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Fabrication of graphene oxide/polypyrrole nanowire composite for high performance supercapacitor electrodes

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.04.144 Byline: Jing Li, Huaqing Xie, Yang Li Abstract: Graphene oxide/polypyrrole nanowire composite material (GO/PPy) is synthesized using an in situ chemical polymerization method. The field-em... Full description

Journal Title: Journal of Power Sources Nov 1, 2013, Vol.241, p.388(8)
Main Author: Li, Jing
Other Authors: Xie, Huaqing , Li, Yang
Format: Electronic Article Electronic Article
Language: English
Subjects:
Quelle: Cengage Learning, Inc.
ID: ISSN: 0378-7753
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recordid: gale_ofa346071540
title: Fabrication of graphene oxide/polypyrrole nanowire composite for high performance supercapacitor electrodes
format: Article
creator:
  • Li, Jing
  • Xie, Huaqing
  • Li, Yang
subjects:
  • Graphene -- Electric Properties
  • Capacitors -- Electric Properties
  • Nanotechnology -- Electric Properties
  • Polymerization -- Electric Properties
  • Graphite -- Electric Properties
  • Electrochemistry -- Electric Properties
ispartof: Journal of Power Sources, Nov 1, 2013, Vol.241, p.388(8)
description: To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.04.144 Byline: Jing Li, Huaqing Xie, Yang Li Abstract: Graphene oxide/polypyrrole nanowire composite material (GO/PPy) is synthesized using an in situ chemical polymerization method. The field-emission scanning electron microscope (FE-SEM) and transmission electron microscopy (TEM) results demonstrate that the PPy nanowires with 40 nm in diameter are uniformly dispersed on the surface of GO nanosheets, which greatly increases the surface area of the material and the charge transfer reaction. This two-dimensional structure exhibits better electrochemical performance than the pure individual components. According to the galvanostatic charge/discharge analysis, the GO/PPy composite has a good supercapacitive performance with a specific capacitance of 728 F g.sup.-1 at a discharge current density of 0.5 A g.sup.-1, higher than that of PPy nanowires (251 F g.sup.-1). At a discharge current density of 2.5 A g.sup.-1, the GO/PPy composite also has a high specific capacitance of 675 F g.sup.-1. Significantly, the GO/PPy electrode shows excellent cycling stability (7% capacity loss after 1000 cycles) due to the GO layer releasing the intrinsic differential strain of PPy chains during long-term charge/discharge cycles. Author Affiliation: School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, PR China Article History: Received 16 October 2012; Revised 25 April 2013; Accepted 27 April 2013
language: English
source: Cengage Learning, Inc.
identifier: ISSN: 0378-7753
fulltext: no_fulltext
issn:
  • 0378-7753
  • 03787753
url: Link


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titleFabrication of graphene oxide/polypyrrole nanowire composite for high performance supercapacitor electrodes
creatorLi, Jing ; Xie, Huaqing ; Li, Yang
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subjectGraphene -- Electric Properties ; Capacitors -- Electric Properties ; Nanotechnology -- Electric Properties ; Polymerization -- Electric Properties ; Graphite -- Electric Properties ; Electrochemistry -- Electric Properties
descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.04.144 Byline: Jing Li, Huaqing Xie, Yang Li Abstract: Graphene oxide/polypyrrole nanowire composite material (GO/PPy) is synthesized using an in situ chemical polymerization method. The field-emission scanning electron microscope (FE-SEM) and transmission electron microscopy (TEM) results demonstrate that the PPy nanowires with 40 nm in diameter are uniformly dispersed on the surface of GO nanosheets, which greatly increases the surface area of the material and the charge transfer reaction. This two-dimensional structure exhibits better electrochemical performance than the pure individual components. According to the galvanostatic charge/discharge analysis, the GO/PPy composite has a good supercapacitive performance with a specific capacitance of 728 F g.sup.-1 at a discharge current density of 0.5 A g.sup.-1, higher than that of PPy nanowires (251 F g.sup.-1). At a discharge current density of 2.5 A g.sup.-1, the GO/PPy composite also has a high specific capacitance of 675 F g.sup.-1. Significantly, the GO/PPy electrode shows excellent cycling stability (7% capacity loss after 1000 cycles) due to the GO layer releasing the intrinsic differential strain of PPy chains during long-term charge/discharge cycles. Author Affiliation: School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, PR China Article History: Received 16 October 2012; Revised 25 April 2013; Accepted 27 April 2013
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descriptionTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.04.144 Byline: Jing Li, Huaqing Xie, Yang Li Abstract: Graphene oxide/polypyrrole nanowire composite material (GO/PPy) is synthesized using an in situ chemical polymerization method. The field-emission scanning electron microscope (FE-SEM) and transmission electron microscopy (TEM) results demonstrate that the PPy nanowires with 40 nm in diameter are uniformly dispersed on the surface of GO nanosheets, which greatly increases the surface area of the material and the charge transfer reaction. This two-dimensional structure exhibits better electrochemical performance than the pure individual components. According to the galvanostatic charge/discharge analysis, the GO/PPy composite has a good supercapacitive performance with a specific capacitance of 728 F g.sup.-1 at a discharge current density of 0.5 A g.sup.-1, higher than that of PPy nanowires (251 F g.sup.-1). At a discharge current density of 2.5 A g.sup.-1, the GO/PPy composite also has a high specific capacitance of 675 F g.sup.-1. Significantly, the GO/PPy electrode shows excellent cycling stability (7% capacity loss after 1000 cycles) due to the GO layer releasing the intrinsic differential strain of PPy chains during long-term charge/discharge cycles. Author Affiliation: School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, PR China Article History: Received 16 October 2012; Revised 25 April 2013; Accepted 27 April 2013
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abstractTo link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.jpowsour.2013.04.144 Byline: Jing Li, Huaqing Xie, Yang Li Abstract: Graphene oxide/polypyrrole nanowire composite material (GO/PPy) is synthesized using an in situ chemical polymerization method. The field-emission scanning electron microscope (FE-SEM) and transmission electron microscopy (TEM) results demonstrate that the PPy nanowires with 40 nm in diameter are uniformly dispersed on the surface of GO nanosheets, which greatly increases the surface area of the material and the charge transfer reaction. This two-dimensional structure exhibits better electrochemical performance than the pure individual components. According to the galvanostatic charge/discharge analysis, the GO/PPy composite has a good supercapacitive performance with a specific capacitance of 728 F g.sup.-1 at a discharge current density of 0.5 A g.sup.-1, higher than that of PPy nanowires (251 F g.sup.-1). At a discharge current density of 2.5 A g.sup.-1, the GO/PPy composite also has a high specific capacitance of 675 F g.sup.-1. Significantly, the GO/PPy electrode shows excellent cycling stability (7% capacity loss after 1000 cycles) due to the GO layer releasing the intrinsic differential strain of PPy chains during long-term charge/discharge cycles. Author Affiliation: School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209, PR China Article History: Received 16 October 2012; Revised 25 April 2013; Accepted 27 April 2013
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