Fitted parameter values obtained from EIS measurements at various applied potentials.

Applied potential (V. vs. Ag/AgCl)	R s (Ω)	R ct (Ω)	W (Ω s−0.5)	CPE
				Q (S sn)	n (×10−3)
−0.98	60.82 ± 0.60	187.60 ± 1.19	58.01 ± 3.76	0.072 ± 0.005	796 ± 1.13
−1.00	59.69 ± 2.60	125.80 ± 6.23	76.65 ± 7.66	0.253 ± 0.013	899 ± 4.58
−1.10	59.12 ± 1.09	64.16 ± 4.62	—	12.0 ± 0.25	999 ± 3.10