Acta Phys. -Chim. Sin. ›› 2008, Vol. 24 ›› Issue (06): 951-954.doi: 10.1016/S1872-1508(08)60042-X

• ARTICLE • Previous Articles     Next Articles

Wet Purification of Aligned Carbon Nanotube Arrays and Its Impact on the Morphology of the Carbon Nanotube Arrays

CAO Ling-Chao; LIU Yun-Qi; WANG Yu; WEI Da-Cheng; FU Lei; HU Ping-An; ZHANG Hong-Liang; HUANG Li-Ping; YU Gui   

  1. Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
  • Received:2008-02-22 Revised:2008-03-18 Published:2008-06-03
  • Contact: LIU Yun-Qi

Abstract: A simple acid treatment method was applied to remove the catalyst impurities and other residues contaminated in the vertically aligned carbon nanotube arrays. We demonstrated that acid treatment was an efficient approach for aligned carbon nanotube purification. Scanning electron microscopy and X-ray photoelectron spectroscopy were used to characterize the morphology of the aligned carbon nanotube arrays and to determine the efficiency of the purification. Using hydrochloric acid could efficiently eliminate catalyst impurities and retain the original structures of the aligned carbon nanotube arrays. The method provided a simple, economical, and effective way to purify the aligned carbon nanotubes, and it would promote the applications of vertically aligned carbon nanotube arrays in electronics field.

Key words: Carbon nanotube, Arrays, Wet purification, Nano-electronics


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