Issue 2, 2006
From the journal:

Journal of Materials Chemistry

Purification strategies and purity visualization techniques for single-walled carbon nanotubes

Tae-Jin Park,a   Sarbajit Banerjee,a   Tirandai Hemraj-Bennya  and  Stanislaus S. Wong*ab  

* Corresponding authors

a Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY, USA
E-mail: sswong@notes.cc.sunysb.edu, sswong@bnl.gov
Tel: +1 631 632 1703, +1 631 344 3178.

b Materials and Chemical Sciences Department, Brookhaven National Laboratory, Building 480, Upton, NY, USA

Abstract

Traditionally, SWNTs have been prepared by electric arc-discharge, laser ablation, or chemical vapor deposition (CVD) methods, yielding tubes of various diameter and length distributions. However, without exception, as-prepared SWNTs are contaminated with a number of impurities, decreasing the overall yield of usable material. Impurities include transition metal catalysts, such as Fe, Co, and Ni, which are necessary for the growth of SWNTs as well as carbonaceous species such as amorphous carbon, fullerenes, multishell carbon nanocapsules, and nanocrystalline graphite. In this Feature Article, we highlight the role of microscopy in designing and facilitating the interpretation of the success of strategies, including (a) oxidative methods including liquid and gas phase oxidation, (b) chemical functionalization protocols, (c) filtration and chromatography techniques, and (d) microwave heating methods, aimed at rationally purifying single-walled carbon nanotubes.

Graphical abstract: Purification strategies and purity visualization techniques for single-walled carbon nanotubes

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Article information

DOI
https://doi.org/10.1039/B510858F
Article type
Feature Article
Submitted
12 Apr 2005
Accepted
02 Aug 2005
First published
30 Aug 2005

J. Mater. Chem., 2006,16, 141-154

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Purification strategies and purity visualization techniques for single-walled carbon nanotubes

T. Park, S. Banerjee, T. Hemraj-Benny and S. S. Wong, J. Mater. Chem., 2006, 16, 141 DOI: 10.1039/B510858F

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