Tribological properties of fluorinated nanocarbons with different shape factors
| Autor: | Laurence Romana, Marc Dubois, Elodie Disa, Wei Zhang, André Hamwi, P. Thomas, Jean-Louis Mansot, Nadiège Nomède-Martyr, Katia Guérin |
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| Přispěvatelé: | MI, Institut de Chimie de Clermont-Ferrand (ICCF), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Centre National de la Recherche Scientifique (CNRS), Groupe de Technologie des Surfaces et Interfaces (GTSI), Université des Antilles (UA), Centre Commun de Caractérisation des Matériaux des Antilles et de la Guyane (C3MAG), Université des Antilles et de la Guyane (UAG), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Groupe de Technologie des Surfaces et Interfaces [URp2_2] (GTSI), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-SIGMA Clermont (SIGMA Clermont)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Beijing University of Aeronautics and Astronautics (BUAA), Institut de Chimie du CNRS (INC)-SIGMA Clermont (SIGMA Clermont)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-SIGMA Clermont (SIGMA Clermont)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie du CNRS (INC)-SIGMA Clermont (SIGMA Clermont)-Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Fluorination Nanolubricant Nanocarbon Friction Tribology
chemistry.chemical_element 02 engineering and technology 010402 general chemistry 01 natural sciences Biochemistry Inorganic Chemistry symbols.namesake [SPI]Engineering Sciences [physics] Environmental Chemistry Organic chemistry [CHIM]Chemical Sciences Fluorocarbon Physical and Theoretical Chemistry Shape factor [PHYS]Physics [physics] Organic Chemistry Cleavage (crystal) 021001 nanoscience & nanotechnology 0104 chemical sciences 3. Good health chemistry Solid-state nuclear magnetic resonance Chemical engineering Covalent bond Fluorine symbols 0210 nano-technology Raman spectroscopy Carbon |
| Zdroj: | Journal of Fluorine Chemistry Journal of Fluorine Chemistry, Elsevier, 2012, 144, pp.10-16 Journal of Fluorine Chemistry, 2012, 144, pp.10-16. ⟨10.1016/j.jfluchem.2012.08.008⟩ Journal of Fluorine Chemistry, Elsevier, 2012, 144, pp.10-16. ⟨10.1016/j.jfluchem.2012.08.008⟩ |
| ISSN: | 0022-1139 |
| DOI: | 10.1016/j.jfluchem.2012.08.008⟩ |
| Popis: | International audience; The structural parameters of fluorinated nanocarbons presenting different shapes, i.e. spherical, tubular and discotic are investigated and correlated to their tribological properties. Different fluorination rates of graphitized carbon blacks (0D), carbon nanofibres (1D) and a mixture of carbon nanodiscs and nanocones (2D) were achieved under pure molecular fluorine gas flow (direct fluorination). Raman spectrometry, X-ray diffraction and 19F solid state nuclear magnetic resonance underline similar structure and nature of the C-F bonds (covalent) for equivalent fluorine contents. In spite of the similarities of physical-chemical properties at equivalent fluorine contents, the tribological properties of the fluorinated nanocarbons differ. Those properties are discussed taking into account the role of the fluorine content and location of the fluorine atoms in the decrease of the interparticle interactions and in the cleavage of the external fluorocarbon layers to form the tribofilm. Finally, the effect of the shape is discussed. |
| Databáze: | OpenAIRE |
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