The physicochemical and electrochemical behavior of lithium oxide in the equimolar NaCl-KCl melt

被引：6

作者：

Barbin, NM ^{[1
]}

Nekrasov, VN ^{[1
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst High Temp Electrochem, Ekaterinburg 620219, Russia

来源：

ELECTROCHIMICA ACTA | 1999年 / 44卷 / 25期

关键词：

NaCl-KCl melt; lithium oxide; anodic process; glassy-carbon electrode;

D O I：

10.1016/S0013-4686(99)00179-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Solubility of lithium oxide in the equimolar NaCl-KCl melt was determined over the temperature interval from 973 to 1123 K. The formation-dissociation reaction of lithium carbonate in this electrolyte was analyzed. Thermodynamic functions characterizing these processes were calculated. The activity coefficients in solutions of lithium oxide and lithium carbonate Evert estimated. The anodic process at a glassy carbon electrode in the said oxide-chloride electrolyte was studied using the linear voltammetry method. The electrode process was found to proceed in stages and irreversibly. Electrochemical and diffusion parameters characterizing the electrode process were evaluated. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：4479 / 4488

页数：10

共 22 条

[1]

BARBIN NM, 1987, RASPLAVY, V2, P108

[2]

BARBIN NM, 1990, RASPLAVY N, V2, P117

[3]

BARBIN NM, 1994, RASPLAVY, V4, P48

[4]

Brown E. R., 1971, PHYSICAL METHODS 2A, P423

[5]

Cherginets VL, 1997, USP KHIM+, V66, P661

[6] DISSOCIATION OF CARBONATE IN MOLTEN NACL-KCL [J].

COMBES, R ;

FEYS, R ;

TREMILLON, B .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1977, 83 (02) :383-385

[7]

Glushko VP., 1981, THERMODYNAMIC PROPER

[8]

Haupin W., 1981, COMPR TREAT, V2, P301

[9] VOLTAMMETRIC STUDY OF ANODIC ADSORPTION PHENOMENA ON GRAPHITE IN CRYOLITE-ALUMINA MELTS [J].

JAREK, S ;

THONSTAD, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1987, 134 (04) :856-859

[10]

KANEKO Y, 1974, DENKY KAGAKY, V42, P304

← 1 2 3 →