Recently chamber inhibition emerged as a cost efficient and environmentally friendly type of vapor phase inhibition capable of protecting a metal surface from corrosion. In this work we study the structure and properties of a surface layer formed on copper after chamber treatment with 5-chloro-1,2,3-1H-benzotriazole (CBTA) whose protective effect significantly exceeds that of native copper oxide. Using a set of corrosion (recurrent moisture condensation conditions, outdoor tests), electrochemical (anodic potentiodynamic polarization, electrochemical impedance spectroscopy), and physical methods (Kelvin probe force microscopy, X-ray photoelectron spectroscopy), it was shown that the protective effect of CBTA was due to the formation of a thin layer of a complex compound with Cu(I) on the metal surface. With a growth in the chamber treatment temperature, the protective effect first increases due to an increase in the inhibitor vapor pressure and then falls at temperatures above 100°C due to increased heterogeneity of the surface layer.

近来，腔室抑制以能够保护金属表面不受腐蚀的成本有效且对环境友好的气相抑制类型出现。在这项工作中，我们研究了用5-氯-1,2,3-1H-苯并三唑（CBTA）进行腔室处理后在铜上形成的表面层的结构和性能，该保护层的保护效果大大超过了天然氧化铜。使用一组腐蚀（循环水分凝结条件，室外测试），电化学（阳极电位极化，电化学阻抗谱）和物理方法（Kelvin探针力显微镜，X射线光电子能谱）证明，保护层的保护作用CBTA是由于在金属表面上形成了带有Cu（I）的复合化合物的薄层。