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A Comparative Study on Substituted Polyanilines for Supercapacitors

Published online by Cambridge University Press:  19 April 2012

Punya A. Basnayaka ,
Farah Alvi ,
Manoj K. Ram ,
Robert Tufts  and
Ashok Kumar
Punya A. Basnayaka
Affiliation:
Department of Mechanical Engineering, University of South Florida, Tampa, Florida, 33620, USA.
Farah Alvi
Affiliation:
Department of Electrical Engineering, University of South Florida, Tampa, Florida, 33620, USA.
Manoj K. Ram
Affiliation:
Nanotechnology Research and Education Center, University of South Florida, Tampa, Florida, 33620, USA. Clean Energy Research Center, University of South Florida, Tampa, Florida, 33620, USA.
Robert Tufts
Affiliation:
Nanotechnology Research and Education Center, University of South Florida, Tampa, Florida, 33620, USA.
Ashok Kumar
Affiliation:
Department of Mechanical Engineering, University of South Florida, Tampa, Florida, 33620, USA. Nanotechnology Research and Education Center, University of South Florida, Tampa, Florida, 33620, USA.
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Abstract

The effect of two substituent groups, ortho-methoxy (-OCH3) and methyl (-CH3) in aniline, have been studied for supercapacitor applications. The polyaniline (PANI), poly (o-anisidine) (POA) and poly (o-toluidine) (POT) have been synthesized by oxidative polymerization method, and characterized by Cyclic Voltammetry (CV), UV–visible spectroscopy, Raman spectroscopy, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. The specific capacitance, charging/discharging and electrochemical impedance characteristics of the supercapacitor fabricated using PANI, POA, as well as POT electrodes are evaluated in 2M H2SO4 electrolytic media. The highest specific capacitance of 400 F/g is calculated for PANI, whereas, POA and POT have exhibited 360 F/g and 325 F/g capacitance in supercapacitor studies.

Keywords

electrochemical synthesisenergy storagepolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1388: Symposium F – Mobile Energy , 2012 , mrsf11-1388-f11-04
Copyright
Copyright © Materials Research Society 2012

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References

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