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

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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.

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TABLE I.
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Acknowledgments

This work was supported by the Program of Introducing Talents of Discipline to Universities (no. B06006), Program for Innovative Research Team in University, The Natural Science Foundation of China (NSFC) (Nos. 20476075 and 20676095), the Program for New Century Excellent Talents in University, and Lanlike (Tianjin) Chem-Electronic Hi-Tech Ltd.

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Authors and Affiliations

  1. Department of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, People’s Republic of China

    Haibin Zhang, Hanlu Li & Fengbao Zhang

  2. 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

    Jixiao Wang, Zhi Wang & Shichang Wang

Authors
  1. Haibin Zhang
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  2. Hanlu Li
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  3. Fengbao Zhang
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  4. Jixiao Wang
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  5. Zhi Wang
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  6. Shichang Wang
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Corresponding author

Correspondence to Jixiao Wang.

Appendix

Appendix

FIG. A1
figure FA1

Chronamperometric deposition curves for PANI on a SS substrate. Electrolyte: 1.00 M H2SO4, 0.25 M aniline, and applied potential 0.850 V versus SCE.

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Zhang, H., Li, H., Zhang, F. et al. Polyaniline nanofibers prepared by a facile electrochemical approach and their supercapacitor performance. Journal of Materials Research 23, 2326–2332 (2008). https://doi.org/10.1557/jmr.2008.0304

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  • DOI: https://doi.org/10.1557/jmr.2008.0304

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