Please use this identifier to cite or link to this item:
|Title:||Synthesis, characterization and capacitive performance of hydrous manganese dioxide nanostructures|
|Citation:||Zhang, J., Chu, W., Jiang, J., Zhao, X.S. (2011-03-25). Synthesis, characterization and capacitive performance of hydrous manganese dioxide nanostructures. Nanotechnology 22 (12) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0957-4484/22/12/125703|
|Abstract:||Hydrous manganese dioxide nanostructures were synthesized via a catalytic oxidation reaction mechanism at mild temperatures. It was found that the morphology of the manganese dioxide nanostructures was significantly influenced by the pH of the reaction system. With increasing pH the morphology of manganese dioxide nanostructures changed from urchin-like structures to nanobelts. The capacitive performance was investigated by using cycle voltammetry and galvanostatic charge/discharge techniques. Hydrous manganese dioxide nanostructures obtained from a basic solution exhibited a capacitance of 262 F g-1 at a current density of 250 mA g-1 and a capacitive retention of 75% after 1200 cycles, suggesting that this is a promising electrode material for supercapacitors. The high specific capacitance is attributed to the hydrous nature coupled with a high surface area (181 m 2 g-1) of the manganese dioxide nanostructure. © 2011 IOP Publishing Ltd.|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 19, 2018
WEB OF SCIENCETM
checked on Sep 5, 2018
checked on Sep 21, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.