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. 2019 Feb 19;9:2319. doi: 10.1038/s41598-018-37254-7

Figure 3.

Figure 3

Measured EIS Nyquist plots (dotted) and their fitted curves (solid lines) for C-steel in 0.5 M HCl solution in the presence of 0, 20, 30, 35 and 40 µmol L−1 of AEO7 corrosion inhibitor at (A) 20, (B) 30, (C) 40 and (D) 50 °C. The fitting is done using the equivalent circuit shown in Fig. 4.