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Performance of the novel corrosion inhibitor based on Cetamine to protect mild steel in surface water solution: electrochemical and surface studies

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Abstract

A pumping station located in the Moulouya River in Morocco, Northern Africa suffered from extensive corrosion damage. Therefore, in this paper, the inhibition efficiency of Cetamine (CE) for mild steel exposed in water of Moulouya River was examined. This study was performed using electrochemical measurements and surface analysis. The results of potentiodynamic polarization measurements indicated that the CE compound classifies as a cathodic inhibitor type for 500 and 700 ppm, while it acts as a mixed inhibitor type at 1000 ppm CE. It is obtained also that the inhibition efficiency increases with CE concentrations to reach an optimum value of 98% at 1000 ppm CE. In addition, the impedance spectroscopy measurements indicated that this behavior can be explained by the formation of a protective film on the electrode surface. However, this study showed that the CE product takes its performance against aggressive water under various conditions (high Cl concentration ions, electrode rotation rate, temperature, and immersion time).

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Correspondence to Said Abbout.

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Doubi, M., Abbout, S., Erramli, H. et al. Performance of the novel corrosion inhibitor based on Cetamine to protect mild steel in surface water solution: electrochemical and surface studies. Chem. Pap. 75, 1679–1690 (2021). https://doi.org/10.1007/s11696-020-01413-w

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  • DOI: https://doi.org/10.1007/s11696-020-01413-w

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