Transition metals oxyfluorides intercalated into graphite: new synthesis route and electrochemical properties
Résumé
A fluorine-oxygen exchange has been realized in several transition metals fluorides (NbF5 , MoF6 , WF6) graphite intercalation compounds (GICs) and oxyfluorides (VOF3 , VOF3-CrO2F2) GICs using hexamethyldisiloxane. The reaction products were characterized by X-ray diffraction, thermogravimetric analysis, FT-IR and 19F NMR spectroscopy. The electrochemical performances of these novel materials were tested in liquid electrolyte conditions.