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Polyaniline nanofibers prepared by a facile electrochemical approach and their supercapacitor performance

Published online by Cambridge University Press:  31 January 2011

Haibin Zhang ,
Hanlu Li ,
Fengbao Zhang ,
Jixiao Wang ,
Zhi Wang  and
Shichang Wang
Haibin Zhang
Affiliation:
Department of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
Hanlu Li
Affiliation:
Department of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
Fengbao Zhang
Affiliation:
Department of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
Jixiao Wang*
Affiliation:
State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
Zhi Wang
Affiliation:
State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
Shichang Wang
Affiliation:
State Key Laboratory of Chemical Engineering, Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Polyaniline (PANI) nanofibers were prepared electrochemically by a template-free method on different active substrates in aqueous solutions containing aniline and inorganic acid or organic acid. The influences of experimental parameters, such as polymerization potential, techniques of applied potential, electrolyte composition, and polymerization temperature, on the morphologies of the PANI nanofibers were systematically investigated. The PANI nanofibers obtained have promising applications in supercapacitors whose specific capacitance is as high as 1.21 × 103 F/g, which is the highest value possible using sulfuric acid (1.00 M H2SO4) as electrolyte. In addition, the formation mechanism of PANI nanofibers is discussed.

Keywords

Electrochemical synthesisNanostructurePolymer
Type
Articles
Information
Journal of Materials Research , Volume 23 , Issue 9 , September 2008 , pp. 2326 - 2332
Copyright
Copyright © Materials Research Society 2008

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References

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