Channel flow double electrode study on anodic dissolution of molybdenum in sulfuric acid solution

被引：31
|
作者：
Itagaki, M
Suzuki, T
Watanabe, K
机构：
[1] Science University of Tokyo, Dept. of Industrial Chemistry, Faculty of Science and Technology, Noda-shi, Chiba
来源：
ELECTROCHIMICA ACTA | 1997年 / 42卷 / 07期
关键词：
anodic dissolution; molybdenum; sulfuric acid; channel flow electrode; transpassive dissolution;
D O I：
10.1016/S0013-4686(96)00253-8
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The in situ detection method of dissolved molybdenum ions has been established by a channel flow double electrode. Mo(V)(sol) and Mo(VI)(sol) were detected on the collecting electrode, which was located at the downstream of the Mo working electrode, at 1.0 V and -0.4 V, respectively. Anodic dissolution of Mo in sulfuric acid solution was investigated by using the developed analytical method. Dissolved Mo(V)(sol) was detected in the passive region. In the transpassive region, both Mo(V)(sol) and Mo(VI)(sol) were detected, and these dissolutions were explained by chemical dissolutions from complicated oxides. The above-mentioned results were compared with the experimental results obtained by spectrophotometric determination. Copyright (C) 1996 Elsevier Science Ltd.
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页码：1081 / 1086
页数：6
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