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Published in:
23-04-2022
Facile synthesis of paratoluene sulfonic acid assisted S-doped polyaniline hybrid composite for energy storage devices
Published in: Journal of Materials Science: Materials in Electronics | Issue 16/2022
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Abstract
Ternary composites were prepared by varying the weight ratio of the individuals, and their electrochemical performances were recorded by cyclic voltammetry, charging-discharging, and electrochemical impedance spectroscopy. Polyaniline-acetylene black-cobalt ferrite having the weight ratio of 4:1:2 (aniline:acetylene black:cobalt ferrite) gave outstanding electrochemical outputs. The corresponding system (4:1:2 ratio based system) had 294.49 F/g of specific capacitance at 1 mA of current for the two-electrode configuration. It exhibited the maximum coulombic efficiency of 99.1%. Specific energy and power values are the highest for this system, which are 40.9 Wh/kg and 125 W/kg, respectively. It has quite good capacitance retention of 83.5% after 8000 cycles. The charge transfer resistance is only 1 Ω for this system.