Enhanced sidewall functionalization of single-wall carbon nanotubes using nitric acid.

@article{Tobias2009EnhancedSF,
  title={Enhanced sidewall functionalization of single-wall carbon nanotubes using nitric acid.},
  author={Gerard Tobias and Lidong Shao and Belin Ballesteros and Malcolm L. H. Green},
  journal={Journal of nanoscience and nanotechnology},
  year={2009},
  volume={9 10},
  pages={6072-7}
}
When a sample of as-made single-walled carbon nanotubes (SWNTs) is treated with nitric acid, oxidation debris are formed due to the functionalization (mainly carboxylation) of the amorphous carbon present in the sample and a continuous coating along the carbon nanotube walls is created preventing the sidewall functionalization of the SWNTs. This oxidation debris can be easily removed by an aqueous base wash leaving behind a sample with a low degree of functionality. After removal of the… CONTINUE READING