Conducting polymers directly coated on reduced graphene oxide sheets as high-performance supercapacitor electrodes

Zhang, Jintao and Zhao, X. S. (2012) Conducting polymers directly coated on reduced graphene oxide sheets as high-performance supercapacitor electrodes. Journal of Physical Chemistry C: Nanomaterials, Interfaces and Hard Matter, 116 9: 5420-5426. doi:10.1021/jp211474e


Author Zhang, Jintao
Zhao, X. S.
Title Conducting polymers directly coated on reduced graphene oxide sheets as high-performance supercapacitor electrodes
Journal name Journal of Physical Chemistry C: Nanomaterials, Interfaces and Hard Matter   Check publisher's open access policy
ISSN 1932-7447
1932-7455
Publication date 2012-03-01
Sub-type Article (original research)
DOI 10.1021/jp211474e
Volume 116
Issue 9
Start page 5420
End page 5426
Total pages 7
Place of publication Washington DC, United States
Publisher American Chemical Society
Language eng
Abstract In this work, conducting polymers poly(3,4-ethylenedioxythiophene) (PEDOT), polyaniline (PANi), and polypyrrole (PPy) were directly coated on the surface of reduced graphene oxide (RGO) sheets via an in situ polymerization process to prepare conducting-polymer-RGO nanocomposites with different loadings of the conducting polymers. Experiment results showed that ethanol played an important role in achieving a uniform coating of the polymers on RGO sheets. The electrochemical capacitive properties of the composite materials were investigated by using cycle voltammetry and charge/discharge techniques. The composite consisting of RGO and PANi (RGO-PANi) exhibited a specific capacitance of 361 F/g at a current density of 0.3 A/g. The composites consisting of RGO and PPy (RGO-PPy) and PEDOT (RGO-PEDOT) displayed specific capacitances of 248 and 108 F/g, respectively, at the same current density. More than 80% of initial capacitance retained after 1000 charge/discharge cycles, suggesting a good cycling stability of the composite electrodes. The good capacitive performance of the conducting–polymer-RGO composites is contributed to the synergic effect of the two components.
Keyword Composite Films
Graphite Oxide
Polyaniline
Carbon
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2013 Collection
 
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