Figure 3
From: Production of Graphite Chloride and Bromide Using Microwave Sparks
Wide survey XPS spectra of the graphene.
(a) G–Cl, (b) G–Br. High-resolution XPS spectra of the graphene. (c) G–Cl, (d) G–Br. Deconvolution revealed the presence of C–C (~284.8 eV), C–O and C–Br (~286.2 eV), C = O (~287.8 eV) and C–Cl (~286.2 eV) species in the films. The insets show high-resolution XPS spectra of the peaks. (e) G–Cl (red), G–Cl after being irradiated by UV (blue), Cl2 adsorbed on graphene (black), Cl2 adsorbed on graphene after being irradiated by UV (green). (f) G–Br (red), G–Br after being irradiated by UV (blue), Br2 adsorbed on graphene (black), Br2 adsorbed on graphene after being irradiated by UV (green). (g) TGA traces of the graphene samples. (h) Raman spectra of G–Cl. (i) Raman spectra of G–Br.
