. 2023 Mar 10;13(12):8000–8014. doi: 10.1039/d3ra00712j

Intensity ratios for several specimens before and after a wear test under different testing conditions.

Compound and conditions^a	Position on the sample	R ^b
C-0 (2.4 wt% CNT)	Pristine	1.65
C-0 (2.4 wt% CNT)	Wear trace	1.51
C-3 (2.4 wt% CNT and 2.5 wt% IL)	Pristine	1.27
C-3 (2.4 wt% CNT and 2.5 wt% IL)	Wear trace	1.39
C-3 (2.4 wt% CNT and 2.5 wt% IL) after wear test with applied potential	Pristine	1.47
	Wear trace	1.46
E-0 (2.4 wt% CB)	Pristine	1.90
E-0 (2.4 wt% CB)	Wear trace	1.80
E-3 (2.4 wt% CB and 2.5 wt% IL)	Pristine	1.85
E-3 (2.4 wt% CB and 2.5 wt% IL)	Wear trace	1.95
E-3 (2.4 wt% CB and 2.5 wt% IL) after wear test with applied potential	Pristine	1.87
	Wear trace	1.91

If not stated otherwise the tribological testing was performed without applied potential with a ball on plate geometry.

All fits spectra were fitted until a coefficient of determination R² > 0.99 was reached.