Table 1 Percentage of the peak area at 284.7, 286.1, 287.7 and 291.1 eV observed in XPS or HAXPES spectra of graphite, GLG and exfoliated GLG (10% as error for both XPS and HAXPES).
Sample | Method | Percentage of the peak area/% | |||
|---|---|---|---|---|---|
284.7 eV | 286.1 eV | 287.9 eV | 291.1 eV | ||
Graphite | XPS | 95 | 3 | 2 | <1 |
GLG | XPS | 89 | 8 | 3 | 1 |
GLG | HAXPES | 91 | 7 | 2 | <1 |
Exfoliated GLG | XPS | 91 | 7 | 2 | <1 |