Table 4.

Main chemical compositions on RNC surfaces.

Groups	Atomic %			C/O
	C 1s	O 1s	Si 2p
C	51.17	36.90	9.75	1.39
SB	56.30	33.94	7.69	1.66
HF	69.68	27.50	0.09	2.53
CAP-He	29.12	50.93	16.62	0.57
CAP-Ar	28.14	51.2	17.82	0.55