2005
DOI: 10.1081/fst-120027140
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Fluorination of CN x Nanotubes

Abstract: Multiwall CN x nanotubes have been prepared by thermal decomposition of acetonitrile over Co/Ni catalytic particles. The fluorination of nanotubes was performed at roomtemperature by using a gaseous mixture of BrF 3 and Br 2 . Transmission electron microscopy (TEM) and x-ray diffraction (XRD) indicated that only the outer shells of CN x nanotubes were fluorinated, whereas the inner shells remained intact. Xray photoelectron spectroscopy (XPS) showed an oxidation of pyridinic-type nitrogenwith tube fluorination. Show more

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Cited by 4 publications
(2 citation statements)
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“…Another key CNT functionalization route is fluorination, defined as the breaking of the conjugated π layers on CNT surface with the formation of C-F bonds. Methods for fluorination mainly consist in the use of fluorine gas mixtures under proper temperature and positive pressure conditions [100] or plasma gas containing fluorine in vacuum [101]. The obtained materials possess a higher solubility in polar solvents (e.g., 1 mg mL −1 in alcohol) and are suitable for further derivatization processes by nucleophilic reactions [102].…”
Section: Carbon Nanostructures and Cancer: Toxicity Concerns And Needs For Tailored Functionalizationmentioning
confidence: 99%
“…Another key CNT functionalization route is fluorination, defined as the breaking of the conjugated π layers on CNT surface with the formation of C-F bonds. Methods for fluorination mainly consist in the use of fluorine gas mixtures under proper temperature and positive pressure conditions [100] or plasma gas containing fluorine in vacuum [101]. The obtained materials possess a higher solubility in polar solvents (e.g., 1 mg mL −1 in alcohol) and are suitable for further derivatization processes by nucleophilic reactions [102].…”
Section: Carbon Nanostructures and Cancer: Toxicity Concerns And Needs For Tailored Functionalizationmentioning
confidence: 99%
“…Direction fluorination is a method of utilizing fluorine gas or its mixture with other inert gas as the fluorine source to fluorinate carbon directly under the proper temperature and pressure [25][26][27].…”
Section: The Direct Fluorinationmentioning
confidence: 99%