Journal
JOURNAL OF POWER SOURCES
Volume 246, Issue -, Pages 402-408Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.07.086
Keywords
Ordered mesoporous carbon; Carbon nanotube; Nanocomposite; Supercapacitor
Funding
- National Natural Science Foundation of China [21206043, 21236003]
- Basic Research Program of Shanghai [11JC1403000]
- Special Research Fund for the Docoral Program of Higher Education of China [2011007 4110010, 20120074120004]
- Program for New Century Excellent Talents in University [NCET-11-0641]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning [YD0130506]
- Shanghai Pujiang Program [12PJ1401900]
- Fundamental Research Funds for the Central Universities
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A three-dimensional ordered mesoporous carbon (OMC)/carbon nanotubes (CNTs) nanocomposite is prepared via a two-step procedure. Firstly, OMC is synthesized through a co-assembly strategy associated with the incorporation of Ni nanoparticles. Then Ni nanoparticles are used as catalyst for the growth of CNTs. The introduction of CNTs into OMC can construct a 3D conductive network, greatly improving the rate performance of the nanocomposites. The nanocomposite with optimal CNTs content, when applied as supercapacitor electrodes, exhibits a high specific capacitance (338.1 F g(-1) at 1 A g(-1)), excellent rate capability (130.2 F g(-1) at 50 A g(-1)) and high cycling stability (91.6% capacity retention after 4000 cycles) in 6 M KOH aqueous solution. Such intriguing electrochemical performance is mainly attributed to the synergistic effects between OMC and CNTs. It is reckoned that the present 3D OMC/CNTs nanocomposite can serve as a promising electrode material for supercapacitors. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
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