. 2020 Jul 22;12(35):39549–39560. doi: 10.1021/acsami.0c09178

Table 3. EIS Fitting Parameters According to the Computed Equivalent Circuits at −0.15 V. Supporting Electrolyte: PBS 0.1 M, pH 7.4. Adopted Probe: [Ru(NH₃)₆]Cl₃, 3 mM.

modified-GCE	R_Ω (Ω cm²)	R_ct (kΩ cm²)	CPE_DL (mF cm^–2)	R_HJ (Ω cm²)	CPE_HJ (mF cm^–2)	R₁ (kΩ cm²)	CPE₁ (mF cm^–2)	R_W (Ω cm²)
bare	21.9	2.95	1.4	-	-	2.0	2.0	-
GO	15.7	0.03	13.7	-	-	4.5	2.0	0.02
SnO₂	20.2	3.90	0.2	-	-	2.4	2.1	-
32:1 SnO₂–GO	20.5	0.90	4.0	3.6	0.03	2.5	2.2	0.05
SnO₂ + GO	19.7	3.76	1.2	-	-	3.7	2.1	0.11

Table 3. EIS Fitting Parameters According to the Computed Equivalent Circuits at −0.15 V. Supporting Electrolyte: PBS 0.1 M, pH 7.4. Adopted Probe: [Ru(NH3)6]Cl3, 3 mM.