Radical addition of perfluorinated alkyl iodides to multi-layered graphene and single-walled carbon nanotubes
A simple one-pot reaction that serves to functionalize graphite nanosheets (graphene) and single-walled carbon nanotubes (SWNTs) with perfluorinated alkyl groups is reported. Free radical addition of 1-iodo-1H,1H,2H, 2H-perfluorododecane to ortho-dichlorobenzene suspensions of the carbon nanomaterial is initiated by thermal decomposition of benzoyl peroxide. Similarly, UV photolysis of 1-iodo-perfluorodecane serves to functionalize the carbon materials. Perfluorododecyl-SWNTs, perfluorododecyl-graphene, and perfluorodecyl-graphene are characterized by infrared (IR) and Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), and atomic force microscopy (AFM). The products show enhanced dispersability in CHCl3 as compared to unfunctionalized starting materials. The advantage of this one-pot functionalization procedure lies in the use of pristine graphite as starting material thereby avoiding the use of harsh oxidizing conditions.
- Radical addition of perfluorinated alkyl iodides to multi-layered graphene and single-walled carbon nanotubes
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Volume 3, Issue 2 , pp 138-145
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- Tsinghua Press
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- single-walled carbon nanotube
- radical addition
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- Author Affiliations
- 1. Richard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University, Houston, Texas, 77005, USA