Room temperature purification of few-walled carbon nanotubes with high yield.

Journal Article (Journal Article)

Purification of high-quality few-walled carbon nanotubes (fWNTs) was developed by slow but selective oxidation in hydrogen peroxide (H(2)O(2)) at room temperature. The purity, nanotubes' structure, and thermal stability of purified fWNTs were characterized by transmission electron microscopy (TEM), Raman spectroscopy, and thermogravimetric analysis (TGA), respectively. The results showed that fWNTs could be selectively purified by prolonging the stirring time in 30 wt % H(2)O(2) solution. Highly purified fWNTs were obtained, having a high G/D ratio in Raman spectra and good thermal stability indicating the good quality of the purified fWNTs. The approach provides a simple low cost method for purification that also has higher nanotube yield than other purification methods.

Full Text

Duke Authors

Cited Authors

  • Feng, Y; Zhang, H; Hou, Y; McNicholas, TP; Yuan, D; Yang, S; Ding, L; Feng, W; Liu, J

Published Date

  • August 2008

Published In

Volume / Issue

  • 2 / 8

Start / End Page

  • 1634 - 1638

PubMed ID

  • 19206366

Electronic International Standard Serial Number (EISSN)

  • 1936-086X

International Standard Serial Number (ISSN)

  • 1936-0851

Digital Object Identifier (DOI)

  • 10.1021/nn800388g


  • eng