Low-Temperature Catalytic Oxidation of Sulfide Ions in Aqueous Solutions on a Ni-Oxide System

被引：0
作者：
St. Christoskova
M. Stoyanova
M. Georgieva
机构：
来源：
Reaction Kinetics and Catalysis Letters | 2000年 / 70卷
关键词：
Oxidation of sulfides; kinetics; Ni-oxide system; reaction mechanism;
D O I：
暂无
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学科分类号：
摘要：
Catalytic oxidation of sulfide ions in aqueous solutions by air oxygen has been investigated using a Ni-oxide system as a catalyst. The kinetics and the selectivity of the oxidation process were studied by varying the pH, catalyst amount and reaction temperature. A reduction/oxidation mechanism of the reaction has been supposed comprising interaction between the surface active oxygen of the catalyst and HS− and reoxidizing of the reduced catalyst by the dissolved oxygen. The results obtained show that the Ni-oxide system is a promising catalyst for practical application.
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页码：139 / 145
页数：6
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