Application of the Synthesized Novel 3,6,9,12,15,18,21-heptaoxatricosane-1,23-diyl bis(4-((4-(dimethylamino) benzylidene) amino) benzoate) as a Corrosion Inhibitor for Carbon Steel in Acidic Media

被引：21
作者：
El-Tabei, A. S. [1 ]
Hegazy, M. A. [1 ]
机构：
[1] EPRI, Nasr City 11727, Cairo, Egypt
来源：
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2014年 / 35卷 / 09期
关键词：
Acid inhibition; adsorption; EIS; polarization; weight loss; SCHIFF-BASE COMPOUNDS; MILD-STEEL; HYDROCHLORIC-ACID; SULFURIC-ACID; CHLORIDE SOLUTIONS; IODIDE-ION; M HCL; IRON; ADSORPTION; DERIVATIVES;
D O I：
10.1080/01932691.2013.838177
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：
A 3,6,9,12,15,18,21-heptaoxatricosane-1,23-diyl bis(4-((4-(dimethylamino) benzylidene) amino)benzoate) was synthesized and characterized by spectroscopy analysis. The corrosion inhibition effect of the synthesized compound on carbon steel in hydrochloric acid solution had been investigated using potentiodynamic polarization, electrochemical impedance spectroscopy, and weight loss measurements. Polarization studies indicated that the compound acted as a mixed-type inhibitor. Impedance measurement showed that the charge transfer resistance (Rct) increased and double layer capacitance (Cdl) decreased with the increase in the inhibitor's concentration. Adsorption of the inhibitor on the metal surface was found to obey Langmuir isotherm. Quantum chemical parameters were also calculated to characterize adsorption mechanism. Acceptable correlations were obtained between inhibition efficiency and the calculated quantum chemical parameters.
引用
收藏
页码：1289 / 1299
页数：11
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