含镓、锡的铝合金在碱性溶液中的阳极行为  

The Electrochemical Behavior of Al Alloys Containing Tin and Gallium in Alkaline Electrolytes

作　　者：李振亚[1] 秦学[1] 余远彬 陈艳英[1] 易玲[1] 杨林[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《物理化学学报》1999年第4期381-384,共4页Acta Physico-Chimica Sinica

摘　　要：The major reason of Al anode activation is that Ga can plate out on the aluminum surface and form activated points. The Al-Sn, Al - Ga binary alloys can’t be activat6d in alkaline medium. During the dissolution of the Al - Sn - Ga ternary anode, Sn and Ga dissolove solution aions as ions. After Sn ions deposit on the surface of Al anode, Ga ions will underpotentially deposit on Sn. The higher activation of the polycomponent alloy anode is caused by much more new activated points being continually formed. The activation mechanism for the polycomponent Al-alloy anode in alkaline medium is abided by the" di ssolution-deposition".The major reason of Al anode activation is that Ga can plate out on the aluminum surface and form activated points. The Al-Sn, Al - Ga binary alloys can't be activat6d in alkaline medium. During the dissolution of the Al - Sn - Ga ternary anode, Sn and Ga dissolove solution aions as ions. After Sn ions deposit on the surface of Al anode, Ga ions will underpotentially deposit on Sn. The higher activation of the polycomponent alloy anode is caused by much more new activated points being continually formed. The activation mechanism for the polycomponent Al-alloy anode in alkaline medium is abided by the' di ssolution-deposition'.

关 键 词：铝阳极 活化 欠电位沉积 铝合金 阳极行为 镓 锡 

分 类 号：O646.54[理学—物理化学]