AMT在青铜电极表面上吸附的SERS研究  

SERS Study on Adsorption of AMT on Bronze

作　　者：魏无际[1] 付海涛[1] 李瑛[2] 朱一帆[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]中国科学院金属研究所

出　　处：《物理化学学报》2002年第2期152-155,共4页Acta Physico-Chimica Sinica

基　　金：江苏省自然科学基金(BK97122);金属腐蚀与防护国家重点实验室基金(1999-05)资助项目~~

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.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-.

关 键 词：吸附 AMT 青铜电极 氯离子 缓蚀剂 筛选 青铜 表面增强拉曼散射光谱 SERS 金属 缓蚀机理 

分 类 号：O646.6[理学—物理化学]