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Corrosion Reviews

Editor-in-Chief: Latanision, Ronald M. / Rebak, Raúl B.

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Band 33, Heft 1-2


Novel Schiff base amino acid as corrosion inhibitors for carbon steel in CO2-saturated 3.5% NaCl solution: experimental and computational study

Hany M. Abd El-Lateef / Mohamed Ismael / Ibrahim M.A. Mohamed
Online erschienen: 13.02.2015 | DOI: https://doi.org/10.1515/corrrev-2014-0059


The corrosion inhibition and adsorption behavior of some novel Schiff bases based on amino acids on carbon steel in CO2-saturated 3.5% NaCl solution at 50°C was investigated using gravimetric, potentiodynamic polarization, linear polarization resistance corrosion rate, and scanning electron microscope (SEM)/energy-dispersive X-ray spectroscopy analysis (EDAX) techniques. Results show that the inhibition efficiency increases when the inhibitor concentration increases. Potentiodynamic polarization curves reveal that the used Schiff bases are mixed-type inhibitors. Experimental data indicate that these Schiff base inhibitors adsorb at the carbon steel/solution interface according the Langmuir adsorption isotherm. SEM/EDAX was used to examine the surface morphology of carbon steel samples in the absence and presence of the inhibitors. Quantum chemical calculations were further applied to explain the experimental results.

Keywords: chemisorption; corrosion inhibition; EDAX; quantum chemical calculations; Schiff bases; SEM


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Hany M. Abd El-Lateef

Hany M. Abd El-Lateef obtained his Master’s degree in Physical Chemistry from the University of Sohag, Sohag, Egypt. In 2010, he joined the Department of Chemical Resistance of Materials and Corrosion Protection, Institute of Petrochemical Processes (IPP), Azerbaijan National Academy of Sciences, as a PhD student. In 2013, he obtained his PhD from IPP in Electrochemistry and Corrosion Science under the supervision of Professor V. M. Abbasov. His thesis dealt with the synthesis and study of corrosion inhibitors for protection from CO2 corrosion. Since May 2013, Dr Abd El-Lateef has been a chemistry teacher at the University of Sohag. His research has focused on unraveling corrosion mechanisms and designing corrosion-resistant alloys and coatings as well as the synthesis of new inhibitors for steel pipelines using eco-friendly corrosion inhibitors in acidizing processes in the petroleum industry. Dr Abd El-Lateef has authored 35 papers in international journals and two books.

Mohamed Ismael

Mohamed Ismael Mohamed Yossef received his Bachelor’s degree in Chemistry from South Valley University (Sohag, Egypt) in 2000 and obtained his PhD degree in Applied Chemistry from Tohoku University (Japan). He is currently a lecturer of chemistry at the Department of Chemistry, Faculty of Science, Sohag University, Egypt. His current research interests are quantum chemistry and materials design.

Ibrahim M.A. Mohamed

Ibrahim Mohamed obtained his MSc in Inorganic Chemistry from Sohag University, Egypt, in 2013. He is currently working as an assistant lecturer at Sohag University. His research interests include environmental and energy applications of Schiff bases.

Corresponding author: Hany M. Abd El-Lateef, Faculty of Science, Chemistry Department, Sohag University, Sohag 82524, Egypt, e-mail:

Erhalten: 26.11.2014

Angenommen: 03.12.2014

Online erschienen: 13.02.2015

Erschienen im Druck: 01.03.2015

Quellenangabe: Corrosion Reviews, Band 33, Heft 1-2, Seiten 77–97, ISSN (Online) 2191-0316, ISSN (Print) 0334-6005, DOI: https://doi.org/10.1515/corrrev-2014-0059.

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