Table 4 EIS parameters for of 316SS in 5.0 M HCl solution with and without LAE extract at 298 K under dynamic conditions.
LAE extract (mg L− 1) | Rs Ω cm2 M ± SD | Rp Ω cm2 M ± SD | Qdl µF cm− 2 M ± SD | χ2 | n | ηR% |
|---|---|---|---|---|---|---|
Blank 50 100 150 200 250 300 | 0.64 ± 0.02 0.65 ± 0.01 0.64 ± 0.01 0.56 ± 0.02 0.66 ± 0.02 0.74 ± 0.03 0.71 ± 0.02 | 22.00 ± 0.85 29.57 ± 1.10 35.60 ± 1.21 51.89 ± 2.32 111.11 ± 2.29 261.90 ± 2.20 305.56 ± 2.94 | 539 ± 3.4 447 ± 3.1 307 ± 2.3 143 ± 2.1 60 ± 1.5 52 ± 1.2 15 ± 0.9 | 1.2 × 10− 3 1.1 × 10− 3 1.7 × 10− 3 1.2 × 10− 3 1.0 × 10− 3 1.2 × 10− 3 1.6 × 10− 3 | 0.88 0.88 0.89 0.91 0.93 0.94 0.94 | - 25.6 38.2 57.6 80.2 91.6 92.8 |
