THEORETICAL AND EXPERIMENTAL STUDIES OF CORROSION INHIBITION OF THIOHENE-2-ETHYLAMINE ON MILD STEEL IN ACID MEDIA
DOI:
https://doi.org/10.11113/jt.v76.5813Keywords:
Corrosion inhibitor, QSAR, quantum chemical calculation, electrochemical methods, Thiophene -2-ethylamineAbstract
Corrosion inhibition of mild steel in 0.5M H2SO4 at 30oC with thiophene-2- ethylamine (TEA) as inhibitor has been assess by quantitative structure activity relation (QSAR) model and quantum chemical calculations. The results were evaluated using weight loss and electrochemical methods such as potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS). The results showed good performance of TEA in corrosion protection which behaves as mixed inhibitor from PDP. The micrograph from FESEM and EDX dot mapping showed that the inhibitor adsorbed onto the metal surface with different distribution for S, C and N atoms which indicate less damage on the metal surface in the presence of TEA.
References
Abdel-Rehim, S. S., Khaled, K. F. and Al-Mobarak, N. A. 2011. Corrosion Inhibition of Iron in Hydrochloric Acid Using Pyrazole. Arabian Journal of Chemistry. 4: 333-337.
Xu, B., Liu, Y., Yin, X., Yang, W. and Chen, Y. 2013. Experimental and Theoretical Study of Corrosion Inhibition of 3-Pyridinecarbozalde Thiosemicarbazone for Mild Steel in Hydrochloric Acid. Corrosion Science. 74: 206-213.
Döner, A., Şahin, E. A., Kardaş, G. and Serindağ, O. 2013. Investigation of Corrosion Inhibition Effect of 3-[(2-Hydroxy-Benzylidene)-Amino]-2-Thioxo-Thiazolidin-4-One on Corrosion of Mild Steel in the Acidic Medium. Corrosion Science. 66: 278-284.
Yıldız, R., Döner, A., Doğan, T. and Dehri, İ. 2014. Experimental Studies of 2-Pyridinecarbonitrile as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution. Corrosion Science. 82: 125-132.
Khaled, K. F. 2014. Experimental, Monte Carlo and Molecular Dynamics Simulations to Investigate Corrosion Inhibition of Mild Steel in Hydrochloric Acid Solutions. Arabian Journal of Chemistry. 7: 319-326.
Khaled, K. F. 2012. A Predictive Model for Corrosion Inhibition of Mild Steel by Thiophene and Its Derivatives Using Artificial Neural Network. International Journal of electrochemical Science. 27: 1045-1059.
Musa, A. Y., Mohamad, A. B., Kadhum, A. A. H., Takriff, M. S. and Ahmoda, W. 2012. Quantum chemical Studies on Corrosion Inhibition for Series of Thio Compounds on Mild Steel in Hydrochloric Acid. Journal of Industrial and Engineering Chemistry. 18: 551-555.
Ashry, E. S. H. El, Nemr, A. El Essawy, S. A. and Ragab, S. 2008. Corrosion Inhibitors Part V: QSAR of Benzimidazole and 2-Substituted Derivatives as Corrosion Inhibitors by Using the Quantum Chemical Parameters. Progress in Organic Coatings. 61: 11-20.
Usman, B., Maarof, H., Abdallah, H. H., Jamaludin, R., Al-fakih, A. M. and Aziz M. 2014. Corrosion Inhibition Efficiency of Thiophene Derivatives on Mild Steel : A QSAR Model. International Journal of Electrochemical Science. 9: 1678–1689.
Goulart, C. M., Esteves-Souza, A., Martinez-Huitle, C. A. and Rodrigues, C. J. F. 2013. Experimental and Theoretical Evaluation of Semicarbazones and Thiosemicarbazones as Organic Corrosion Inhibitors. Corrosion Science. 67: 281-291.
Golbraikh, A. and Tropsha, A., 2002. Predictive QSAR Modeling Based on Diversity Sampling of Experimental Datasets for the Training and Test Set Selection. Journal of Computer-aided Molecular Design. 16: 357-69.
Golbraikh, A., Muratov, E., Fourches, D. and Tropsha, A. 2014. Data Set Modelability by QSAR. Journal of Chemical Information and Modeling. 5: 1-4.
Cao, Z., Tang, Y., Cang, H. and Xu, J. 2014. Novel Benzimidazole Derivatives as Corrosion Inhibitors of Mild Steel in the Acidic Media. Part II: Theoretical Studies. Corrosion Science. 83: 292-298.
Obot, I. B., Umoren, S. A. and Ebenso, E. E. 2011. Computational Simulation and Statistical Analysis on the Relationship between Corrosion Inhibition Efficiency and Molecular Structure of Some Phenanthroline Derivatives on Mild Steel Surface. International Journal of Electrochemical Science. 6: 5649-5675.
Ebenso, E. E., Isabirye, D. A. and Eddy, N. O. 2010. Adsorption and Quantum Chemical Studies on the Inhibition Potentials of Some Thiosemicarbazides for the Corrosion of Mild Steel in Acidic Medium. International Journal of Molecular Sciences. 11: 2473-98.
Hamdy, A. and El-Gendy, N. S. 2013. Thermodynamic, Adsorption and Electrochemical Studies for Corrosion Inhibition of Carbon Steel by Henna Extract in Acid Medium. Egyptian Journal of Petroleum. 22: 17-25.
Zhang, X., Fan, L., Xu, Y. and Li, J. 2015. Effect of Aluminum on Microstructure, Mechanical Properties and Pitting Corrosion Resistance of Ultra-Pure 429 Ferritic Stainless Steels. Materials & Design. 65: 682-689.
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