Table 3 Potential (mV)- time (min.), polarization parameters of linear polarization, and Tafel plots for CoP5-7 and PC5-7 with the blank solution
Inhibitors name | Eim(mV) | Es.s(mV) | I(µA/Cm2) | CR | IE% | (θ) |
|---|---|---|---|---|---|---|
Blank solution | − 493 | − 487 | 2800 | 2582 | – | – |
CoP5 | − 481 | − 485 | 400 | 369 | 85.2 | 0.852 |
CoP6 | − 485 | − 474 | 330 | 304 | 87.8 | 0.878 |
CoP7 | − 480 | − 469 | 290 | 267 | 89.3 | 0.893 |
PC5 | − 429 | − 531 | 3.3 | 3 | 99.88 | 0.998 |
PC6 | − 549 | − 544 | 2.9 | 3 | 99.90 | 0.999 |
PC7 | − 564 | − 572 | 1.9 | 2 | 99.93 | 0.999 |