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首页> 外文期刊>Corrosion science >Experimental and theoretical study of corrosion inhibition of 3-pyridinecarbozalde thiosemicarbazone for mild steel in hydrochloric acid
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Experimental and theoretical study of corrosion inhibition of 3-pyridinecarbozalde thiosemicarbazone for mild steel in hydrochloric acid

机译：3-吡啶碳杂二硫代氨基脲对盐酸中低碳钢缓蚀的实验和理论研究

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摘要

The corrosion inhibition effect of 3-pyridinecarboxaldehyde thiosemicarbazone (3-PCT) on mild steel was studied in 1 M HC1 solution by means of weight loss, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) measurements. The surface morphology of mild steel was examined with scanning electron microscopy (SEM) and the mechanism of inhibition was determined by the potential of zero charge (PZC) measurement at the metal-solution interface. Then molecular dynamics simulations were also executed for 3-PCT. The results show that 3-PCT is a good corrosion inhibitor, retarding both cathodic and anodic reactions in hydrochloric acid. The adsorption of 3-PCT on the mild steel surface obeys the Ungmuir isotherm, and the thermodynamic parameters (K_(ads), Ea, △G°_(ads)) were also determined and discussed.
机译：通过失重，电势极化和电化学阻抗谱（EIS）测量，研究了1 M HCl溶液中3-吡啶甲醛硫代半碳酮（3-PCT）对低碳钢的腐蚀抑制作用。用扫描电子显微镜（SEM）检查了低碳钢的表面形态，并通过在金属-溶液界面处的零电荷电势（PZC）测量来确定其抑制机理。然后还对3-PCT进行了分子动力学模拟。结果表明，3-PCT是一种良好的缓蚀剂，可延缓盐酸中的阴极和阳极反应。 3-PCT在低碳钢表面的吸附符合Ungmuir等温线，并且还确定并讨论了热力学参数（K_（ads），Ea，△G°_（ads））。

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  • 来源
    《Corrosion science》 |2013年第9期|206-213|共8页
  • 作者

    Bin Xu; Ying Liu; Xiaoshuang Yin; Wenzhong Yang; Yizhong Chen;

  • 作者单位

    School of Science, Nanjing University of Technology, Nanjing 210009, PR China;

    School of Science, Nanjing University of Technology, Nanjing 210009, PR China;

    School of Science, Nanjing University of Technology, Nanjing 210009, PR China;

    School of Science, Nanjing University of Technology, Nanjing 210009, PR China;

    School of Environmental and Safety Engineering, Jiangsu Polytechnic University, Changzhou 213164, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A. Mild steel; B. Weight loss; B. EIS; C. Acid corrosion;

    机译：A.低碳钢;B.减肥;B.EIS;C.酸腐蚀;

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