Quantitative assessment of carbon nanotube dispersions by Raman spectroscopy

被引：65

作者：

Salzmann, Christoph G. ^{[1
]}

Chu, Bryan T. T. ^{[1
]}

Tobias, Gerard ^{[1
]}

Llewellyn, Simon A. ^{[1
]}

Green, Malcolm L. H. ^{[1
]}

机构：

[1] Univ Oxford, Inorgan Chem Lab, Oxford OX1 3QR, England

来源：

CARBON | 2007年 / 45卷 / 05期

基金：

奥地利科学基金会;

关键词：

D O I：

10.1016/j.carbon.2007.01.009

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Aqueous dispersions of single wall carbon nanotubes (C-SWNTs), prepared using different dispersing agents, have been analysed by Raman spectroscopy. Normalising the spectra with respect to the area of the water O-H stretching transition eliminates the effects of photon scattering and absorption on the way through the dispersion, and the dispersions can be assessed quantitatively by comparison of the areas of the carbon nanotube G-band. The normalised G-band areas show linear concentration dependence according to Beer's law. The influences of different dispersing agents and excitation wavelengths are discussed and the results are compared to the commonly used UV-Visible spectroscopic analysis. The method presented here is semi-quantitative and it is proposed to use the most effective dispersing agent found in this study, sodium dodecylbenzene sulfonate (SDBS), as a benchmark for future dispersion experiments. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：907 / 912

页数：6

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