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Synthesis and investigation of quinazoline derivatives based on 8-hydroxyquinoline as corrosion inhibitors for mild steel in acidic environment: experimental and theoretical studies
被引:70
|作者:
Rbaa, M.
[1
]
Galai, M.
[2
]
Benhiba, F.
[3
]
Obot, I. B.
[4
]
Oudda, H.
[3
]
Ebn Touhami, M.
[2
]
Lakhrissi, B.
[1
]
Zarrouk, A.
[5
]
机构:
[1] Ibn Tofail Univ, Lab Agroresources Polymers & Proc Engn, Dept Chem, Fac Sci, POB 133, Kenitra 14000, Morocco
[2] Ibn Tofail Univ, Lab Mat Engn & Environm Applicat & Modeling, Fac Sci, POB 133, Kenitra 14000, Morocco
[3] Univ Ibn Tofail, Lab Separat Proc, Fac Sci, POB 133, Kenitra 14000, Morocco
[4] King Fahd Univ Petr & Minerals, Ctr Res Excellence Corros, Dhahran, Saudi Arabia
[5] Mohammed V Univ, Lab Mat Nanotechnol & Environm, Fac Sci, Ave Ibn Battuta BP 1014, Rabat, Morocco
来源:
关键词:
Synthesis;
Quinazolinone derivatives;
Corrosion inhibition;
Electrochemical techniques;
Theoretical studies;
SEM;
1 M HCL;
CARBON-STEEL;
ADSORPTION;
QUINOLINE;
EXTRACT;
PERFORMANCE;
MOLECULES;
SURFACE;
EIS;
D O I:
10.1007/s11581-018-2817-7
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
HCl pickling treatment is utilized to remove mill scales from mild steel (MS) surface at different temperatures up to 328 +/- 2K. 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), H-1,C-13 NMR, and elemental analysis. Their anticorrosive performance for the mild steel in 1M 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 1M 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.
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页码:3473 / 3491
页数:19
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