稀土对硫酸盐体系电沉积Zn-Fe合金阴极极化的影响  

Influence of Rare Earth on the Cathodic Polarization of Electrodepositing Zn-Fe Alloy Coatings in Sulfate System

作　　者：陈阵[1] 张英杰[1] 范云鹰[1] 章江洪[1] 

机构地区：[1]昆明理工大学理学院,云南昆明650093

出　　处：《表面技术》2005年第2期63-65,共3页Surface Technology

基　　金：云南省中青年学术技术带头人后备人才资助项目(2000YP12)

摘　　要：　为了深入地探讨Zn Fe合金镀层的电沉积机理,实验在了三电极体系下,采用动电位法测定硫酸盐体系电沉积Zn Fe合金镀层的阴极极化曲线,探讨了该合金镀层的电沉积机理,以及镀液成分和稀土盐的加入对电沉积阴极极化的影响。通过实验发现,Zn Fe合金镀层的沉积属于异常共沉积,结果表明镀液中加入稀土盐Ce2(SO4)3后,对Zn Fe合金镀层电沉积的阴极极化行为有较大影响。In order to study the mechanism of electrodepositing Zn-Fe alloy coatings,the curve of cathodic polarization of electrodepositing Zn-Fe alloy coatings in sulfate system is determined by changing potential in the system of three electrodes, the mechanism of electrodepositing Zn-Fe coatings in sulfate system , and the influence of composing of electro-solution on the cathodic polarization are studied. The results show that the alloy coatings' codeposition belongs to abnormal codeposition, and Ce_2(SO_4)_3 affects the cathodic polarization of electrodepositing Zn-Fe alloy coatings greatly.

关 键 词：异常共沉积 电沉积 阴极极化 稀土 锌一铁合金 添加剂 

分 类 号：TQ153.2[化学工程—电化学工业]