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首页> 外文期刊>International Journal of Electrochemical Science >Corrosion Inhibition of Mild Steel in 1.0 M HCl by two Hydrazone Derivatives
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Corrosion Inhibition of Mild Steel in 1.0 M HCl by two Hydrazone Derivatives

机译：两种Hy衍生物在1.0 M HCl中对低碳钢的腐蚀抑制作用

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摘要

In this paper, a combined experimental and theoretical study was conducted to explain the scientificmechanism of adsorption of two hydrazone derivatives (HDZs) containing mefenamic acid (MA)namely, (E)-2-((2,3-dimethylphenyl)amino)-N'-(thiophen-2-ylmethylene)benzohydrazide (HDZ-S) and(E)-2-((2,3-dimethylphenyl)amino)-N'-(furan-2-ylmethylene)benzohydrazide (HDZ-O) on mild steel(MS) in 1.0 M HCl. Electrochemical techniques and scanning electron microscope (SEM) wereperformed to evaluate the corrosion inhibition performances. Electrochemical results disclosed that thetwo compounds could effectively control the dissolution rate of mild steel in acidic medium throughphysicochemical adsorption following Langmuir adsorption model. Potentiodynamic polarizationcurves indicated that the furocoumarin molecules could be classified as mixed-type inhibitors bypreventing anodic metal dissolution and cathodic hydrogen evolution reaction. The results of SEMexperiment agree with electrochemical results and confirm the effective adsorption of both compoundson the steel surface.
机译：本文进行了实验和理论相结合的研究，以解释两种含有甲芬那酸（MA）的衍生物（HDZs）吸附（E）-2-（（2,3-二甲基苯基）氨基）-的科学机理。 N'-（噻吩-2-基亚甲基）苯并肼（HDZ-S）和（E）-2-（（2,3-二甲基苯基）氨基）-N'-（呋喃-2-基亚甲基）苯并肼（HDZ-O）在1.0 M HCl中的低碳钢（MS）上用电化学技术和扫描电子显微镜（SEM）对缓蚀性能进行评价。电化学结果表明，通过兰格缪尔吸附模型的物理化学吸附，两种化合物均可有效地控制低碳钢在酸性介质中的溶解速率。电位动力学极化曲线表明，呋喃香豆素分子可通过防止阳极金属溶解和阴极氢放出反应而归类为混合型抑制剂。 SEM实验结果与电化学结果吻合，证实了两种化合物在钢表面的有效吸附。

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