Journal
JOURNAL OF NANOPARTICLE RESEARCH
Volume 18, Issue 6, Pages -Publisher
SPRINGER
DOI: 10.1007/s11051-016-3470-6
Keywords
Nitrogen doping; PECVD; Open-ended CNT; Supercapacitor; Energy storage
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Funding
- Iran National Science Foundation (INSF)
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Nitrogen doping of vertically aligned carbon nanotubes (VACNTs) using plasma-enhanced chemical vapour deposition has been investigated to improve the supercapacitance performance of CNTs. Incorporating electrochemical measurements on the open-ended nitrogen-doped CNTs, showed the achievement of 6 times improvement in the capacitance value. For nitrogen-doped CNTs on silicon substrate, specific capacitance of 60 F g(-1) was obtained in 0.5 M KCl solution, with capacity retention ratio above 90 % after cycled at 0.1 A g(-1) for 5000 cycles. Using this sample, a symmetric supercapacitance was fabricated which showed the power density of 37.5 kW kg(-1). The facile fabrication approach and its excellent capacitance improvement, propose it as an efficient technique for enhancing the supercapacitance performance of the carbon-based electrodes.
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