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4261005 
Journal Article 
Polyaniline/aluminum and iron oxide nanocomposites supercapacitor electrodes with high specific capacitance and surface area 
Arjomandi, J; Lee, JinY; Movafagh, R; Moghanni-Bavil-Olyaei, H; Parvin, MH 
2018 
1 
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry
ISSN: 0022-0728 
810 
100-108 
WOS:000425560800014 
We introduce high-performance polyaniline (PAM) nanocomposite supercapacitors based on gamma aluminum oxide (gamma-Al2O3) and gamma iron (III) oxide (gamma-Fe2O3) nanoparticles with a high specific surface area. PANI and its polymer nanocomposites are synthesized via in situ electropolymerization on gold electrodes. The structures and morphologies are characterized by cyclic voltammetry, FT-IR spectroscopy, SEM, TEM, and EDX. The electrochemical properties and specific surface area of the electrodes are investigated by galvanostatic charge discharge, electrochemical impedance spectroscopy (EIS) and BET theory. The enhanced specific capacitance with higher surface area and conductivities is observed in PANI/gamma-Fe2O3 (342 F/g), PANI/gamma-Al2O3 (292 F/g) and PANI (180 F/g) electrodes with a constant current density of 1A/g. The cyclic performance of the PANI electrodes following 8000 cycles of operations were at 87% (PANI), 91% (PANI/gamma-Al2O3), and 93% (PANI/gamma-Fe2O3) of their initial capacitance. In addition, higher specific capacitances, higher conductivity and cyclic self-stabilities observed for the PANI/nanocomposite electrodes can provide new opportunities in the field of energy storage and supercapacitor applications. 
Polyaniline; Gamma aluminum oxide; Gamma iron (III) oxide; Nanocomposites; Supercapacitors