Fig. 9: The Nyquist, phase, and Bode diagrams.

a, d SE-1, b, e SE-2 and c, f SE-3; the equivalent circuit for g 0 to 5-day immersion samples and h 10-day immersion samples, the change value vs. time curves of i R_sum; the polarization curves: j SE-1, k SE-2 and l SE-3.