Binding energies of different surveys and its expected bonds.

C.	Scan type	Binding energies peaks (eV)	Peak refers to
H4	C 1s	284.5	C–C
		287.1	–C O
		285	C–N
	O 1s	530.1	O2− (Fe2O3 mainly)
		531.5	OH− of FeOOH
		532.45	O2 of adsorbed Water.
	N 1s	398.2	N–Fe
		403	Protonated nitrogen atoms of hydrazine group
	Fe 2p	712.8	FeCl3
		710.6	Fe2O3/Fe3O4/FeOOH
		720	Ferric compounds satellites
H5	C 1s	284	C–C
		288.5	–C O
		286.4	C–N
	O 1s	530.1	O2− (Fe2O3 mainly)
		531.88	OH− of FeOOH
		532.5	O2 of adsorbed water
	N 1s	398.2	N–Fe
		401	Protonated nitrogen atoms of hydrazine group
	Fe 2p	720	Ferric compounds satellites
		710	Fe2O3/Fe3O4/FeOOH
		713	FeCl3
H6	C 1s	284.9	C–C
		288.2	–C O
		286.7	C–N
	O 1s	529.8	O2− (Fe2O3 mainly)
		531.1	OH− of FeOOH
		533	O2 of adsorbed water
	N 1s	399	N–Fe
		403.3	Protonated nitrogen atoms of hydrazine group
	Fe 2p	706.2	Fe0
		710.1	Fe2O3/Fe3O4/FeOOH
		713.2	FeCl3
		720	Ferric compounds satellites