Please use this identifier to cite or link to this item:
|Title:||Improving the electrocapacitive properties of mesoporous CMK-5 carbon with carbon nanotubes and nitrogen doping|
|Authors:||Lei, Z. |
Chemical vapor deposition
|Citation:||Lei, Z., Bai, D., Zhao, X.S. (2012-01). Improving the electrocapacitive properties of mesoporous CMK-5 carbon with carbon nanotubes and nitrogen doping. Microporous and Mesoporous Materials 147 (1) : 86-93. ScholarBank@NUS Repository. https://doi.org/10.1016/j.micromeso.2011.06.002|
|Abstract:||Nitrogen-containing carbon composite materials composed of mesoporous carbon CMK-5 and carbon nanotubes (CNTs) were prepared by the chemical vapor deposition method with Fe(NO3)3-impregnated SBA-15 as template and pyridine as the carbon precursor. The Fe nanoparticles confined in the channels of SBA-15 induced the formation of mesoporous carbon characteristic of CMK-5, whereas Fe particles homogeneously dispersed on the external surface of SBA-15 served as catalysts for CNTs growth. The contents of CNTs, the N doping level and the microstruture of the carbon composite were closely related to the initial Fe/Si atomic ratio in SBA-15 template. Incorporation of CNTs in the composite was found to substantially reduce the electric resistance, leading to the composite materials exhibiting excellent rate-performance. A maximum specific capacitance of 208 F/g and a power density of 10 kW/kg were achieved in 6.0 mol/L KOH aqueous electrolyte when these carbon composites were applied as supercapacitor electrodes. Moreover, the composite electrode also exhibited good electrochemical stability with no capacitance loss after 1000 cycles of galvanostatic charge-discharge process. © 2011 Elsevier Inc. All rights reserved.|
|Source Title:||Microporous and Mesoporous Materials|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 22, 2018
WEB OF SCIENCETM
checked on Sep 12, 2018
checked on Aug 3, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.