Effects of chlorinated aromatic solvents on the dispersion of HiPco SWNTs

被引：9

作者：

Cheng, Qiaohuan ^{[1
]}

Debnath, Sourabhi ^{[1
]}

Gregan, Elizabeth ^{[1
]}

Byrne, Hugh James ^{[1
]}

机构：

[1] Dublin Inst Technol, Sch Phys, FOCAS Inst, Dublin 8, Ireland

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2008年 / 245卷 / 10期

基金：

爱尔兰科学基金会;

关键词：

D O I：

10.1002/pssb.200779557

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

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. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：1947 / 1950

页数：4

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