Electrochemical nitration of single-wall carbon nanotubes

Yubing Wang, Sanjay V. Malhotra, Frank J. Owens, Zafar Iqbal

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Electrochemical nitration of self-assembled single wall carbon nanotube (SWNT) sheets with -NO2 groups is reported. A SWNT sheet, used as the working electrode in 6 M aqueous solution of potassium nitrite, was anodically oxidized to form -NO2 groups on the SWNTs. Attenuated-total- reflection Fourier-transform infrared and micro-Raman spectroscopy showed the presence of chemisorbed -NO2 groups consistent with transmission electron microscope images of the nanotube bundles after functionalization. Approximately 13% weight loss attributed to C-NO2 bond breaking was measured by thermogravimetry, corresponding to an endothermic dissociation process measured by differential thermal analysis with an onset temperature near 425 °C.

Original languageEnglish (US)
Pages (from-to)68-72
Number of pages5
JournalChemical Physics Letters
Volume407
Issue number1-3
DOIs
StatePublished - May 17 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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