Abstract
In the present work we report ferric oxide (α-Fe2O3) and conducting polyaniline–ferric oxide (PANI–Fe2O3) composite thin films prepared using simple electrodeposition technique. The structural and morphological analysis was carried out by X-ray diffraction and scanning electron microscopy. The supercapacitive properties of these films were examined using cyclic voltammetry, charge–discharge studies, and electrochemical impedance spectroscopy in 0.5 M Na2SO4 electrolyte. It is observed that the PANI–Fe2O3 composite electrode delivered higher specific capacitance than individual α-Fe2O3. Also the composite thin film electrode exhibits excellent specific capacitance retention of about 87 % over 1000 CV scan cycles as compared to α-Fe2O3 electrode, which exhibits only 84 % retention capacity.
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Authors are thankful to Department of Atomic Energy-Board of Research in Nuclear Sciences (DAE-BRNS) for financial support through Grant No. 2013/34/BRNS/2691.
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Padwal, P.M., Kadam, S.L., Mane, S.M. et al. Enhanced specific capacitance and supercapacitive properties of polyaniline–iron oxide (PANI–Fe2O3) composite electrode material. J Mater Sci 51, 10499–10505 (2016). https://doi.org/10.1007/s10853-016-0270-4
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DOI: https://doi.org/10.1007/s10853-016-0270-4