Adsorption and inhibition effect of 2-thiohydantoin on mild steel corrosion in 0.1 M HCl
Adsorption and inhibition effect of 2-thiohydantoin on mild steel corrosion in 0.1 M HCl
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DOI：
10.1016/j.corsci.2012.01.013
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发表时间：
2012-05
影响因子：
8.3
通讯作者：
A. Yüce;G. Kardaş
中科院分区：
文献类型：
--
作者：
A. Yüce;G. Kardaş
2-采用动电位极化曲线、电化学阻抗谱（EIS）和线性极化电阻（LPR）研究了乙内酰硫脲（2-THD）在0.1M HCl溶液中对碳钢（MS）的缓蚀作用。研究了温度、析氢量和开路电位随浸泡时间的变化。MS表面，和没有抑制剂已通过SEM表征。结果表明，2-THD在0.1M HCl溶液中表现为混合型缓蚀剂，通过在MS表面的物理吸附同时抑制阴极和阳极过程，吸附等温线符合Langmuir吸附等温式。
2-Thiohydantoin (2-THD) was investigated as a corrosion inhibitor of mild steel (MS) in 0.1M HCl solution using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), and linear polarization resistance (LPR) measurements. The effects of temperature, hydrogen gas evolution and change of open circuit potential with immersion time were also studied. The MS surfaces with, and without inhibitor has been characterized by SEM. The results showed that 2-THD acts as a mixed type inhibitor in 0.1M HCl by suppressing simultaneously the cathodic and anodic processes via physical adsorption on the MS surface followed by the Langmuir adsorption isotherm.