Cathode Process in the KF-AlF3-Al2O3 Melts

被引：15

作者：

Nikolaev, A. Yu ^{[1
,2
]}

Suzdaltsev, A., V ^{[1
]}

Zaikov, Yu P. ^{[1
,2
]}

机构：

[1] UB RAS, Inst High Temp Electrochem, Ekaterinburg, Russia

[2] Ural Fed Univ, Ekaterinburg, Russia

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2019年 / 166卷 / 15期

关键词：

ALUMINUM ELECTROLYSIS; ANODES; REDUCTION; BEHAVIOR; ALLOYS; SODIUM;

D O I：

10.1149/2.0521915jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Kinetics of the cathode process in the KF-AlF3 and KF-AlF3-Al2O3 melts has been studied by means of the steady-state polarization and voltammetry techniques. The kinetic parameters of the aluminum electrodeposition in dependence on such factors as cathode material, process temperature, alumina concentration in the melt, etc. were determined. Based on the experiment data analysis, a mechanism of the cathode process in the KF-AlF3-Al2O3 melts was proposed. The operating parameters were defined and electrolysis was carried out. (C) 2019 The Electrochemical Society.

引用

页码：D784 / D791

页数：8

共 47 条

[1] Salts purification and voltammetric study of the electroreduction of U(IV) to U(III) in molten LiF-ThF4 [J].

Afonichkin, V. ;

Bovet, A. ;

Shishkin, V. .

JOURNAL OF NUCLEAR MATERIALS, 2011, 419 (1-3) :347-352

[2]

Baraboshkin A.N., 1976, ELECTROCRYSTALLIZATO

[3]

Bard AJ, 2001, MG ELEC CH, P1

[4] Calorimetric investigations of some phases in the system sodium fluoride-aluminium fluoride [J].

Bruno, M ;

Herstad, O ;

Holm, JL .

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 1999, 56 (01) :51-57

[5]

Clelland C. H., 2013, ESSENTIAL READINGS L, V4, P903

[6]

Danielik V, 2005, CHEM PAP, V59, P81

[7]

Dedyukhin A. E., 2012, MOLTEN SALTS IONIC L, V75

[8]

DWORKIN AS, 1961, DISCUSS FARADAY SOC, P188

[9] Cathodic overvoltage and the contents of sodium and lithium in molten aluminium during electrolysis of cryolite-based melts [J].

Fellner, P ;

Híves, J ;

Korenko, M ;

Thonstad, J .

ELECTROCHIMICA ACTA, 2001, 46 (15) :2379-2384

[10] Synthesis of Al-Zr Master Alloys via the Electrolysis of KF-NaF-AlF3-ZrO2 Melts [J].

Filatov, A. A. ;

Pershin, P. S. ;

Suzdaltsev, A. V. ;

Nikolaev, A. Yu. ;

Zaikov, Yu. P. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2018, 165 (02) :E28-E34

← 1 2 3 4 5 →