Journal
JOURNAL OF POWER SOURCES
Volume 190, Issue 2, Pages 592-595Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2009.01.056
Keywords
Conducting polymer; Poly(o-anisidine-co-metanilic acid); Potentiodynamic: activated carbon; Supercapacitor; Cyclic voltammetry
Funding
- Korean Government (MOEHRD) [KRF-2007-412J02003]
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A poly(o-anisidine-co-metanilic acid)/activated carbon composite is evaluated as an active material for electrochemical supercapacitors. Poly(o-anisidine-co-metanilic acid) (PASM) is potentiodynamically deposited on an activated carbon (AC)-coated stainless-steel substrate, in a supporting electrolyte of 1.0M H2SO4 containing dissolved o-anisidine and metanilic acid, at a sweep rate of 50 mV s(-1). Scanning electron micrographs show a uniformly deposited, thick PASM film on the activated carbon. Electrochemical techniques, such as impedance analysis, cyclic voltammetry and galvanostatic experiments, are carried out to investigate the suitability of the PASM/AC electrode for supercapacitor applications. A maximum specific capacitance of 576 Fg(-1) is obtained for PASM/AC at a 5 mA cm(-2) current density. (C) 2009 Elsevier B.V. All rights reserved.
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