INFLUENCE OF SUPPORTING ELECTROLYTES ON PHOTOELECTROCHEMICAL STABILITY OF LEAD-OXIDE IN K4FE(CN)6 SOLUTION

被引：0
|
作者：
REDDY, GS [1 ]
SHARON, M [1 ]
机构：
[1] INDIAN INST TECHNOL,DEPT CHEM,BOMBAY 400076,INDIA
来源：
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 1995年 / 34卷 / 01期
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中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Photoelectrochemical (PEC) stability of lead oxide (PbO(n)) in Fe(CN)6(-4) solution with alkali halides at pH 9.2 has been studied. Among the alkali halides studied, KI (0.1 M) enhances the stability of PbO(n) by 80%. This stability enhances further if solution is made from a saturated solution of PbO. A model is developed to explain the role of KI in suppressing the photocorrosion of PbO(n). A special arrangement is designed for illuminating disc/ring electrode assembly of rotating rind disc electrode (RRDE) as well for electrode of a PEC cell to minimize the loss of light intensity due to its absorption by coloured solution. Alkali halides MX (M = Li, Na, K and Cs; X = Cl, Br, and I), have been used for this study.
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页码：22 / 26
页数：5
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