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
Language
- eng