表面增强拉曼光谱用于不锈钢缓蚀机理的研究  

STUDY ON INHIBITION MECHNISM ON STAINLESS STEEL IN HYDROCHLORIC ACID SOLUTIONS BY MEANS OF SURFACE-ENHANCED RAMAN SPECTROSCOPY

作　　者：查英华[1] 魏宝明[1] 田中群[1] 林昌健[1] 

机构地区：[1]南京化工学院,厦门大学

出　　处：《腐蚀科学与防护技术》1994年第1期58-62,共5页Corrosion Science and Protection Technology

基　　金：厦门大学固体表面物理化学重点实验室资助

摘　　要：本文运用表面增强拉曼散射光谱（ＳＥＲＳ）技术，研究在０．５％ＨＣｌ体系中缓蚀剂在１８—８不锈钢表面的吸附模式。这些ＳＥＲＳ谱图是籍在不锈钢表面电沉积不连续Ａｇ颗粒得到的。缓蚀剂ＢＭＡＴ在电极表面的吸附是通过电极表面与缓蚀剂中的Ｎ原子形成化学吸附，以及苯并咪唑环的共轭大π键的化学吸附，缓蚀剂斜卧于电极表面。ＢＭＡＴ的烯两基起到空间阻碍的作用。The adsorption of some nitrogen and sulfur compounds such as BMAT on 18-8 stainless steel(SS) in 0.5% HCl were investigated by surface enhanced Raman scattering(SERS)spectroscopy.The SERS spectra of BMAT adsorbed on the SS were measured using a SS electrode with discontinuous micro-islands of silver prepared by electrodeposition.The inhibitor,BMAT were chemisorbed on the SS surface through the N atom.Under the influence of π-electron interaction, BMAT could be adsorbed on SS surface at an angle.Allyl of BMAT played a role in the inhibition effect by the steric hindrances.

关 键 词：拉曼光谱 不锈钢 电沉积 缓蚀保护 

分 类 号：TG178[金属学及工艺—金属表面处理]