Table 1.

Mole Percentage (mol %) of the Separated Peaks for C 1s in the XPS Spectra of GDY and GDYO

XPS Peak	Binding Energy (eV)	Mole Percentage (mol %)
		GDYa	GDYOb
C-C sp2	284.5	56.02 ± 8.82	39.50 ± 8.35
C-C sp	285.5	29.98 ± 4.62	26.30 ± 5.02
C-O	286.4	11.21 ± 3.83	21.70 ± 8.18
C=O	289.0	2.79 ± 0.37	12.50 ± 5.20

^aGraphdiyne.

^bGraphdiyneoxide.