现场椭圆偏振方法对铜电极腐蚀及缓蚀的研究

应用现场反射式椭圆偏振技术和循环伏安法研究氯离子以及苯并三氮唑对铜电极腐蚀性能的影响，探索铜电极的腐蚀及缓蚀机理，为铜材料在含有氯离子的腐蚀介质（如一次锌锰干电池）中的使用和保护提供依据。研究结果表明：电解液中氯离子的存在将明显加速铜电极的腐蚀，在电解液中添加苯并三氮唑能够抑制铜的腐蚀，即使电解液中没有氯离子存在，苯并三氮唑也能够阻止铜的氧化；与电化学研究方法比较，椭圆偏振测量技术对于检测表面层的微小变化有其独特的优点，在研究抑制铜腐蚀时能弥补电化学研究方法灵敏度不足的缺陷；文中还提出了苯并三氮唑和氯离子参与形成铜表面保护膜层的模型，并结合该模型对铜腐蚀性能和缓蚀机制进行了解释。

Study on corrosion and inhibition of copper electrode with in situ ellipsometry

To provide basis for use and protection of coppper,the effect of chloride and benzotriazole on corrosion of copper has been studied with ellipsometry and cyclic voltammetry,and mechanisms of the corrosion and inhibition of copper have also been discussed.Results indicate that corrosion of copper electrode can be speeded up when chloride exists,and the corrosion can be hindered when benzotriazole exists.Moreover,reactions between coppper and oxygen can also be restricted by benzotriazole even though chloride dose not exist.Ellipsometry has some special advantages comparing with electrochemical method for study on corrosion system.A model on surface film of copper with chloride and benzotriazole has been suggested.