Three novel bolaamphiphiles as corrosion inhibitors for carbon steel in hydrochloric acid: Experimental and computational studies

被引：48
作者：
Hegazy, M. A. [1 ]
Atlam, F. M. [2 ]
机构：
[1] Egyptian Petr Res Inst EPRI, Cairo 11727, Egypt
[2] Tanta Univ, Fac Sci, Dept Chem, Theoret Appl Chem Unit TACU, Tanta, Egypt
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2016年 / 218卷
关键词：
Bolaamphiphiles; Weight loss; Polarization; EIS; Adsorption; Theoretical techniques; MILD-STEEL; COPPER CORROSION; TRIAZOLE DERIVATIVES; CATIONIC SURFACTANTS; MOLECULAR-STRUCTURE; SCHIFF-BASES; BEHAVIOR; ADSORPTION; DFT;
D O I：
10.1016/j.molliq.2016.03.008
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：
Three novel bolaamphiphiles were synthesized and investigated as corrosion inhibitors for carbon steel in 1 M HCl using chemical and electrochemical techniques. The results revealed that the synthesized bolaamphiphiles have good inhibitive effect. The adsorption of bolaamphiphiles on the carbon steel surface in 1 M HCl was found to obey Langmuir isotherm. Polarization results showed that these inhibitors act as mixed-type inhibitors. The inhibition efficiency of the investigated bolaamphiphiles against the corrosion of carbon steel surface was studied by means of semi empirical molecular orbital AM1 calculations. The calculations showed a good correlation between the calculated quantum chemical parameters and the experimental data. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：649 / 662
页数：14
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