NanoTeflons: Structure and EELS Characterization of Fluorinated Carbon Nanotubes and Nanofibers

T. Hayashi, M. Terrones, C. Scheu, Y. A. Kim, M. Rühle, T. Nakajima, M. Endo

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

For the first time, we report high-resolution electron energy loss spectroscopy (HREELS) studies on fluorinated carbon nanotubes and nanofibers of various diameters. In addition, we have carried out high-resolution transmission electron microscope studies on the material, as well as HREELS elemental line scans, and elemental mappings. From the experimental EEL near edge structure of the F-K edge, we observed that F establishes two different types of bonds with C: covalent and ionic. From the elemental mapping, we noted that F is always uniformly distributed within the fluorinated carbon tubes of diameters >20 nm. EELS calculations using density functional theory confirmed the existence of covalent and ionic F bonded to the carbon within the tubes at ∼685 and 690 eV, respectively. These values are in good agreement with those obtained experimentally.

Original languageEnglish (US)
Pages (from-to)491-496
Number of pages6
JournalNano letters
Volume2
Issue number5
DOIs
StatePublished - May 2002

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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