期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 11, 期 12, 页码 10690-10705出版社
ESG
DOI: 10.20964/2016.12.46
关键词
copper; 2-mercaptobenzothiazole; corrosion inhibition; electrochemical tests; surface characterization
资金
- National Basic Research Program of China (973 Program) [2014CB643300]
- National Science and Technology Infrastructure Platforms Construction Project
Copper surface was modified by 2-mercaptobenzothiazole (MBT) dissolved in isopropanol for the first time. The interaction between MBT and copper, the corrosion inhibition effect of film formed by MBT on copper surface together with its dynamic evolution in 3.5 wt% sodium chloride solution were investigated by Auger electron spectrum (AES), ex-situ Raman spectrum, open circuit potential, potentiodynamic polarization, cyclic voltammograms, electrochemical impedance spectroscopy tests, and scanning electron microscope (SEM). The results of AES and Raman spectrum show that MBT is prone to interact with copper surface to form a complex film consisting of [Cu(I) MBT](n) (having probably polymeric nature) in isopropanol which would oxidize to degrade to form Cu(II) species and (MBT)(2) with immersion time extending in the presence of oxygen. The electrochemical tests and SEM indicate the complex film improves corrosion resistance of copper to the media containing chloride by inhibiting both anodic and cathodic reactions with interfering the transport of Cucl(2)(-) and O-2, and the inhibition effect of [Cu(I) MBT](n) complex film weakens due to its oxidative degradation with immersion time increasing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据