首页    期刊浏览 2024年12月15日 星期日
登录注册

文章基本信息

  • 标题:Comparative study of low carbon steel corrosion inhibition in 1M HCl by 1,2,4-triazole-5-thione derivatives
  • 本地全文:下载
  • 作者:AitHaddou B. ; Chebabe D. ; DermajA.
  • 期刊名称:Journal of Materials and Environmental Science
  • 印刷版ISSN:2028-2508
  • 出版年度:2016
  • 卷号:7
  • 期号:6
  • 页码:2191-2200
  • 出版社:University of Mohammed Premier Oujda
  • 摘要:The inhibition of carbon steel in 1M HCl by synthesised 3 -methyl-1,2,4-triazole-5-thione (MTS) and its derivative surfactant type 1.12-bis(3-méthyl-5(1,12-triazolyl)thiol)dodecane (DTC12) has been studied by electrochemical polarization and electrochemical impedance spectroscopy (EIS). The results obtained reveal that these compounds are efficient inhibitors. The inhibition efficiency increases with the increase of inhibitors concentrations and reached 95% at 10 .3 M for DTC12. Potentiodynamic polarization studies clearly reveal that the presence of compounds studied does not change the mechanism of hydrogen evolution and that they act as mixed type inhibitors. This result was confirmed by the electrochemical impedance spectroscopy measurements. In addition, the impedance diagrams were co mposed of two capacitive loops. The first loop was attributed to the formation of a protective layer while the second was attributed to the charge transfer resistance. The DTC12 compound was selected as the best inhibitor. A theoretical study of the corrosion inhibition efficiency of the tested compounds, was carried out using density functional theory (DFT) at the B3LYP/6-31G (d) level of theory. Molecular properties were found to be in good agreement with the inhibition efficiency obtained from electrochemical techniques
  • 关键词:Corrosion; Inhibition; Surfactant; Carbon steel; 1M HCl; DFT
国家哲学社会科学文献中心版权所有