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铜表面二硫代氨基甲酸改性葡萄糖自组装膜的缓蚀作用

张沈阳,廖强强*,徐少迪,杨冬,赵璐璐,葛红花   

  1. (上海电力学院，上海热交换系统节能工程技术研究中心 上海 200090)
  • 收稿日期:2012-07-12 修回日期:2012-09-25 出版日期:2013-05-10 发布日期:2013-05-10
  • 通讯作者: 廖强强，教授; Tel/Fax:021-65700719; E-mail:liaoqq1971@yahoo.com.cn; 研究方向：金属腐蚀与防护
  • 基金资助:
    上海市科委项目（11DZ2210500,12DZ2280300）；上海市联盟计划（Z-2011-049）

Inhibitive Effect of the Self-assembled Monolayers of Dithiocarbamate Modified Glucose on Copper Surface

ZHANG Shenyang, LIAO Qiangqiang*, XU Shaodi, YANG Dong, ZHAO Lulu, GE Honghua   

  1. (Shanghai Engineering Research Center of Energy-Saving in Heat Exchange Systems,
    Shanghai University of Electric Power,Shanghai 200090,China)
  • Received:2012-07-12 Revised:2012-09-25 Published:2013-05-10 Online:2013-05-10

PDF

1463

被引次数

3 | 1

摘要： 合成了一种环境友好型的缓蚀剂——二硫代氨基甲酸改性葡萄糖（DTCG）。 采用该缓蚀剂在铜表面制备了自组装膜，并运用电化学阻抗谱、极化曲线方法研究了该膜在3%NaCl溶液中对铜的缓蚀性能。 研究结果表明，DTCG自组装膜对铜有良好的缓蚀效果，在自组装时间为4 h、自组装浓度为120 mg/L的缓蚀效率接近于97%。 量子化学计算结果也证明了DTCG具有优异的缓蚀性能。

关键词: 二硫代氨基甲酸改性葡萄糖, 自组装膜, 铜, 电化学方法, 量子化学

Abstract: Dithiocarbamate modified glucose(DTCG), an environment-friendly corrosion inhibitor, has been synthesized. Corrosion inhibition effect of DTCG self-assembled monolayers(SAMs) formed on copper surface was measured in 3%NaCl solution using electrochemical impedance and polarization curve methods. The results indicate that DTCG SAM has good corrosion inhibition effect for copper and its inhibition efficiency can be close to 97% after self-assembling in 120 mg/L DTCG for 4 h. Quantum chemical calculations also show that DTCG possesses excellent anticorrosion performance.

Key words: dithiocarbamate modified glucose, Self-assembled monolayers, Copper, electrochemical methods, quantum chemistry

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