Hybrid electrochemical capacitors based on polyaniline and activated carbon electrodes |
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| Affiliation: | 1. Department of Chemistry, Faculty of Science, Bhupal Nobles’ University, Udaipur, India;2. Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Tehran, Iran;3. Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran;4. Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran |
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| Abstract: | The performance of a newly designed, polyaniline–activated carbon, hybrid electrochemical capacitor is evaluated. The capacitor is prepared by using polyaniline as a positive electrode and activated carbon as a negative electrode. From a constant charge–discharge test, a specific capacitance of 380 F g−1 is obtained. The cycling behaviour of the hybrid electrochemical capacitor is examined in a two-electrode cell by means of cyclic voltammetry. The cycle-life is 4000 cycles. Values for the specific energy and specific power of 18 Wh kg−1 and 1.25 kW kg−1, respectively, are demonstrated for a cell voltage between 1 and 1.6 V. |
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