TABLE 2.

List of the Atomic Composition of Solvothermal Reduced Graphite Oxide (RGO) and Hydrazine RGO As Measured by X-ray Photoelectron Spectroscopy (XPS)

description	drying conditions	C (atomic %)	O (atomic %)	N (atomic %)	C/O ratio
solvothermal RGO	air-dried	80.4	15.6	4.0	5.15
solvothermal RGO	annealed at 1000 °C	83.2	13.8	3.0	6.03
hydrazine RGOa	air-dried	76.0	21.0	3.0	3.62
hydrazine RGOa	annealed at 1000 °C	84.5	13.3	2.2	6.36
GO boiled in H2O for 24 h	air-dried	75.4	21.1	0.5	3.12
GO	air-dried	69.3	29.3	1.1	2.34

^aReproduced from Li et al.¹⁰