Research Article

Nano Research

, Volume 3, Issue 2, pp 138-145

Open Access This content is freely available online to anyone, anywhere at any time.

Radical addition of perfluorinated alkyl iodides to multi-layered graphene and single-walled carbon nanotubes

  • Christopher E. HamiltonAffiliated withRichard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University
  • , Jay R. LomedaAffiliated withRichard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University
  • , Zhengzong SunAffiliated withRichard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University
  • , James M. TourAffiliated withRichard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University Email author 
  • , Andrew R. BarronAffiliated withRichard E. Smalley Institute for Nanoscale Science and Technology, Department of Chemistry and Department of Mechanical Engineering and Materials Science, Rice University Email author 

Abstract

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.

http://static-content.springer.com/image/art%3A10.1007%2Fs12274-010-1007-3/MediaObjects/12274_2010_1007_Fig1_HTML.jpg

Keywords

Nanotube single-walled carbon nanotube graphene radical addition