Electrodeposition of zinc from high acid zinc chloride solutions

被引：60

作者：

Baik, DS

Fray, DJ

机构：

[1] Sang Won EnC Ltd, Seoul, South Korea

[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2001年 / 31卷 / 10期

关键词：

gelatin; membrane; zinc chloride; zinc electrodeposition;

D O I：

10.1023/A:1012290132379

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrowinning of zinc from zinc chloride solutions, acidified by HCl, was conducted in a cation exchange membrane cell. The current efficiency was correlated with the deposit morphology. The deposits having lesser surface defects, which act as active sites for hydrogen adsorption, exhibited higher current efficiency. The (1 1 0) preferred texture was observed on the deposits grown in high acid solution containing gelatin. High temperature (40 degreesC) and high current density decreased the current efficiency and the preferred texture.

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页码：1141 / 1147

页数：7

相关论文

共 16 条

[1] EFFECTS OF SAMPLE ORIENTATION ON THE CORROSION OF ZINC IN AMMONIUM-SULFATE AND SODIUM-HYDROXIDE SOLUTIONS [J].

ABAYARATHNA, D ;

HALE, EB ;

OKEEFE, TJ ;

WANG, YM ;

RADOVIC, D .

CORROSION SCIENCE, 1991, 32 (07) :755-768

[2] INHIBITED ZINC ELECTRODEPOSITION - ELECTRODE-KINETICS AND DEPOSIT MORPHOLOGY [J].

BRESSAN, J ;

WIART, R .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1979, 9 (01) :43-53

[3] ZINC ELECTROWINNING IN ACIDIC SULFATE ELECTROLYTES - IMPEDANCE ANALYSIS AND MODELING OF THE INFLUENCE ON NICKEL IMPURITIES [J].

CACHET, C ;

WIART, R .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1994, 141 (01) :131-140

[4] ZINC DEPOSITION AND PASSIVATED HYDROGEN EVOLUTION IN HIGHLY ACIDIC SULFATE ELECTROLYTES - DEPASSIVATION BY NICKEL IMPURITIES [J].

CACHET, C ;

WIART, R .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1990, 20 (06) :1009-1014

[5] Aqueous processing and its role in the production of inorganic materials and environmental protection [J].

Demopoulos, GP .

CANADIAN METALLURGICAL QUARTERLY, 1998, 37 (01) :1-18

[6] PITTING CORROSION OF PASSIVATED ZINC MONOCRYSTALS [J].

GUO, R ;

WEINBERG, F ;

TROMANS, D .

CORROSION, 1995, 51 (05) :356-366

[7] Mechanism of zinc electrodeposition in acidic sulfate electrolytes containing Pb2+ ions [J].

Ichino, R ;

Cachet, C ;

Wiart, R .

ELECTROCHIMICA ACTA, 1996, 41 (7-8) :1031-1039

[8] ION-TRANSPORT IN A 2 MEMBRANE ELECTROWINNING CELL FOR THE PRODUCTION OF HYDROCHLORIC-ACID [J].

LIAO, L ;

VANSANDWIJK, A ;

VANWEERT, G ;

DEWIT, JHW .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1995, 25 (11) :1009-1016

[9] EVALUATION OF ORGANIC ADDITIVES AS LEVELING AGENTS FOR ZINC ELECTROWINNING FROM CHLORIDE ELECTROLYTES [J].

MACKINNON, DJ ;

BRANNEN, JM .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1982, 12 (01) :21-31

[10] ZINC DEPOSIT STRUCTURES OBTAINED FROM HIGH-PURITY SYNTHETIC AND INDUSTRIAL ACID SULFATE ELECTROLYTES WITH AND WITHOUT ANTIMONY AND GLUE ADDITIONS [J].

MACKINNON, DJ ;

BRANNEN, JM .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 1977, 7 (05) :451-459