有机硼酸基团对铝缓蚀作用的研究
Study on the Corrosion Inhibition of 4-Mercaptophenyl-Boronic Acid for Aluminum
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摘要: 采用自组装技术、交流阻抗法研究了对巯基苯硼酸对铝在3.5， NaCl溶液中的腐蚀行为.实验表明,随着对巯基苯硼酸浓度的变化和组装时间的不同缓蚀效率有所不同.当对巯基苯硼酸浓度为3.2×10~(-3) mol/L,组装时间为12 h时腐蚀电流最小,缓蚀效率最高,达98，以上.
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关键词:
- 对巯基苯硼酸,铝电极,交流阻抗,缓蚀剂
Abstract: The corrosion behavior of aluminum with 4-mercaptophenyl-boronic acid in a 3.5% NaCl solution was studied, using the self-assembly technology and EIS (electrochemical impedance spectroscopy).The efficiency of corrosion inhibition was found to vary with the concentration of 4-mercaptophenyl-boronic acid and the assembly time. A 4-mercaptophenyl-boronic acid concentration of 3.2×10~(-3) mol/L in combination with an assembly time of 12h was the optimum condition, under which the corrosion current was the smallest and efficiency was the highest (98%). -
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