Regeneration of hexavalent chromium using a Bi-doped PbO2 anode

被引：18

作者：

Mondal, K

Mandich, NV

Lalvani, SB ^{[1
]}

机构：

[1] So Illinois Univ, Dept Mech Engn & Energy Proc, Carbondale, IL 62901 USA

[2] HBM Electrochem & Engn Co, Lansing, IL USA

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 2001年 / 31卷 / 02期

关键词：

ceramic membrane; chromium; electromigration; electrooxidation; lead anode;

D O I：

10.1023/A:1004107117531

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The rate of hexavalent chromium regeneration from trivalent chromium, present as an impurity in a chromium plating solution at the Bi-doped PbO2 anode, is found to be approximately four times greater than the corresponding rate observed for a PbO2 coated lead (anodized lead) anode. A mathematical model that takes into account species electromigration and associated mass transfer effects was developed and tested. Dynamic concentration data for various chromium species were used along with the mathematical model to evaluate the various rate parameters.

引用

页码：165 / 173

页数：9

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