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Materials 2012, 5(7), 1258-1266; doi:10.3390/ma5071258
Article

Pseudocapacitive Effects of N-Doped Carbon Nanotube Electrodes in Supercapacitors

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Received: 2 July 2012; in revised form: 13 July 2012 / Accepted: 17 July 2012 / Published: 19 July 2012
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Abstract: Nitrogen- and micropore-containing carbon nanotubes (NMCNTs) were prepared by carbonization of nitrogen-enriched, polymer-coated carbon nanotubes (CNTs), and the electrochemical performances of the NMCNTs with different heteroatom contents were investigated. NMCNTs-700 containing 9.1 wt% nitrogen atoms had a capacitance of 190.8 F/g, which was much higher than that of pristine CNTs (48.4 F/g), despite the similar surface area of the two CNTs, and was also higher than that of activated CNTs (151.7 F/g) with a surface area of 778 m2/g and a nitrogen atom content of 1.2 wt%. These results showed that pseudocapacitive effects play an important role in the electrochemical performance of supercapacitor electrodes.
Keywords: pseudocapacitance; supercapacitor; carbon nanotubes pseudocapacitance; supercapacitor; carbon nanotubes
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Yun, Y.S.; Park, H.H.; Jin, H.-J. Pseudocapacitive Effects of N-Doped Carbon Nanotube Electrodes in Supercapacitors. Materials 2012, 5, 1258-1266.

AMA Style

Yun YS, Park HH, Jin H-J. Pseudocapacitive Effects of N-Doped Carbon Nanotube Electrodes in Supercapacitors. Materials. 2012; 5(7):1258-1266.

Chicago/Turabian Style

Yun, Young Soo; Park, Hyun Ho; Jin, Hyoung-Joon. 2012. "Pseudocapacitive Effects of N-Doped Carbon Nanotube Electrodes in Supercapacitors." Materials 5, no. 7: 1258-1266.


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