Table 1 Electrochemical information obtained from potentiodynamic polarisation, electrochemical impedance spectroscopy, and linear polarisation resistance measurements of AA2024-T3 samples exposed to inhibitor-containing solutions
From: Laying the experimental foundation for corrosion inhibitor discovery through machine learning
Inhibitor | jcorr | Ecorr | Ebr | ∣Z∣2h | ∣Z∣24h | \({\left.{R}_{{\rm {p}}}\right\vert }_{24{\rm {h}}}\) | \(\left\langle {R}_{{\rm {p}}}\right\rangle\) |
|---|---|---|---|---|---|---|---|
(nA cm−2) | (mV) | (mV) | (kΩ cm2) | (kΩ cm2) | (kΩ cm2) | (kΩ cm2) | |
Uninhibited (0.1 M NaCl) | 604 (±108) | −620 (±12) | −486 (±2) | 14 (±0) | 14 (±3) | 11 (±1) | 11 (±1) |
Benzotriazole | 216 (±38) | −500 (±3) | −475 (±4) | 79 (±31) | 107 (±48) | 100 (±44) | 94 (±43) |
2,5-dimercapto-1,3,4 thiadiazole | 3822 (±399) | −604 (±6) | −479 (±6) | 51 (±18) | 3 (±0) | 3 (±0) | 16 (±4) |
2-mercaptobenzimidazole | 79 (±18) | −523 (±6) | −496 (±8) | 80 (±30) | 265 (±80) | 253 (±85) | 207 (±66) |
2-mercaptobenzoate | 261 (±65) | −527 (±16) | −472 (±19) | 130 (±50) | 38 (±16) | 53 (±21) | 135 (±7) |
Sodium acetate | 396 (±54) | −563 (±14) | −473 (±13) | 16 (±2) | 16 (±1) | 13 (±2) | 15 (±1) |
Sodium mercaptoacetate | 57 (±13) | −572 (±25) | −435 (±34) | 203 (±47) | 203 (±64) | 561 (±191) | 555 (±205) |
Ammonium pyrollidinedithiocarbamate | 38 (±4) | −636 (±14) | −488 (±14) | 346 (±34) | 480 (±106) | 335 (±73) | 356 (±173) |
