Abstract
The manganese oxides (MnO2) with nanostructures was fabricated with non-aqueous alcohol and aqueous solution of potassium permanganate (KMnO4) at room temperature. The test results show that the nano-MnO2 well coated on the surface of carbon nanotube (CNT), while the specific capacitance of the composites with MnO2 deposited on singlewall carbon nanotube (SWNT) was better than coated on multiwalled carbon nanotube (MWNT). The specific capacitance of MnO2 coated on SWNT film can reach 769F/g at scan rate of 5mv/s in the first cycle.
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