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Inhibitive action and synergistic performance of 2-aminoethanol and N,Ndiethyl-ethanamine on copper in hydrochloric acid solution

Fayomi, O. S. I and Popoola, A. P. I. and Popoola, O. M. (2014) Inhibitive action and synergistic performance of 2-aminoethanol and N,Ndiethyl-ethanamine on copper in hydrochloric acid solution. Bulletin of the Chemical Society of Ethiopia, 28 (3). pp. 457-467.

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Abstract

The corrosion inhibition action of copper alloy in 1 M HCl solution in the presence of 2- aminoethanol (A) and N,N-diethylethanamine (D) at 298 oK was investigated using gravimetric and linear polarization method. Surface studies of the copper alloy sample were observed by the help of high resolution scanning electron microscope equipped with energy dispersive spectroscopy (SEM/EDS). The evaluations were taken after 48 h interval for 288 h while the concentration of the inhibitor was varied from 5 to 10% w/v. The result of the examination shows that 2-aminoethanol (A) and N,N-diethylethanamine (D) has a good corrosion inhibition effect for copper alloy in 1 M HCl solutions and its efficiency attains above 96% at 10% w/v concentration. The linear polarization result affirmed that 2- aminoethanol (A) and N,N-diethylethanamine (D) acts as a mixed type corrosion inhibitor. Their adsorption on copper alloy has been found to obey Langmuir adsorption isotherm at all the concentration of inhibitor applied. The outcomes from all approaches are in good agreement with each other.

Item Type: Article
Uncontrolled Keywords: Electrochemical oxidation, Inhibitor, Synergistic assessment, Adsorption,SEM/EDX
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 05 Apr 2018 13:02
Last Modified: 05 Apr 2018 13:02
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/10554

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