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Abstract

The mechanism of TiO2 electrode process has been investigated by cyclic voltammetry and chronopotentiometry on the tungsten filament in molten Na3AlF6-AlF3 salts at 990 ℃.The experimental results showed that electrochemical reduction of Ti(Ⅳ) precede were two steps,firstly Ti(Ⅳ) was reduced to Ti(Ⅱ),then Ti(Ⅱ) was reduced to Ti,namely: Ti(Ⅳ)→Ti(Ⅱ)→Ti.

Keywords

Na3AlF6-AlF3, molten salts, titamium ions, cyclic voltammetry

Publication Date

2008-02-28

Online Available Date

2008-02-28

Revised Date

2008-02-28

Received Date

2008-02-28

References

[1]Liu Mei-feng(刘美凤),Guo Zhan-cheng(郭占成).New development of technologies for producing titaniummetal[J].The Chinese Journal of Nonferrous Metals,2003,13(5):1238-1245.
[2]Li Dong-ying(李东英).Titanium industry in China[J].Nonferrous Smelting,2000,29(3):1-6.
[3]Yang qi-qin(杨绮琴),Duan Shu-zhen(段淑贞).Thenew developments of molten salt electrochemistry[J].Electrochemistry(in Chinese),2001,7(1):10-17.
[4]Haarberg G M,Rolland W,Stertern A.Electrodeposi-tion of titanium from chloride melts[J].Appl Electro-chem,1993,23(3):217-224.
[5]Chassaing E,Basile F,Lorthioir G.Study of Ti(Ⅲ)so-lutions in various molten alkali chlorides.Ⅰ.chemicaland electrochemical investigation[J].Appl Electro-chem,1981,11(2):187-191.
[6]Tie Jun(铁军).A study of aluminium electrodepositionand redissolution loss[J].Corrosion Science and Pro-tection Technology,1994,6(3):208.
[7]Hussey C L.Room temperature molten salts:A brightfuture of applications in clean technology[J].DenkiKagaku,1999,67(6):527.
[8]Tian Zhao-wu(田昭武).Electrochemical methods[M].Beijing:Science&Technology Press,1984.60-65.

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