Abstract
Aminocyclohexane-N′-methylurea was synthesised and characterised using FT-IR, H1NMR and C13NMR spectra. The newly synthesised compound was tested as a corrosion inhibitor for mild steel in 1 N HCl solution using weight loss method, potentiodynamic polarisation and AC impedance in the temperature range of 303–333 K. The inhibition efficiency was increased with respect to concentration of inhibitor, time and temperature. Potentiodynamic polarisation results revealed that the inhibitor acts as mixed type inhibitor and cathodically predominant. AC impedance study indicates the corrosion of steel was mainly controlled by a charge transfer process. Surface analysis was carried out using FT-IR and SEM techniques. The adsorption of inhibitor follows Tempkin adsorption isotherm. The activation energy (E a) and free energy change (ΔG) for the adsorption process were determined in order to gain information about the inhibitive action.
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Thiraviyam, P., Kannan, K. Inhibition of Aminocyclohexane Derivative on Mild Steel Corrosion in 1 N HCl. Arab J Sci Eng 38, 1757–1767 (2013). https://doi.org/10.1007/s13369-012-0410-3
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DOI: https://doi.org/10.1007/s13369-012-0410-3