4,4’-(((2,2-Dimethylpropane-1,3-Diyl)Bis(Azanediyl)Bis(Methylene) Bis(2-Methoxyphenol) as New Reduced Form of Schiff Base for Protecting API 5L Grade B in 1 M HCl

被引：0

作者：

Hojat Jafari

Elham Ameri

Majid Rezaeivala

Avni Berisha

机构：

[1] Islamic Azad University,Department of Chemical Engineering, Shahreza Branch

[2] Hamedan University of Technology,Department of Chemical Engineering

[3] University of Prishtina,Department of Chemistry, Faculty of Natural and Mathematics Science

来源：

Arabian Journal for Science and Engineering | 2023年 / 48卷

关键词：

Corrosion inhibitor; Corrosion rate; Adsorption isotherm; Steel; Free energy of adsorption;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Due to the high anti-corrosion property, accessibility as natural materials, being eco-friendly and low cost, the use of reduced form of Schiff base (RSH) for corrosion inhibition of steel remains an important challenge. The RSH mentioned here as a green corrosion inhibitor for steel in 1 M HCl was investigated using weight loss, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization (PDP) methods. When the RSH is added to the 1 M HCl solution, the increased inhibition efficiency and less corrosion attack were observed. The inhibition efficiency was found to increase with increasing inhibitor’s concentration. Polarization data indicated that these compounds act as mixed-type inhibitors. The corrosion efficiency of RSH at an optimal concentration of 2 mg/L was 75. Also, the obtained results from the PDP method indicate that RSH is a mixed-type inhibitor and the adsorption of RSH on the steel surface obeys Langmuir adsorption isotherm. AFM techniques confirmed the presence of the protective film on the steel surface.

引用

页码：7359 / 7372

页数：13

共 44 条

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