Abstract
The major reason for Al_anode's activation is that Ga and Sn deposit on the aluminum surface and form activated points. The Al_Sn and Al_Ga binary alloys can't be activated in alkaline medium. During the dissolution of the Al_Sn_Ga ternary anode, Sn and Ga dissolve into the solution and transform into ions. After the Sn ions deposit on the surface of Al_anode, the Ga ions will deposit on Sn. The higher activation of the polynary alloy anode is caused by much more new activated points composed of Ga_Sn alloy being continually formed. Ga_Sn alloy with low melting point deposited on the surface of Al can implant in the oxide film with single or multi_atoms because of their fluidity, and form active points which can separate oxide film locally. This is the key for activation of Al alloy.
Keywords
Al_anode, Activation mechanism, Activated points
Publication Date
2001-08-28
Online Available Date
2001-08-28
Revised Date
2001-08-28
Received Date
2001-08-28
Recommended Citation
Zhen ya LI, Ling YI, Zhi hui LIU, Lin YANG, Jing xin SU, Yan ying CHEN.
The Activation Mechanism of Al Alloys with Tin and Gallium in Alkaline Electrolytes[J]. Journal of Electrochemistry,
2001
,
7(3): Article 13.
DOI: 10.61558/2993-074X.3261
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol7/iss3/13
Included in
Engineering Science and Materials Commons, Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons
