Binding energy (eV) of the Co 2p and O 1s cobalt oxide nanoparticles.

Sample	Co 2p (eV)		ΔE (eV)	Satellite (eV)		O 1s (eV)
	2p3/2	2p1/2		S1	S2	O1	O2	O3
C1	779.68	794.68	15.0	787.18	803.48	529.38	530.78	533.48
C2	779.68	794.68	15.0	787.48	803.68	529.48	530.88	533.68
C3	779.48	794.48	15.0	787.28	803.58	529.28	530.78	534.08
C4	779.38	794.38	15.0	786.98	803.48	529.18	530.68	534.38
C5	779.48	794.48	15.0	787.18	803.48	529.38	530.88	534.68