Synthesis and investigation of quinazoline derivatives based on 8-hydroxyquinoline as corrosion inhibitors for mild steel in acidic environment: experimental and theoretical studies

HCl pickling treatment is utilized to remove mill scales from mild steel (MS) surface at different temperatures up to 328 ± 2 K. In order to minimize the metal dissolution, newly multifunctional heterocycles based on 8-hydroxyquinoline namely 3-((8-hydroxyquinolin-5yl)-methyl)-2-phenylquinazolin-4(3...

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Bibliographic Details
Published in:Ionics 2019-07, Vol.25 (7), p.3473-3491
Main Authors: Rbaa, M., Galai, M., Benhiba, F., Obot, I. B., Oudda, H., Ebn Touhami, M., Lakhrissi, B., Zarrouk, A.
Format: Article
Language:English
Subjects:
Chemical analysis
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Correlation analysis
Corrosion inhibitors
Corrosion prevention
Electrochemistry
Energy Storage
Fourier transforms
Hydroxyquinoline
Infrared analysis
Low carbon steels
Maintenance management
NMR
Nuclear magnetic resonance
Optical and Electronic Materials
Original Paper
Pickling
Renewable and Green Energy
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Summary:HCl pickling treatment is utilized to remove mill scales from mild steel (MS) surface at different temperatures up to 328 ± 2 K. In order to minimize the metal dissolution, newly multifunctional heterocycles based on 8-hydroxyquinoline namely 3-((8-hydroxyquinolin-5yl)-methyl)-2-phenylquinazolin-4(3H)-one (HQ-ZH) , 3-((8-hydroxyquinliene-5-yl)-2-(4-nitrophenyl)-quinazolin-4(3H)-one (HQ-ZNO 2 ) , and 2-(2-hydroxyphenyl)-3-((8-hydroxyquinolin-5-yl)-methyl)-quinazolin-4(3H)-one (HQ-ZOH) have been synthesized and characterized by Fourier transform infrared (FT-IR), 1 H , 13 C NMR , and elemental analysis . Their anticorrosive performance for the mild steel in 1 M HCl medium has been determined by electrochemical and theoretical investigations. HQ-ZH , HQ-ZOH , and HQ-ZNO 2 act as excellent inhibitors for MS in 1 M HCl. In addition, the surface of the mild steel has been analyzed by the UV-visible and SEM. The experimental results were correlated with theoretical studies.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-018-2817-7