An electrochemical, long-term immersion, and XPS study of 2-mercaptobenzothiazole as a copper corrosion inhibitor in chloride solution
An electrochemical, long-term immersion, and XPS study of 2-mercaptobenzothiazole as a copper corrosion inhibitor in chloride solution
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DOI：
10.1016/j.corsci.2014.02.016
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发表时间：
2014-06-01
影响因子：
8.3
通讯作者：
Merl, Darja Kek
中科院分区：
文献类型：
--
作者：
Finsgar, Matjaz;Merl, Darja Kek
采用电化学阻抗谱、动电位曲线、三维形貌仪和XPS等测试手段，研究了2-巯基苯并噻唑（MBTH）在3 wt.% Cu溶液中的缓蚀作用NaCl溶液。电化学测量结果表明，铜在MBTH抑制溶液中的腐蚀遵循动力学控制和扩散控制的过程，MBTH作为一种混合型的抑制剂浸泡100小时后，它显着降低表面粗糙度半年后浸泡相比，非抑制溶液。MBTH的氮原子和环外硫原子参与了分子吸附。MBTH表面层厚度估计为1.5 +/-0.5nm。(C)2014爱思唯尔有限公司版权所有。
Using EIS, potentiodynamic curve, 3D-profilometry, and XPS measurements, 2-mercaptobenzothiazole (MBTH) was studied as a corrosion inhibitor for Cu in 3 wt.% NaCI solution. Electrochemical measurements showed that Cu corrosion in MBTH-inhibited solution follows kinetic-controlled and diffusion-controlled processes, that MBTH acts as a mixed-type inhibitor after 100 h of immersion and that it significantly reduces surface roughness after half a year of immersion compared with non-inhibited solution. It is also shown that the N atom and exocyclic S atom of the MBTH are involved in the molecule adsorption. The MBTH surface layer thickness was estimated to be 1.5 +/- 0.5 nm. (C) 2014 Elsevier Ltd. All rights reserved.