Novel Imine-Tethering Cationic Surfactants: Synthesis, Surface Activity, and Investigation of the Corrosion Mitigation Impact on Carbon Steel in Acidic Chloride Medium via Various Techniques
Abstract
:1. Introduction
2. Results and Discussion
2.1. Synthesis
2.2. Surface Activity Measurements
2.3. Weight Loss (WL) Studies
2.4. Potentiodynamic Polarization (PDP)
2.5. Morphology Studies
2.6. Adsorption Isotherm Considerations
2.7. Thermodynamic/Adsorption Calculations
2.8. DFT Calculations
2.9. MC Simulation and the Mechanism of Inhibition
3. Experimental
3.1. Materials
3.2. Equipment and Instrumentation
3.3. Synthesis of the As-Prepared Cationic Surfactant
3.4. Weight Loss (WL) Measurements
3.5. Electrochemical Measurements
3.6. SEM Observations
3.7. Computational Details
3.8. MC Simulations
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
Sample Availability
References
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Comp. | Surface Tension Measurements | Conductivity Measurements | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
CMC a (mM L−1) | CMC b (mM L−1) | γCMC (mN/m) | ΠCMC (mN/m) | Γmax × 1011 (mol cm−2) | Amin (nm2) | CMC (mM L−1) | α | β | (KJ mol−1) | (KJ mol−1) | |
ICS-10 | 1.34 | 0.95 | 36.17 | 35.83 | 7.31 | 1.88 | 1.17 | 0.44 | 0.56 | −26.66 | −30.72 |
ICS-14 | 0.83 | 0.79 | 34.46 | 37.54 | 6.11 | 2.68 | 0.86 | 0.49 | 0.51 | −26.53 | −32.29 |
Inhibitor Code | Inh. Conc. (M) | βa mV·Decade−1 | −βc mV·Decade−1 | Ecor mV (SCE) | icor µA/cm2 | I.E.% | θ |
---|---|---|---|---|---|---|---|
- | 0 | 63 | 214 | −379 | 720 | - | - |
ICS-10 | 5 × 10−6 | 62 | 221 | −373 | 367 | 49.02 | 0.4902 |
1 × 10−5 | 56 | 237 | −372 | 346 | 51.94 | 0.5194 | |
5 × 10−5 | 50 | 208 | −374 | 170 | 76.39 | 0.7639 | |
1× 10−4 | 46 | 242 | −371 | 102 | 85.83 | 0.8583 | |
5 × 10−4 | 55 | 262 | −380 | 61 | 91.53 | 0.9153 | |
ICS-14 | 5 × 10−6 | 51 | 220 | −364 | 203 | 71.81 | 0.7181 |
1 × 10−5 | 50 | 212 | −384 | 126 | 82.50 | 0.8250 | |
5 × 10−5 | 45 | 212 | −377 | 84 | 88.33 | 0.8833 | |
1× 10−4 | 39 | 188 | −386 | 47 | 93.47 | 0.9347 | |
5 × 10−4 | 43 | 188 | −397 | 39 | 94.58 | 0.9458 |
Solution | CR1 293 K | CR2 333 K | θ1 293 K | θ2 333 K | Ea kJ·mol−1 | Qads kJ·mol−1 |
---|---|---|---|---|---|---|
Blank | 1.671 × 10−4 | 4.018 × 10−3 | - | - | 64.498 | - |
ICS-10 | 1.504 × 10−5 | 3.221 × 10−3 | 0.910 | 0.198 | 108.858 | −75.276 |
ICS-14 | 9.758 × 10−6 | 2.87 × 10−3 | 0.941 | 0.285 | 115.290 | −74.980 |
Parameters | ICS-10 | ICS-14 |
---|---|---|
EHOMO (eV) | −4.71 | −4.69 |
ELUMO (eV) | −1.33 | −1.34 |
ΔE (eV) | 3.38 | 3.35 |
(Debye) | 13.23 | 13.31 |
1.69 | 1.68 | |
0.59 | 0.60 | |
ΔN (e) | 0.53 | 0.54 |
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Abd El-Lateef, H.M.; Tantawy, A.H.; Soliman, K.A.; Eid, S.; Abo-Riya, M.A. Novel Imine-Tethering Cationic Surfactants: Synthesis, Surface Activity, and Investigation of the Corrosion Mitigation Impact on Carbon Steel in Acidic Chloride Medium via Various Techniques. Molecules 2023, 28, 4540. https://doi.org/10.3390/molecules28114540
Abd El-Lateef HM, Tantawy AH, Soliman KA, Eid S, Abo-Riya MA. Novel Imine-Tethering Cationic Surfactants: Synthesis, Surface Activity, and Investigation of the Corrosion Mitigation Impact on Carbon Steel in Acidic Chloride Medium via Various Techniques. Molecules. 2023; 28(11):4540. https://doi.org/10.3390/molecules28114540
Chicago/Turabian StyleAbd El-Lateef, Hany M., Ahmed H. Tantawy, Kamal A. Soliman, Salah Eid, and Mohamed A. Abo-Riya. 2023. "Novel Imine-Tethering Cationic Surfactants: Synthesis, Surface Activity, and Investigation of the Corrosion Mitigation Impact on Carbon Steel in Acidic Chloride Medium via Various Techniques" Molecules 28, no. 11: 4540. https://doi.org/10.3390/molecules28114540