PMC

rGO_C was prepared by chemical reduction of as-made GO with thiophene whereas rGO_CT was prepared by chemical reduction followed by thermal treatment.

(a) High-resolution C1s spectra of rGO_C. (b) High-resolution C1s spectra of as-prepared rGO_CT by thiophene. (c) Powder XRD pattern of GO (red), rGO_C (blue), rGO_CT (green) and graphite (black). (d) TGA plots of GO (red) and rGO_C (blue) and rGO_CT (green). rGO had better thermal stability than GO.

(a) Raman spectra of GO (red), as-prepared rGO_C(2 mL-T) using 2 mL thiophene (T) (blue), rGO_C(1 mL-T) using 1 mL thiophene (T) (brown), rGO_{C(0.2 mL-T)} using 0.2 mL thiophene (T) (green), rGO_CT(2 mL-T) using 2 mL thiophene with chemical reduction followed by thermal treatment (grey) and rGO_N2H4 by hydrazine (black). (b) Raman spectra of prGO (red) and resultant product from the treatment of prGO with thiophene (black).