GROWTH OF LEAD DIOXIDE ON A GOLD ELECTRODE IN THE PRESENCE OF FOREIGN IONS

被引：51

作者：

YEO, IH ^{[1
]}

LEE, YS ^{[1
]}

JOHNSON, DC ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011

来源：

ELECTROCHIMICA ACTA | 1992年 / 37卷 / 10期

关键词：

LEAD DIOXIDE; INDUCTION TIME; ELECTRODEPOSITION;

D O I：

10.1016/0013-4686(92)85085-Y

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effects of added cations and anions on the nucleation and growth of lead dioxide were studied at a gold rotating disc electrode. The accumulation of electrodeposited lead dioxide in the presence of a high concentration of As(III) does not proceed because the chemical stripping rate of lead dioxide by As(III) is greater than its deposition rate. Among anions, sulfate and nitrate greatly enhance the rate of deposition of lead dioxide whereas phosphate decreases the rate of deposition. It is shown that the growth of PbO2 on the gold substrate is not a uniform process, but proceeds by preferential growth on specific sites on the surface of the substrate.

引用

页码：1811 / 1815

页数：5

共 19 条

[1] OXYGEN-ADSORPTION ON PLATINUM AND PLATINUM METALS .1. INVESTIGATION OF THE ADSORPTION MECHANISM BY THE POTENTIODYNAMIC METHOD [J].