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Electrochemical parameters obtained from EIS on mild steel in 2 M H2SO4 in the presence of various concentrations of BQYP solution.
| Cinh (mM) | Rs (Ω cm2) | Qf (μF cm−2) | Rf (Ω cm2) | Cdl (μF cm−2) | Rct (Ω cm2) | Rp (Ω cm2) | IE% |
|---|---|---|---|---|---|---|---|
| 0 | 0.33 | 742 | 1.57 | 46.5 | 10.55 | 12.12 | 0.000 |
| 0.05 | 0.32 | 249 | 1.59 | 40.6 | 19.52 | 21.11 | 42.58 |
| 0.10 | 0.31 | 139 | 19.1 | 45.9 | 38.23 | 57.33 | 78.86 |
| 0.25 | 0.30 | 128 | 6.97 | 9.90 | 66.92 | 73.89 | 83.59 |
| 0.50 | 0.31 | 156 | 0.95 | 42.9 | 80.36 | 81.31 | 85.09 |
| 1.00 | 0.29 | 176 | 3.14 | 18.8 | 108.1 | 111.24 | 89.11 |
