Hydrous manganese oxide/carbon nanotube composite electrodes for electrochemical capacitors |
| |
Authors: | Y?K?Zhou B?L?He F?B?Zhang Email author" target="_blank">H?L?LiEmail author |
| |
Institution: | (1) College of Chemistry and Chemical Engineering, Lanzhou University, 730000 Lanzhou , People s Republic of China |
| |
Abstract: | A novel type of composite electrode based on hydrous manganese oxide and a single-walled carbon nanotube has been prepared and used in electrochemical capacitors. Cyclic voltammetry, galvanostatic charging/discharging tests and electrochemical impedance measurements were applied to investigate the performance of the composite electrodes with different ratios of hydrous manganese oxide and single-walled carbon nanotube. For comparison, the performance of pure hydrous manganese oxide and pure carbon nanotubes was also studied. In this way, the composite electrode with a 6:4 ratio of hydrous manganese oxide to carbon nanotube was found to be the most promising active material for an electrochemical capacitor, which shows both good capacitance and power characteristics. |
| |
Keywords: | Carbon nanotube Composite electrode Electrochemical capacitor Hydrous manganese oxide |
本文献已被 SpringerLink 等数据库收录! |