Table 3: Electrochemical parameters associated to the impedance diagrams for mild steel in 1.0 M HCl at different concentrations of ATP at EOCP and at 298 K.
- |
C (M) |
Rs (Ω cm²) |
Rct (Ω cm²) |
Cdl (µF cm-2) |
nct
|
τdl (ms) |
ηEIS (%) |
Blank Solution |
00 |
2.35±0.42 |
39.85±0.74 |
139.24±5.38 |
0.85±0.01 |
5.55±0.003 |
- |
ATP |
10-6
|
2.34±0.19 |
337.6±0.33 |
118.71±3.17 |
0.87±0.01 |
40.07±0.001 |
88.19 |
10-5
|
2.39±0.19 |
347.80±0.42 |
111.88±1.00 |
0.89±0.01 |
38.41±0.001 |
88.54 |
5×10-5
|
6.81±0.21 |
517.9±0.78 |
86.25±1.17 |
0.90±0.01 |
44.67±0.001 |
92.30 |
10-4
|
2.03±0.19 |
642.00±0.28 |
45.04±0.68 |
0.91±0.01 |
28.91±0.001 |
93.79 |
10-3
|
2.43±0.20 |
322.00±0.42 |
71.38±1.78 |
0.89±0.01 |
22.98±0.001 |
87.62 |