Abstract
Polyaniline/TiO2 nanotube arrays composite electrodes were achieved by depositing polyaniline onto TiO2 nanotube arrays through cyclic voltammetry method. Neutral sodium sulfate aqueous solution was used as a testing electrolyte and the effects of monomer solvent on the electrode performance were studied. Results show that the sample prepared in ethanol solution has much better capacitance performance than that in acetone or aqueous solutions. The potential window of the electrode could be enlarged to 2 V (−0.2–1.8 V) and the highest energy density of the active material reached 727.3 J/g. The composite electrode also has excellent rate and cycling performance.
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