Table 1 Deconvolution analysis data for the C1s spectrum.

Sample	C1s-XPS	Gravity center	FWHM	Integrated area %
S1	Fe-carbide sp²-carbon sp³-carbon C-OO-C=O	283.61 284.56 285.38 286.40 288.75	0.51 0.97 1.02 1.51 3.95	2.5 68.8 17.7 7.4 3.9
S2	Fe-carbide sp²-carbon sp³-carbon C-O O-C=O	282.75 284.03 285.01 285.69 286.97	0.5 1.23 0.72 1.15 2.95	0.5 80.4 8.3 7.2 3.6
S3	Fe-carbide sp²-carbon sp³-carbon C-O O-C=O	283.41 284.17 284.92 285.68 288.56	0.77 0.87 0.88 1.71 5.09	6.1 58.2 13.2 12.1 10.4
S4	Fe-carbide sp²-carbon sp³-carbon C-O O-C=O	283.96 284.62 285.28 286.48 288.45	1.04 0.85 1.20 1.40 3.46	9.4 48.9 29.9 8.3 3.5
S5	Fe-carbide sp²-carbon sp³-carbon C-O O-C=O	283.58 284.40 285.32 286.40 288.29	0.78 0.91 0.97 0.97 4.23	5.0 66.9 16.8 4.5 6.8
S6	Fe-carbide sp²-carbon sp³-carbon C-O O-C=O	283.12 284.12 285.12 286.05 288.42	0.40 1.03 0.87 1.25 4.22	1.7 69.5 13.2 7.5 8.1

Results for samples S1, S2, S3, S4, S5, and S6. The sp³ signal could be attributed to the presence of organic ether (R-O-R) and organic ester (RCOO-R) groups attached to the surface of N-CSTNs.

Quick links

Search