Journal
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
Volume 59, Issue 1, Pages 145-149Publisher
KOREAN PHYSICAL SOC
DOI: 10.3938/jkps.59.145
Keywords
Supercapacitor; Electrodeposition; Cyclic voltametry; Charge-discharge measurements; Polyaniline
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Funding
- National Research Foundation (NRF) of Korea [K20901000002-09E0100-00210, 2009-0076332]
- National Research Foundation of Korea [2009-0076332] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Polyaniline (PANT) thin films were successfully synthesized using the electrodeposition (ED) technique from a mixed solution of 0.2M aniline and 0.2M H2SO4. PANT films with thicknesses of 220 and 250 nm were synthesized. The formation of compact and amorphous PANT films was confirmed with scanning electron microscopy (SEM) and X-ray diffraction (XRD) measurements. The electrochemical supercapacitor properties of the PANT films were examined using cyclic voltammetry and galvanostatic charge-discharge measurements. A specific capacitance of similar to 473 Fg(-1) at 1 mAcm(-2) in a 0.5 M H2SO4 electrolyte was obtained for the PANT electrodes. The electrochemical stability of the PANI electrodes was investigated using cyclic voltammetry and charge-discharge measurements. Both the films were quite stable with 16% capacitance loss after a few initial charge-discharge cycles.
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