In order to investigate the corrosion of carbon steel (C38) in acidic media, experimental studies (weight loss measurements, electrochemical methods, thermodynamic adsorption isotherms and field emission scanning electron microscopy coupled with energy dispersive X-ray) and computational approach were adopted to study the newly synthesized and simple Schiff base structure, namely 4-((phenylimino)methyl) phenol (PIMP) as a corrosion inhibitor for C38 steel in 1M HCl. Characterization techniques (Fourier Transform Infrared spectroscopy, mass spectrometry, proton nuclear magnetic resonance) showed that PIMP was successfully synthesized with a yield of 63%. Experimental methods (weight loss, open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP)) showed that PIMP is a mixed-type inhibitor with an inhibition percentage of 91.1% under optimal conditions (7.5 mM PIMP at 30°C). These experimental results were supported by surface analysis (Field Emission Scanning Electron Microscopy (FESEM) coupled with Energy Dispersive X-Ray (EDX)), where PIMP molecules are adsorbed on the steel surface and form a protective barrier against aggressive ions, thereby limiting steel oxidation. The adsorption of PIMP on the carbon steel surface followed the Langmuir adsorption isotherm along with a mixture of physical and chemical adsorption, forming a complete and dense protective film on the C38 steel surface. Theoretical results using density functional theory (DFT) calculations showed that PIMP contains highly reactive centers and confirmed the experimental results obtained.
Published in | Modern Chemistry (Volume 12, Issue 1) |
DOI | 10.11648/j.mc.20241201.12 |
Page(s) | 6-27 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2024. Published by Science Publishing Group |
Corrosion Inhibition, Schiff Base, Carbon Steel, DFT
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APA Style
Nouteza, A. M., Pengou, M., Ngamy, J. P. M., Hou, P., Tchekwagep, J. J. K., et al. (2024). Synthesis and Performance of a New and Simple Schiff Base Structure for Corrosion Inhibition of C38 steel in 1 M HCl Solution: Experimental Studies and DFT Investigation. Modern Chemistry, 12(1), 6-27. https://doi.org/10.11648/j.mc.20241201.12
ACS Style
Nouteza, A. M.; Pengou, M.; Ngamy, J. P. M.; Hou, P.; Tchekwagep, J. J. K., et al. Synthesis and Performance of a New and Simple Schiff Base Structure for Corrosion Inhibition of C38 steel in 1 M HCl Solution: Experimental Studies and DFT Investigation. Mod. Chem. 2024, 12(1), 6-27. doi: 10.11648/j.mc.20241201.12
AMA Style
Nouteza AM, Pengou M, Ngamy JPM, Hou P, Tchekwagep JJK, et al. Synthesis and Performance of a New and Simple Schiff Base Structure for Corrosion Inhibition of C38 steel in 1 M HCl Solution: Experimental Studies and DFT Investigation. Mod Chem. 2024;12(1):6-27. doi: 10.11648/j.mc.20241201.12
@article{10.11648/j.mc.20241201.12, author = {Armel Megha Nouteza and Martin Pengou and Joliot Perrin Mbiamy Ngamy and Pengkun Hou and Jean Jacques Kouadjo Tchekwagep and Charles Péguy Nanseu-Njiki and Emmanuel Ngameni}, title = {Synthesis and Performance of a New and Simple Schiff Base Structure for Corrosion Inhibition of C38 steel in 1 M HCl Solution: Experimental Studies and DFT Investigation }, journal = {Modern Chemistry}, volume = {12}, number = {1}, pages = {6-27}, doi = {10.11648/j.mc.20241201.12}, url = {https://doi.org/10.11648/j.mc.20241201.12}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.mc.20241201.12}, abstract = {In order to investigate the corrosion of carbon steel (C38) in acidic media, experimental studies (weight loss measurements, electrochemical methods, thermodynamic adsorption isotherms and field emission scanning electron microscopy coupled with energy dispersive X-ray) and computational approach were adopted to study the newly synthesized and simple Schiff base structure, namely 4-((phenylimino)methyl) phenol (PIMP) as a corrosion inhibitor for C38 steel in 1M HCl. Characterization techniques (Fourier Transform Infrared spectroscopy, mass spectrometry, proton nuclear magnetic resonance) showed that PIMP was successfully synthesized with a yield of 63%. Experimental methods (weight loss, open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP)) showed that PIMP is a mixed-type inhibitor with an inhibition percentage of 91.1% under optimal conditions (7.5 mM PIMP at 30°C). These experimental results were supported by surface analysis (Field Emission Scanning Electron Microscopy (FESEM) coupled with Energy Dispersive X-Ray (EDX)), where PIMP molecules are adsorbed on the steel surface and form a protective barrier against aggressive ions, thereby limiting steel oxidation. The adsorption of PIMP on the carbon steel surface followed the Langmuir adsorption isotherm along with a mixture of physical and chemical adsorption, forming a complete and dense protective film on the C38 steel surface. Theoretical results using density functional theory (DFT) calculations showed that PIMP contains highly reactive centers and confirmed the experimental results obtained. }, year = {2024} }
TY - JOUR T1 - Synthesis and Performance of a New and Simple Schiff Base Structure for Corrosion Inhibition of C38 steel in 1 M HCl Solution: Experimental Studies and DFT Investigation AU - Armel Megha Nouteza AU - Martin Pengou AU - Joliot Perrin Mbiamy Ngamy AU - Pengkun Hou AU - Jean Jacques Kouadjo Tchekwagep AU - Charles Péguy Nanseu-Njiki AU - Emmanuel Ngameni Y1 - 2024/04/29 PY - 2024 N1 - https://doi.org/10.11648/j.mc.20241201.12 DO - 10.11648/j.mc.20241201.12 T2 - Modern Chemistry JF - Modern Chemistry JO - Modern Chemistry SP - 6 EP - 27 PB - Science Publishing Group SN - 2329-180X UR - https://doi.org/10.11648/j.mc.20241201.12 AB - In order to investigate the corrosion of carbon steel (C38) in acidic media, experimental studies (weight loss measurements, electrochemical methods, thermodynamic adsorption isotherms and field emission scanning electron microscopy coupled with energy dispersive X-ray) and computational approach were adopted to study the newly synthesized and simple Schiff base structure, namely 4-((phenylimino)methyl) phenol (PIMP) as a corrosion inhibitor for C38 steel in 1M HCl. Characterization techniques (Fourier Transform Infrared spectroscopy, mass spectrometry, proton nuclear magnetic resonance) showed that PIMP was successfully synthesized with a yield of 63%. Experimental methods (weight loss, open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP)) showed that PIMP is a mixed-type inhibitor with an inhibition percentage of 91.1% under optimal conditions (7.5 mM PIMP at 30°C). These experimental results were supported by surface analysis (Field Emission Scanning Electron Microscopy (FESEM) coupled with Energy Dispersive X-Ray (EDX)), where PIMP molecules are adsorbed on the steel surface and form a protective barrier against aggressive ions, thereby limiting steel oxidation. The adsorption of PIMP on the carbon steel surface followed the Langmuir adsorption isotherm along with a mixture of physical and chemical adsorption, forming a complete and dense protective film on the C38 steel surface. Theoretical results using density functional theory (DFT) calculations showed that PIMP contains highly reactive centers and confirmed the experimental results obtained. VL - 12 IS - 1 ER -