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Issue 23, 2013
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Adsorption and inhibition effect of methyl carbamate on copper metal in 1 N HNO3: an experimental and theoretical study

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Abstract

The interaction and corrosion inhibition properties of methyl carbamate on copper metal in 1 N HNO3 have been studied by polarization, electrochemical impedance spectroscopy (EIS), adsorption, surface studies and computational calculations at 300 K. Polarization studies showed that methyl carbamate act as a cathodic type inhibitor. The inhibitive action of this molecule is discussed in terms of blocking the electrode surface by the adsorption of inhibitor molecules obeying Langmuir isotherm. In addition, the local reactivity, analyzed through Fukui functions, shows that the sulphur atom will be the most probable adsorption site. A quantum chemical approach is used to calculate electronic properties of the molecule to ascertain the relation between inhibitive effect and molecular structure.

Graphical abstract: Adsorption and inhibition effect of methyl carbamate on copper metal in 1 N HNO3: an experimental and theoretical study

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Article information


Submitted
22 Feb 2013
Accepted
23 Apr 2013
First published
23 Apr 2013

RSC Adv., 2013,3, 8929-8938
Article type
Paper

Adsorption and inhibition effect of methyl carbamate on copper metal in 1 N HNO3: an experimental and theoretical study

S. John, M. Kuruvilla and A. Joseph, RSC Adv., 2013, 3, 8929
DOI: 10.1039/C3RA40922H

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