Corrosion Inhibition of Cast Iron in Arabian Gulf Seawater by Two Different Ionic Liquids
Abstract
:1. Introduction
2. Results and Discussion
2.1. Weight Loss Measurements
2.2. Open-Circuit Potential
2.3. Electrochemical Impedance Spectroscopy Investigations
Sample | EIS Parameters | |||||
---|---|---|---|---|---|---|
RS/Ω·cm2 | Q | RP1/Ω·cm2 | Cdl/F·cm−2 | RP2/Ω·cm2 | ||
YQ/F·cm−2 | n | |||||
AG-seawater | 5.310 | 0.000948 | 0.73 | 2.340 | 0.000623 | 950 |
+1 mM [EMIm]Cl | 6.043 | 0.000731 | 0.77 | 3.864 | 0.000531 | 1142 |
+5 mM [EMIm]Cl | 7.471 | 0.000601 | 0.75 | 5.841 | 0.000332 | 1376 |
+1 mM [Py1,4]Cl | 6.71 | 0.000643 | 0.45 | 5.072 | 0.000493 | 1212 |
+5 mM [Py1,4]Cl | 8.245 | 0.000531 | 0.44 | 7.247 | 0.000382 | 1364 |
2.4. Cyclic Potentiodynamic Polarization
Electrolyte | CPP Parameters | ||
---|---|---|---|
ECorr/mV | EPit/mV | EProt/mV | |
AG-seawater | −878 | −625 | −668 |
+1 mM [EMIm]Cl | −875 | −560 | −664 |
+5 mM [EMIm]Cl | −872 | −550 | −662 |
+1 mM [Py1,4]Cl | −873 | −570 | −660 |
+5 mM [Py1,4]Cl | −876 | −540 | −655 |
3. Experimental Setup
3.1. Chemicals and Materials
3.2. Weight-Loss Measurements
3.3. Electrochemical Measurements
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Sherif, E.-S.M.; Abdo, H.S.; Abedin, S.Z.E. Corrosion Inhibition of Cast Iron in Arabian Gulf Seawater by Two Different Ionic Liquids. Materials 2015, 8, 3883-3895. https://doi.org/10.3390/ma8073883
Sherif E-SM, Abdo HS, Abedin SZE. Corrosion Inhibition of Cast Iron in Arabian Gulf Seawater by Two Different Ionic Liquids. Materials. 2015; 8(7):3883-3895. https://doi.org/10.3390/ma8073883
Chicago/Turabian StyleSherif, El-Sayed M., Hany S. Abdo, and Sherif Zein El Abedin. 2015. "Corrosion Inhibition of Cast Iron in Arabian Gulf Seawater by Two Different Ionic Liquids" Materials 8, no. 7: 3883-3895. https://doi.org/10.3390/ma8073883