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Issue 112, 2016, Issue in Progress
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A three-dimensional vertically aligned carbon nanotube/polyaniline composite as a supercapacitor electrode

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Abstract

Highly vertically aligned carbon nanotube arrays grown on the surface of pure titanium plates by chemical vapor deposition serve as substrates for electrodepositing polyaniline, thus fabricating three-dimensional carbon nanotube/polyaniline composites. In addition, X-ray diffraction and Raman spectroscopy are applied to investigate the structures of the as-prepared hybrids. Morphological analysis of the nanotube/polyaniline composites is performed by high resolution SEM and transmission electron microscopy. The combination of the three-dimensional carbon nanotube architecture and conducting polyaniline surprisingly generates a synergistic effect on electrochemical performance which is particularly important. Consequently, the vertically aligned carbon nanotube/polyaniline hybrids exhibit excellent characteristics in terms of specific capacitance (752.5 F g−1) and power density (5364 W kg−1) at a scanning rate of 100 mV s−1. Furthermore, the capacity retention can reach over 82% (after 10 000 cycles). This work highlights the critical role of the introduction of vertically laid carbon nanotubes with highly conducting polyaniline in improving the performance of supercapacitors.

Graphical abstract: A three-dimensional vertically aligned carbon nanotube/polyaniline composite as a supercapacitor electrode

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Article information


Submitted
11 Jul 2016
Accepted
01 Oct 2016
First published
20 Oct 2016

RSC Adv., 2016,6, 110592-110599
Article type
Paper

A three-dimensional vertically aligned carbon nanotube/polyaniline composite as a supercapacitor electrode

S. Jiao, T. Li, Y. Zhang, C. Xiong, T. Zhao and M. Khan, RSC Adv., 2016, 6, 110592
DOI: 10.1039/C6RA17674G

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