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Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes

Bulusheva, Lyubov Gennadievna and Fedoseeva, Yuliya V and Flahaut, Emmanuel and Rio, Jérémy and Ewels, Christopher P and Koroteev, Victor O and Van Lier, Gregory and Vyalikh, Denis V and Okotrub, Alexander Vladimirovich Effect of the fluorination technique on the surface-fluorination patterning of double-walled carbon nanotubes. (2017) Beilstein Journal of Nanotechnology, 8. 1688-1698. ISSN 2190-4286

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Official URL: http://doi.org/10.3762/bjnano.8.169

Abstract

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 bonds and a considerable reduction in the intensity of radial breathing modes from the outer shells of DWCNTs are observed for all samples. Differences in the electronic state of fluorine and the C–F vibrations for three kinds of the fluorinated DWCNTs are attributed to distinct local surroundings of the attached fluorine atoms. Possible fluorine patterns realized through a certain fluorination technique are revealed from comparison of experimental NEXAFS F K-edge spectra with quantumchemical calculations of various models. It is proposed that fluorination with F2 and BrF3 produces small fully fluorinated areas and short fluorinated chains, respectively, while the treatment with CF4 plasma results in various attached species, including single or paired fluorine atoms and –CF3 groups. The results demonstrate a possibility of different patterning of carbon surfaces through choosing the fluorination method.

Item Type:Article
Additional Information:Thanks to Beilstein editor. The original PDF of the article can be found at https://www.beilstein-journals.org/bjnano/articles/8/169
HAL Id:hal-01623094
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Donostia International Physics Center - DIPC (SPAIN)
Other partners > IKERBASQUE (SPAIN)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Novosibirsk State University (RUSSIA)
Other partners > Siberian Branch of the Russian Academy of Sciences - SB RAS (RUSSIA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Université de Nantes (FRANCE)
Other partners > Vrije Universiteit Brussel - VUB (BELGIUM)
Laboratory name:
Funders:
Russian Foundation for Basic Research - FP7-PEOPLE-2013-IRSES
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Deposited By: cirimat webmestre
Deposited On:12 Jun 2018 09:03

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