The adsorption and inhibition efficiency of 2-amino-4-methoxy-6-methyl-1,3,5-triazine for corrosion of mild steel in hydrochloric acid solution
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 1 August 2023
Issue publication date: 20 November 2023
Abstract
Purpose
This study aims to prevent mild steel (MS) against corrosion in 0.5 M HCl solution, 2-amino-4-methoxy-6-methyl-1,3,5-triazine was used. The effectiveness of the compound as a corrosion inhibitor was studied via electrochemical, surface and theoretical calculation techniques.
Design/methodology/approach
For concentrations ranging from 0.5 to 10.0 mM, almost similar polarization resistances were obtained from electrochemical impedance spectroscopy (EIS) and linear polarization resistance tests. It also investigated inhibitive activity of 2-amino-4-methoxy-6-methyl-1,3,5-triazine on the steel surface using scanning electron and atomic force microscope instruments. Langmuir adsorption is the best matched isotherm for the adsorption of the inhibitor to the steel surface.
Findings
EIS method was used to determine inhibition efficiency, which was determined to be 95.7% for 10.0 mM inhibitor containing acid solution. Density functional theory’s predictions for quantum chemistry agreed well with the other experimental results.
Originality/value
The methods used in this study are effective and applicable; the used organic inhibitor is 2-amino-4-methoxy-6-methyl-1,3,5-triazine; and protective effectiveness is important, which is crucial for the task of MS corrosion prevention.
Keywords
Acknowledgements
The MAÜ.BAP.22.LEE.038 grant from the Mardin Artuklu University Scientific Research Projects Coordination Unit provided financial support for this endeavor. The authors appreciate the Scientific Research Programs Coordination Unit at Mardin Artuklu University.
Citation
Ökten, V., Yıldız, R. and Sığırcık, G. (2023), "The adsorption and inhibition efficiency of 2-amino-4-methoxy-6-methyl-1,3,5-triazine for corrosion of mild steel in hydrochloric acid solution", Anti-Corrosion Methods and Materials, Vol. 70 No. 6, pp. 350-360. https://doi.org/10.1108/ACMM-05-2023-2816
Publisher
:Emerald Publishing Limited
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