Table 1.

Extrapolated values of the equivalent circuit elements from the fitting results in Figure 3.

Electrode	CPBS (mM)	RS [Ω]	CPE		CDE [×10−12 F]
			T [×10−9 Ω−1 sP]	P
Bare-ICE	0.1	13104 ± 439.5	6.256 ± 0.265	0.901 ± 0.006	53.92 ± 2.205
	0.3	6329 ± 247.85	6.96 ± 0.347	0.900 ± 0.007	55.8 ± 3.46
	0.5	4616 ± 177.07	6.908 ± 0.331	0.901 ± 0.006	56.79 ± 3.879
	1	3038 ± 107.43	6.789 ± 0.298	0.915 ± 0.005	59.31 ± 4.577
	5	1671 ± 43.82	7.070 ± 0.216	0.923 ± 0.004	67.48 ± 5.0678
	10	1481 ± 40.995	6.249 ± 0.20	0.942 ± 0.004	68.78 ± 5.973
	100	1235 ± 47.21	6.267 ± 0.275	0.954 ± 0.005	74.13 ± 9.766
rGO-ICE	0.1	17571 ± 382.02	168.0 ± 7.575	0.812 ± 0.009	53.91 ± 1.833
	0.3	7896 ± 169.28	164.5 ± 6.857	0.824 ± 0.008	56.33 ± 2.316
	0.5	5832 ± 126.34	158.9 ± 6.566	0.833 ± 0.007	58.19 ± 2.660
	1	4106 ± 85.78	151.7 ± 5.974	0.852 ± 0.007	61.0 ± 3.088
	5	2656 ± 41.0	144.1 ± 4.23	0.882 ± 0.005	64.6 ± 3.02
	10	2384 ± 35.4	140.5 ± 3.969	0.890 ± 0.004	66.75 ± 3.138
	100	2003 ± 33.38	140.4 ± 4.389	0.898 ± 0.005	69.5 ± 3.99