共 24 条
Effect of Solvent Solubility Parameters on the Dispersion of Single-Walled Carbon Nanotubes
被引:46
作者:
Cheng, Qiaohuan
[1
]
Debnath, Sourabhi
[1
]
Gregan, Elizabeth
[1
]
Byrne, Hugh J.
[1
]
机构:
[1] Dublin Inst Technol, FOCAS Inst, Sch Phys, Dublin 8, Ireland
基金:
爱尔兰科学基金会;
关键词:
D O I:
10.1021/jp8067188
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:
A systematic study of the effect of a series of organic solvents on the dispersion of as-produced HiPco single-walled carbon nanotubes (SWNTS) has been conducted. UV-vis-NIR absorption spectroscopy coupled with an integrating sphere was employed to differentiate absorbance and scattering. For each solvent, a concentration-dependent study of the absorbance in the normal chamber and in the integrating sphere enabled the calculation of the total extinction coefficient and absorption coefficient. A correlation between the extinction/absorption coefficient and the Hildebrand and Hansen solvent parameters was established, indicating that polar interactions and hydrogen bonding dominate.
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页码:20154 / 20158
页数:5
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