanostatic conditions. The amount of the deposited material was varied by the variation of deposition time at a constant current density. SEM studies showed the formation of porous films with thicknesses in the range of 0–3 μm. Cyclic voltammetry data for the films tested in 0.5 M Na<sub>2</sub>SO<sub>4</sub> solutions showed capacitive behavior and high specific capacitance (SC) in a voltage window of 0.9 V. The films prepared from pyrrole solutions containing tiron showed better capacitive behavior compared to the films prepared from the solutions containing sodium salicylate. A highest SC of 254 F g<sup>−1</sup> was observed for the sample with a specific mass of 89 μg cm<sup>−2</sup> at a scan rate of 2 mV s<sup>−1</sup>. The SC decreased with an increasing film thickness and scan rate. The results indicated that the polypyrrole films deposited on the stainless steel substrates by anodic electropolymerization can be used as electrodes for electrochemical supercapacitors (ES).</p> |
topic |
Polypyrrole Film Sodium salicylate Tiron Supercapacitor Capacitance Electropolymerization |
url |
http://dx.doi.org/10.1007/s11671-009-9519-z |
work_keys_str_mv |
AT shic electrodepositionandcapacitivebehavioroffilmsforelectrodesofelectrochemicalsupercapacitors AT zhitomirskyi electrodepositionandcapacitivebehavioroffilmsforelectrodesofelectrochemicalsupercapacitors |
_version_ |
1725889776575315968 |