物理化学学报 >> 2002, Vol. 18 >> Issue (02): 152-155.doi: 10.3866/PKU.WHXB20020212

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AMT在青铜电极表面上吸附的SERS研究

魏无际;付海涛;李瑛;朱一帆   

  1. 南京工业大学材料科学与工程学院,南京　210009;中国科学院金属研究所，金属腐蚀与防护国家重点实验室，沈阳　110015
  • 收稿日期:2001-07-23 修回日期:2001-10-11 发布日期:2002-02-15
  • 通讯作者: 朱一帆 E-mail:zhuyf@njut.edu.cn

SERS Study on Adsorption of AMT on Bronze

Wei Wu-Ji;Fu Hai-Tao;Li Ying;Zhu Yi-Fan   

  1. Nanjing University of Technology， Nanjing　210009;State Key Laboratory for Corrosion and Protection, Institute of Metal Research, Chinese Academy of Sciences, Shenyang　110015
  • Received:2001-07-23 Revised:2001-10-11 Published:2002-02-15
  • Contact: Zhu Yi-Fan E-mail:zhuyf@njut.edu.cn

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摘要： 对AMT在青铜上的吸附行为进行激光拉曼电化学研究，通过改变青铜电极的电极电位对在有无Cl－存在条件下各主要拉曼振动峰进行观察.结果表明, AMT垂直吸附在青铜表面，有Cl－存在下， Cl－与AMT分子共吸附在青铜表面上.外加阳极极化电流、加入Cl－将增加AMT在青铜表面上的吸附.

关键词: 吸附, AMT, 青铜, 表面增强拉曼散射光谱（SERS）, Cl-

Abstract: New aspects of molecular interaction in corrosion inhibition are firstly reported in this investigation of 2-amino-5-mercapto-1,3,4-thiadiazole (AMT) on bronze using surface enhanced Raman scattering (SERS). The adsorption on bronze of the corrosion inhibitors 2-amino-5-mercapto-1，3，4-thiadiazole has been characterized in the AMT solution with and without Cl－ using electrochemical techniques and surface enhanced Raman spectroscopy. AMT is adsorbed in a perpendicular position at a given concentration. Cl－ and AMT are strongly coadsorbed on the surface of bronze in the presence of Cl－.

Key words: Adsorption, 2-amino-5-mercapto-1，3，4-thiadiazole（AMT）, Bronze, SERS