▎ 摘　　要

In this study, the simultaneous fluorination and exfoliation of graphite by the electrochemical method was studied. The anodic exfoliation of graphite rods in two electrolytes of 10 wt% hydrofluoric acid (HF) and 10 wt% HF + 2.5 g/l TiO2 was carried out by applying various voltages (2.5, 5 and 10 V). The morphological and structural analysis of prepared powders were studied using field emission electron microscopy (FESEM) images, energy dispersive spectroscopy (EDS), atomic force microscopy (AFM), X-ray diffraction (XRD), Raman spectroscopy and Fourier-transform infrared (FTIR) spectroscopy. Results indicated that by applying higher voltages, the graphene sheets with a lower number of layers were formed. FTIR spectroscopy and EDS analysis showed the successful fluorination of the graphene with the electrochemical process in both electrolytes. The Raman spectroscopy findings showed that the defect density as well as the degree of fluorination of graphene were decreased by increasing the applied voltages. The related mechanisms for fluorination and exfoliation of graphite were presented in this research.