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Effect of thickness on the capacitive behavior and stability of ultrathin polyaniline for high speed super capacitors

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Abstract

In this work four polyaniline (PANI) film electrode with different thickness were synthesized by electrochemical method on the surface of glassy carbon (GC) electrode. Four polymer films with various thicknesses from 0.5 to 11 μm were synthesized. Electropolymerization occurs in low monomer concentration. Morphology study of electrode shows that surface structure of polymers depends on film thickness. Capacitance of electrode was studied by CV and charge-discharge (CD) methods. Specific capacitance (SC) of electrodes using cyclic voltammetry were calculated 620, 247 F g–1 for thinnest and thickest polymer film, respectively. Stability of electrodes was studied during 1000 voltammogram cycles. Results show that with the increase of thickness the stability of electrodes enhanced and reach to a maximum and then decreased.

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Authors and Affiliations

  1. Center of Excellence in Electrochemistry, University of Tehran, Tehran, Iran

    Javad Shabani Shayeh, Parviz Norouzi & Mohammad Reza Ganjali

Authors
  1. Javad Shabani Shayeh
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  2. Parviz Norouzi
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  3. Mohammad Reza Ganjali
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Corresponding author

Correspondence to Parviz Norouzi.

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Published in Russian in Elektrokhimiya, 2016, Vol. 52, No. 10, pp. 1048–1052.

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Shayeh, J.S., Norouzi, P. & Ganjali, M.R. Effect of thickness on the capacitive behavior and stability of ultrathin polyaniline for high speed super capacitors. Russ J Electrochem 52, 933–937 (2016). https://doi.org/10.1134/S1023193516100128

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  • DOI: https://doi.org/10.1134/S1023193516100128

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