Addition of Carbon Radicals Generated from Organic Peroxides to Single Wall Carbon Nanotubes

Polona Umek, Jin Won Seo, Klara Hernadi, Ales Mrzel, Peter Pechy, Dragan D. Mihailovic, László Forró

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Abstract

Single wall carbon nanotubes (SWNT) were functionalized via addition of carbon radicals, which were generated by thermal decomposition of diacyl and dibenzoyl peroxides. Reaction products were investigated with TEM, Raman scattering, TGA, UV-Visible spectroscopy, FTIR, and 1H NMR. In Raman spectra of functionalized SWNT materials one of the radial breathing modes with a maximum at 260 cm-1 diminished completely. At the same time, the intensity ratio between the G- and D-bands decreased in comparison to that in the spectrum of raw SWNT material. From TGA measurements we conclude that SWNTs were derivatized up to 2.9-6.1 wt. % with functionalizing moieties. The loss of van Hove singularities in UV-Visible spectra of functionalized SWNTs also indicates a covalent modification of SWNTs.

Original languageEnglish
Pages (from-to)4751-4755
Number of pages5
JournalChemistry of Materials
Volume15
Issue number25
DOIs
Publication statusPublished - Dec 16 2003

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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    Umek, P., Seo, J. W., Hernadi, K., Mrzel, A., Pechy, P., Mihailovic, D. D., & Forró, L. (2003). Addition of Carbon Radicals Generated from Organic Peroxides to Single Wall Carbon Nanotubes. Chemistry of Materials, 15(25), 4751-4755. https://doi.org/10.1021/cm0310162