Abstract
Incorporation of large aromatic sulfonate (AS) into polyaniline emeraldine base form (PANI-EB) was investigated. Geometrical stability of AS-doped polyaniline was confirmed by molecular modeling calculations. The energy storage (ES) (W h kg −1) of these polymers depends on the size of the AS and the functional group in the dopant. Cyclic voltammetric measurements showed that the electroactivity of the AS-doped PANI, due to the oxidation/reduction of the first redox only of the salt/base PANI. A good linearity between the cathodic peak height ( I pc1) and the square root of the scan rate ( ν ) more than 0.95 over the range 5–100 mV s −1 indicate the electron transfer is diffusion controlled.
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