Journal
APPLIED SURFACE SCIENCE
Volume 256, Issue 20, Pages 6060-6064Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2010.03.120
Keywords
MWCNTs; Nitro groups; Amino groups; Mixed acid; Low temperature; Perylene derivative
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Funding
- Chinese Academy of Sciences (CAS)
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Nitro groups (-NO2) have been introduced on the surface of multi-walled carbon nanotubes (MWCNTs) by treatment with a mixture of concentrated H2SO4/HNO3 solution at low temperature (60 degrees C). Such a low-temperature treatment simultaneously can well prevent MWCNTs from the structural damage. From the nitro-modified MWCNTs, MWCNTs can be readily modified with amino groups by reduction of nitro groups. The prepared amino-modified MWCNTs are highly soluble in polar solvents such as dimethylformamide (DMF), alcohol and acetone. Further, as a demonstration, MWCNTs can be functionalized with guest objects, provided by the strong bonding ability of amino groups. (C) 2010 Elsevier B.V. All rights reserved.
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