电沉积Al/Pb-Ag阳极在硫酸中的电化学性能  

Electrochemical Performances of Electrodeposited Al /Pb-Ag Anode in Sulfuric Acid

作　　者：王帅[1] 陈步明[1,2] 郭忠诚[1,2] 周松兵[1] 

机构地区：[1]昆明理工大学冶金与能源工程学院,昆明650093 [2]昆明理工恒达科技有限公司,昆明650106

出　　处：《应用化学》2014年第9期1101-1106,共6页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金项目(51004056);云南省应用基础研究基金项目(2010ZC052)~~

摘　　要：采用阳极极化曲线、循环伏安法、交流阻抗法、XRD和SEM等技术手段研究了银含量对铝基铅银合金电化学性能的影响。结果表明,在硫酸电解液中,随着银含量的增加,合金的耐腐蚀性逐渐提高,腐蚀膜的阻抗和析氧过电位逐渐降低。Lead-silver anodes with different contents of silver were prepared on the surface of Al substrates by electrodeposition. The impact of the silver concentration on the electrochemical properties of electrodeposited lead-silver alloys was investigated by the anodic polarization curves, cyclic voltammetry, EIS, XRD and SEM. The results show that the increase of silver contents to the lead-silver anodes can enhance the corrosion resistance and decrease the impedance of the corrosion film and oxygen overpotential.

关 键 词：电沉积铅银合金 电化学 阳极 耐腐蚀性能 

分 类 号：O646.5[理学—物理化学] TQ153.2[理学—化学]