Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.micromeso.2011.06.002
Title: Improving the electrocapacitive properties of mesoporous CMK-5 carbon with carbon nanotubes and nitrogen doping
Authors: Lei, Z. 
Bai, D.
Zhao, X.S. 
Keywords: Carbon nanotube
Chemical vapor deposition
Electrode materials
Nitrogen-doped CMK-5
Supercapacitive performance
Issue Date: Jan-2012
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
URI: http://scholarbank.nus.edu.sg/handle/10635/85302
ISSN: 13871811
DOI: 10.1016/j.micromeso.2011.06.002
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

46
checked on Jul 14, 2018

WEB OF SCIENCETM
Citations

43
checked on Jun 18, 2018

Page view(s)

46
checked on Jun 22, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.