Effects of chlorinated aromatic solvents on the dispersion of HiPco SWNTs

Qiaohuan Cheng; Sourabhi Debnath; Elizabeth Gregan; Hugh James Byrne

doi:10.1002/pssb.200779557

Effects of chlorinated aromatic solvents on the dispersion of HiPco SWNTs

Qiaohuan Cheng, Sourabhi Debnath, Elizabeth Gregan, Hugh James Byrne

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

Abstract

A systematic study of the effect of chlorinated aromatic solvents such as monochlorobenzene (MCB), 1,2-dichlorobenzene (o-DCB), 1,3-dichlorobenzene (m-DCB) and 1,2,4-trichlorobenzene (TCB) on the dispersion of HiPco SWNTs has been conducted. UV-Vis-NIR absorption spectroscopy coupled with an integrating sphere is employed to differentiate absorbance and scattering. An investigation of the effect of sonication time on sample preparation shows that sonication has a significant effect on the dispersion of SWNTs in organic solvents. The effect of centrifugation of the samples is also explored. For each solvent, a concentration dependent study demonstrates a clear transition between aggregates and dispersed tubes. A critical examination of the efficacy of the solvents in dispersing and solubilising the nanotubes is presented.

Original language	English
Pages (from-to)	1947-1950
Number of pages	4
Journal	Physica Status Solidi (B) Basic Research
Volume	245
Issue number	10
DOIs	https://doi.org/10.1002/pssb.200779557
Publication status	Published - Oct 2008

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title = "Effects of chlorinated aromatic solvents on the dispersion of HiPco SWNTs",

abstract = "A systematic study of the effect of chlorinated aromatic solvents such as monochlorobenzene (MCB), 1,2-dichlorobenzene (o-DCB), 1,3-dichlorobenzene (m-DCB) and 1,2,4-trichlorobenzene (TCB) on the dispersion of HiPco SWNTs has been conducted. UV-Vis-NIR absorption spectroscopy coupled with an integrating sphere is employed to differentiate absorbance and scattering. An investigation of the effect of sonication time on sample preparation shows that sonication has a significant effect on the dispersion of SWNTs in organic solvents. The effect of centrifugation of the samples is also explored. For each solvent, a concentration dependent study demonstrates a clear transition between aggregates and dispersed tubes. A critical examination of the efficacy of the solvents in dispersing and solubilising the nanotubes is presented.",

author = "Qiaohuan Cheng and Sourabhi Debnath and Elizabeth Gregan and Byrne, \{Hugh James\}",

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AU - Cheng, Qiaohuan

AU - Debnath, Sourabhi

AU - Gregan, Elizabeth

AU - Byrne, Hugh James

PY - 2008/10

Y1 - 2008/10

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AB - A systematic study of the effect of chlorinated aromatic solvents such as monochlorobenzene (MCB), 1,2-dichlorobenzene (o-DCB), 1,3-dichlorobenzene (m-DCB) and 1,2,4-trichlorobenzene (TCB) on the dispersion of HiPco SWNTs has been conducted. UV-Vis-NIR absorption spectroscopy coupled with an integrating sphere is employed to differentiate absorbance and scattering. An investigation of the effect of sonication time on sample preparation shows that sonication has a significant effect on the dispersion of SWNTs in organic solvents. The effect of centrifugation of the samples is also explored. For each solvent, a concentration dependent study demonstrates a clear transition between aggregates and dispersed tubes. A critical examination of the efficacy of the solvents in dispersing and solubilising the nanotubes is presented.

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JO - Physica Status Solidi (B) Basic Research

JF - Physica Status Solidi (B) Basic Research

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ER -

Effects of chlorinated aromatic solvents on the dispersion of HiPco SWNTs

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