Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium

The influence of N-(l-morpholinobenzyl)urea (MBU) on corrosion inhibition of mild steel in 1 M HCl was studied by weight loss, effect of temperature, potentiodynamic polarization and electrochemical impedance spectroscopy. The experimental results showed that the inhibition efficiency increases wit...

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Main Authors: M. Anwar Sathiq, A. Jamal Abdul Nasser, P. Mohamed Sirajudeen
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:E-Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2011/892548
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author M. Anwar Sathiq
A. Jamal Abdul Nasser
P. Mohamed Sirajudeen
author_facet M. Anwar Sathiq
A. Jamal Abdul Nasser
P. Mohamed Sirajudeen
author_sort M. Anwar Sathiq
collection DOAJ
description The influence of N-(l-morpholinobenzyl)urea (MBU) on corrosion inhibition of mild steel in 1 M HCl was studied by weight loss, effect of temperature, potentiodynamic polarization and electrochemical impedance spectroscopy. The experimental results showed that the inhibition efficiency increases with increasing of MBU concentrations but decreases with increasing temperatures. The adsorption of MBU on the mild steel surface obeyed the Temkin’s adsorption isotherm. Potentiodynamic polarization curves showed that MBU acted as a cathodic inhibitor predominantly in hydrochloric acid. This was supported by the impedance measurements which showed a change in the charge transfer resistance and double layer capacitance indicating adsorption of MBU on the mild steel surface. Protective film formation against the acid attack is confirmed by SEM.
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series E-Journal of Chemistry
spelling doaj-art-dfadb694248c4767b38973c953cb764e2025-02-03T01:29:59ZengWileyE-Journal of Chemistry0973-49452090-98102011-01-018262162810.1155/2011/892548Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic MediumM. Anwar Sathiq0A. Jamal Abdul Nasser1P. Mohamed Sirajudeen2PG and Research Department of Chemistry, Jamal Mohamed College (Autonomous), Tiruchirappalli-620020, Tamilnadu, IndiaPG and Research Department of Chemistry, Jamal Mohamed College (Autonomous), Tiruchirappalli-620020, Tamilnadu, IndiaPG and Research Department of Chemistry, Khadir Mohideen College, Adirampattinum-614701, Tamilnadu, IndiaThe influence of N-(l-morpholinobenzyl)urea (MBU) on corrosion inhibition of mild steel in 1 M HCl was studied by weight loss, effect of temperature, potentiodynamic polarization and electrochemical impedance spectroscopy. The experimental results showed that the inhibition efficiency increases with increasing of MBU concentrations but decreases with increasing temperatures. The adsorption of MBU on the mild steel surface obeyed the Temkin’s adsorption isotherm. Potentiodynamic polarization curves showed that MBU acted as a cathodic inhibitor predominantly in hydrochloric acid. This was supported by the impedance measurements which showed a change in the charge transfer resistance and double layer capacitance indicating adsorption of MBU on the mild steel surface. Protective film formation against the acid attack is confirmed by SEM.http://dx.doi.org/10.1155/2011/892548
spellingShingle M. Anwar Sathiq
A. Jamal Abdul Nasser
P. Mohamed Sirajudeen
Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium
E-Journal of Chemistry
title Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium
title_full Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium
title_fullStr Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium
title_full_unstemmed Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium
title_short Adsorption and Corrosion Inhibition Effect of N-(l-Morpholinobenzyl)urea onMild Steel in Acidic Medium
title_sort adsorption and corrosion inhibition effect of n l morpholinobenzyl urea onmild steel in acidic medium
url http://dx.doi.org/10.1155/2011/892548
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AT ajamalabdulnasser adsorptionandcorrosioninhibitioneffectofnlmorpholinobenzylureaonmildsteelinacidicmedium
AT pmohamedsirajudeen adsorptionandcorrosioninhibitioneffectofnlmorpholinobenzylureaonmildsteelinacidicmedium