Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes
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چکیده
منابع مشابه
Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes
Double-walled carbon nanotubes (DWCNTs) are fluorinated using (1) fluorine F2 at 200 °C, (2) gaseous BrF3 at room temperature, and (3) CF4 radio-frequency plasma functionalization. These have been comparatively studied using transmission electron microscopy and infrared, Raman, X-ray photoelectron, and near-edge X-ray absorption fine structure (NEXAFS) spectroscopy. A formation of covalent C-F ...
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Selective optical property modification of double-walled carbon nanotubes by fluorination.
We found that by fluorination of double-walled carbon nanotubes (DWNTs), it is possible to suppress only the Raman radial breathing mode and absorption peaks from the outer (large diameter) tubes of DWNTs. In contrast, Raman signals from the inner shells showed no difference from the pristine DWNTs. The stability of the inner shells of fluorinated DWNTs was also confirmed from the photoluminesc...
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15 صفحه اولFluorination of single-wall carbon nanotubes
Ž . Purified single-wall carbon nanotubes SWNTs were fluorinated at several different temperatures. Product stoichiometries were determined and electron microscopy was used to verify whether or not the fluorination was destructive of the tubes. SWNTs fluorinated at three different temperatures were then defluorinated using hydrazine. Raman spectroscopy and resistance measurements were utilized ...
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ژورنال
عنوان ژورنال: Beilstein Journal of Nanotechnology
سال: 2017
ISSN: 2190-4286
DOI: 10.3762/bjnano.8.169