Kinetics of the reaction at the silver sulfide-liquid sulfur interface.
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概要
- 論文の詳細を見る
The reaction rate, <I>v</I>, at the Ag<SUB>2</SUB>S/S(1) interface was determined as a function of the silver activity <I>a</I><SUB>Ag</SUB> in Ag<SUB>2</SUB>S utilizing a solid-state electrochemical cell, Ag/AgI/Ag<SUB>2</SUB>S/Pt. The rate equation was found to be expressed by <I>v</I>=<I>k</I>(<I>a</I><SUB>Ag</SUB>)<SUP>2</SUP>–<I>k</I>′ On the basis of the theory by Kobayashi and Wagner, the rate-controlling step of the Ag<SUB>2</SUB>S/S(1) interface reaction is concluded to be S<SUP>−</SUP>(ad)+e→S<SUP>2−</SUP>(ad). The overall reaction rate of silver sulfidization by liquid sulfur can be well explained by the mixed control of a three-step reaction; the Ag<SUB>2</SUB>S/S(l) interface reaction, the diffusion of silver ions in Ag<SUB>2</SUB>S, and the Ag/Ag<SUB>2</SUB>S interface reaction.
- 公益社団法人 日本化学会の論文
著者
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Fueki Kazuo
Department Of Industrial Chemisrty Faculty Of Science And Technology Science University Of Tokyo
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Mizusaki Junichiro
Department of Industrial Chemistry, Faculty of Engineering, The University of Tokyo
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Sasaki Jun
Department Of Applied Biological Science Tokyo University Of Agriculture And Technology
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Sasaki Jun
Department of Industrial Chemistry, Faculty of Engineering, The University of Tokyo
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