Theoretical and experimental evaluation of the anticorrosion properties of new Coumarin's derivatives

被引：11
作者：
Khowdiary, Manal M. M. [1 ,2 ]
Taha, Nahla A. A. [3 ]
Barqawi, Aminah A. A. [1 ]
Elhenawy, Ahmed A. A. [4 ,5 ]
Sheta, Mai [6 ]
Hassan, Nazly [7 ]
机构：
[1] Umm El Qura Branch, Fac Sci Appl, Dept Chem, Lieth, Saudi Arabia
[2] Egyptian Petr Res Inst, Appl Surfactant Lab, Cairo 11727, Egypt
[3] City Sci Res & Technol Applicat SRTA City, Modeling & Simulat Res Dept, Adv Technol & New Mat Res Inst, New Borg El Arab City,POB 21934, Alexandria, Egypt
[4] Al Azhar Univ, Dept Chem, Fac Sci, Cairo 11884, Egypt
[5] Al Azhar Univ, Dept Chem, Cairo 11884, Egypt
[6] Alexandria Univ, Dept Chem Engn, Fac Engn, Alexandria, Egypt
[7] City Sci Res & Technol Applicat SRTA City, Composites & Nano Struct Mat Res Dept, Adv Technol & New Mat Res Inst ATNMRI, New Borg El Arab City,POB 21934, Alexandria, Egypt
来源：
ALEXANDRIA ENGINEERING JOURNAL | 2022年 / 61卷 / 09期
关键词：
Coumarin's derivatives; Corrosion inhibitor; DFT; inhibitor; Mild steel (MS); FRIENDLY CORROSION-INHIBITOR; 316L STAINLESS-STEEL; MILD-STEEL; HYDROCHLORIC-ACID; SCHIFF-BASES; COPPER; ADSORPTION; BIOMATERIALS; COMPLEXES; EXTRACT;
D O I：
10.1016/j.aej.2021.12.037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Coumarin has been widely found in some prevailing plants. As green biodegradable inhibitors, the corrosion of mild steel (MS) in 1.0 M aqueous HCl was investigated gravimetrically and electrochemically in the presence and absence a recommended dose (200 ppm) of new synthesized Coumarin's derivatives {HCA-fl-Ala (I), HCA-fl-Ala-OMe (II), HCA-fl-Ala-Hyd (III) and HCA-flAla-Gly (IV)}. The corrosion inhibition efficiency was found exceed 95% in the sequence HCA-flAla (I) < HCA-fl-Ala-OMe (II) < HCA-fl-Ala-Hyd (III) < HCA-fl-Ala-Gly (IV). Finally, the density function theory (DFT) was applied to investigate the molecular electrostatic potential (MEP) to identify the interaction of the evaluated compounds on the metallic surface. (c) 2021 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering, Alexandria University This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/
引用
收藏
页码：6937 / 6948
页数：12
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