Raman intensity measurements of single-walled carbon nanotube suspensions as a quantitative technique to assess purity

V.M. Irurzun; M.P. Ruiz; D.E. Resasco

doi:10.1016/j.carbon.2010.04.019

Raman intensity measurements of single-walled carbon nanotube suspensions as a quantitative technique to assess purity

V.M. Irurzun, M.P. Ruiz, D.E. Resasco^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

48 Citations (Scopus)

Abstract

A method to assess the purity of single-walled carbon nanotube (SWCNT) bulk samples based on Raman spectroscopy is reported. The new method has higher reproducibility and quantitative precision than those previously used. It consists of measuring the G-band intensity of liquid suspensions of SWCNT samples as a function of solid concentration. A simple equation is proposed in which one of the two adjustable parameters is the SWCNT purity. The method has been applied to a series of samples of similar characteristics, but varying quality. The results are compared to those obtained on the same series of samples using standard analytical techniques, including electron microscopy, thermogravimetric analysis and optical absorption.

Original language	English
Pages (from-to)	2873-2881
Journal	Carbon
Volume	48
Issue number	10
DOIs	https://doi.org/10.1016/j.carbon.2010.04.019
Publication status	Published - Aug 2010
Externally published	Yes

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abstract = "A method to assess the purity of single-walled carbon nanotube (SWCNT) bulk samples based on Raman spectroscopy is reported. The new method has higher reproducibility and quantitative precision than those previously used. It consists of measuring the G-band intensity of liquid suspensions of SWCNT samples as a function of solid concentration. A simple equation is proposed in which one of the two adjustable parameters is the SWCNT purity. The method has been applied to a series of samples of similar characteristics, but varying quality. The results are compared to those obtained on the same series of samples using standard analytical techniques, including electron microscopy, thermogravimetric analysis and optical absorption.",

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AB - A method to assess the purity of single-walled carbon nanotube (SWCNT) bulk samples based on Raman spectroscopy is reported. The new method has higher reproducibility and quantitative precision than those previously used. It consists of measuring the G-band intensity of liquid suspensions of SWCNT samples as a function of solid concentration. A simple equation is proposed in which one of the two adjustable parameters is the SWCNT purity. The method has been applied to a series of samples of similar characteristics, but varying quality. The results are compared to those obtained on the same series of samples using standard analytical techniques, including electron microscopy, thermogravimetric analysis and optical absorption.

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Raman intensity measurements of single-walled carbon nanotube suspensions as a quantitative technique to assess purity

Abstract

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