Study on corrosion mechanism of copper and inhibitive properties of Domperidone on copper corrosion

• 作 者: SisiZheng[1]BinXiang[2]CuiWang;YangZhou;YuqingChai;
• 机 构: College of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400044,China
• 出 处: 2016中国国际表面工程论坛暨重庆第十三届表面工程技术论坛
• 发表日期: 2016年期

　　In this paper,the corrosion behavior of copper in HCl solution was investigated by electrochemical measurements.Results show that the primary corrosion product is Cu2O in 0.001-0.01 M HCl solution,however,Cu2+ and a small amount of CuCl in 0.1-1 M HCl solution.Domperidone was tested as a corrosion inhibitor for copper in different concentration of HCl solution using potentiodynamic polarization and electrochemical impedance spectroscopy(EIS).The experimental results revealed that domperidone was a cathodic inhibitor in HCl solution,with a maximum achievable inhibition efficiency of 98.5% in 0.01 M HCl tested by EIS.