Author/Authors :
Zhang، نويسنده , , W. and Spinelle، نويسنده , , L. and Dubois، نويسنده , , M. and Guérin، نويسنده , , K. and Kharbache، نويسنده , , H. and Masin، نويسنده , , F. and Kharitonov، نويسنده , , A.P. and Hamwi، نويسنده , , A. G´omez-Brunet، نويسنده , , J. and Varenne، نويسنده , , C. and Pauly، نويسنده , , A. and Thomas، نويسنده , , P. and Himmel، نويسنده , , D. and Mansot، نويسنده , , J.L.، نويسنده ,
Abstract :
Several new synthesis methods of fluorinated carbon nanofibres, such as controlled fluorination using fluorinating agent (TbF4 or XeF2), or assisted fluorination under UV and gamma irradiation, are reviewed and compared with the direct fluorination using undiluted fluorine gas. The results highlight the different fluorination mechanisms for the direct fluorination and the new methods. The other advantage of those alternative fluorination routes is the possibility to provide fine tuning of the fluorination level, i.e. from F/C atomic ratio close to zero, as a functionalization, to the unity (CF1) according to the required application, electrochemical or tribological. Two applications are described in this paper as a function of the fluorine content: protection against ozonation and use as solid lubricants.
Keywords :
fluorination , Carbon nanofibres , Tribology , Ozonation
