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

doi:10.1021/nl025542o

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

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64 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 language	English (US)
Pages (from-to)	491-496
Number of pages	6
Journal	Nano letters
Volume	2
Issue number	5
DOIs	https://doi.org/10.1021/nl025542o
State	Published - May 2002

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl025542o

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title = "NanoTeflons: Structure and EELS Characterization of Fluorinated Carbon Nanotubes and Nanofibers",

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.",

author = "T. Hayashi and M. Terrones and C. Scheu and Kim, {Y. A.} and M. R{\"u}hle and T. Nakajima and M. Endo",

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language = "English (US)",

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journal = "Nano letters",

issn = "1530-6984",

publisher = "American Chemical Society",

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}

TY - JOUR

T1 - NanoTeflons

T2 - Structure and EELS Characterization of Fluorinated Carbon Nanotubes and Nanofibers

AU - Hayashi, T.

AU - Terrones, M.

AU - Scheu, C.

AU - Kim, Y. A.

AU - Rühle, M.

AU - Nakajima, T.

AU - Endo, M.

PY - 2002/5

Y1 - 2002/5

N2 - 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.

AB - 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.

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JO - Nano letters

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

Abstract

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