Electric current induced flow and electrocapillary deformation of liquid Wood alloy in NaOH aqueous solution

Authors

Guo-di ZHANG, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology 730050 ,Lanzhou, China;
Qiao-li LIN, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology 730050 ,Lanzhou, China;Follow
Jian-hong CHENG, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology 730050 ,Lanzhou, China;
Rui CAO, State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metal, Lanzhou University of Technology 730050 ,Lanzhou, China;

Corresponding Author

Qiao-li LIN(lqllinqiaoli@163.com)

Abstract

The phenomena of the electric current induced flow and electrocapillary deformation for a liquid Wood alloy in a NaOH electrolyte were studied. Electrocapillary behaviors for the liquid Wood alloy in NaOH electrolytes by applying external low voltages were investigated. The electrode reaction (redox reaction) induced the formation or removing removal of an oxide film, and further caused the drop deformation by decreasing or increasing an interfacial tension. The same polar charge in the electric double layer would also decrease the interfacial tension. In order to maintain the stability of system, the contact area of the interface would be expanded, and which induced induces the drop deformation macroscopically. When the liquid metal was charged by the chemical reaction in the solution, the electric field force is became an effective way to drive its movement in the electrolyte.

Graphical Abstract

Keywords

Capillarity, Spreading dynamics, Surface tension

DOI Link

https://doi.org/10.13208/j.electrochem.160411

Publication Date

2017-08-25

Online Available Date

2016-11-15

Revised Date

2016-11-10

Received Date

2016-04-11

Recommended Citation

Guo-di ZHANG, Qiao-li LIN, Jian-hong CHENG, Rui CAO. Electric current induced flow and electrocapillary deformation of liquid Wood alloy in NaOH aqueous solution[J]. Journal of Electrochemistry, 2017 , 23(4): 429-434.
DOI: 10.13208/j.electrochem.160411
Available at: https://jelectrochem.xmu.edu.cn/journal/vol23/iss4/7