| 초록 |
Titanium dioxide (TiO2) is promising for supercapacitor owing to its intrinsic properties like high chemical and thermal stability, cost effective and eco-friendly nature. In this study, TiO2 nanotube arrays synthesized by electrochemical anodization on titanium foil for 4 h. at 60 V. Further, this sample characterized by Field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, X-Ray diffraction and electrochechemical measurements to morphological, structural and supercapacitor study. Field emission scanning electron microscopy showed ~ 80 nm diameter of TiO2 nanotube arrays and 18 μm length. The electrochemical measurements revealed large specific capacitance of 265 F g-1, energy density of 36.66 Wh Kg-1 at power density 724 W Kg-1 and long term cycling performance (81 % capacitance retention after 2,000 cycles) for TiO2 thin film. This results point out that the TiO2 nanotube arrays could be a promising electrode material for energy storage devices. |
