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A Schiff base compound as effective corrosion inhibitor for magnesium in acidic media

机译：一种席夫碱化合物，作为酸性介质中镁的有效缓蚀剂

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摘要

The inhibition effect of a Schiff base compound (Salcn) on magnesium corrosion was studied using potentiodynamic polarization, EIS (Electrochemical Impedance Spectroscopy) and EN (Electrochemical Noise) methods. It was found that this compound acts as a strong inhibitor for magnesium in 0.01 M HCl. Results showed that this compound acts as a mixed type inhibitor. As the inhibitor concentration increased, the corrosion resistance of magnesium increased. The results of EN measurements in frequency domain were in good agreement with other methods results. It was also found that this inhibitor mainly acts through physical adsorption on the metal surface. Also, adsorption obeys the Freundlich isotherm. SEM (Scanning Electron Microscopy) images revealed that the damage of magnesium surface has diminished in the presence of inhibitor.
机译：使用电位动力学极化，EIS（电化学阻抗谱）和EN（电化学噪声）方法研究了席夫碱化合物（Salcn）对镁腐蚀的抑制作用。发现该化合物在0.01M HCl中作为镁的强抑制剂。结果表明该化合物起混合型抑制剂的作用。随着抑制剂浓度的增加，镁的耐蚀性增加。 EN的频域测量结果与其他方法的结果吻合良好。还发现该抑制剂主要通过物理吸附在金属表面上起作用。而且，吸附遵循弗氏等温线。 SEM（扫描电子显微镜）图像显示，在存在抑制剂的情况下，镁表面的损害已减少。

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  • 来源
    《Materials Chemistry and Physics》 |2013年第3期|794-802|共9页
  • 作者

    D. Seifzadeh; H. Basharnavaz; A. Bezaatpour;

  • 作者单位

    Physical Chemistry Research Laboratory, Applied Chemistry Department, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran;

    Physical Chemistry Research Laboratory, Applied Chemistry Department, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran;

    Inorganic Chemistry Research Laboratory, Applied Chemistry Department, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Corrosion; Electrochemical techniques; Adsorption; SEM;

    机译：腐蚀;电化学技术;吸附;扫描电镜;

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