Table 2 The fitting electrochemical parameters obtained from EIS results for carbon steel immersed in 0.5 M H2SO4 solution in the absence and presence of different concentrations of the IL-CDs.
From: Ionic liquid-assisted biomass-derived N, S-doped carbon dots with enhanced corrosion inhibition
IL-CDs | Rs | CPE | n | Rct | L | Rf | IE |
|---|---|---|---|---|---|---|---|
(mg/L) | (Ω cm2) | Yo (106 Ω−1 Sn cm−2) | (Ω cm2) | (H) | (Ω cm2) | (%) | |
0 | 1.6 | 24.93 | 0.8979 | 10.6 | – | – | – |
15 | 1.5 | 19.46 | 0.9077 | 12.8 | 5305 | 0.1 | 17.2 |
75 | 1.5 | 12.12 | 0.9105 | 31.9 | 1232 | 364.2 | 66.8 |
100 | 1.5 | 9.69 | 0.9200 | 35.4 | 1344 | 323.9 | 70.0 |
150 | 1.4 | 8.38 | 0.9268 | 46.5 | 5085 | 308.6 | 77.2 |
