| 硫酸溶液中Ag+离子对Mn2+离子阳极氧化的催化作用 |
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| 引用本文： | 李伟善,江琳才,黄仲涛.硫酸溶液中Ag+离子对Mn2+离子阳极氧化的催化作用[J].物理化学学报,1996,12(12):1119-1123. |
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| 作者姓名： | 李伟善 江琳才 黄仲涛 |
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| 作者单位： | Department of Chemistry,South China Normal University,Guangzhou 510631,Department of Chemical Engineering,South China University of Technology,Guangzhou 510641 |
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| 摘 要： |
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| 关 键 词： | 锰离子 阳极氧化 银离子 催化 硫酸溶液 |
| 收稿时间： | 1996-04-18 |
| 修稿时间： | 1996-09-06 |
Anodic Oxidation of Mn~(2 ) Ion in H_2SO_4 Solutions Catalyzed by Ag~ Ion |
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| Li Wei-Shan,Jiang Lin-Cai,Huang Zhong-Tao.Anodic Oxidation of Mn~(2 ) Ion in H_2SO_4 Solutions Catalyzed by Ag~ Ion[J].Acta Physico-Chimica Sinica,1996,12(12):1119-1123. |
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| Authors: | Li Wei-Shan Jiang Lin-Cai Huang Zhong-Tao |
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| Institution: | Department of Chemistry,South China Normal University,Guangzhou 510631|Department of Chemical Engineering,South China University of Technology,Guangzhou 510641 |
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| Abstract: | Anodic oxidation of Mn2+ and Ag+ ions and anodic oxidation of Mn2+ ion on platinum electrode in H2SO4 solution catalyzed by Ag+ ion are studied by using RRDE and triangle voltammetry techniques. Mn2+ ion is oxidized on the anode surface with adsorped OH group to form a certain compound containing Mn3+, which causes Mn2+difficult to be oxidized directly on anode. Near the potential of oxygen evolution from H2O decomposition, Ag+ ion is oxidized to form Ag2+ ion. This is the main reaction on anode because of its reversability. At higher potential silver oxide is formed on the anode. The oxide catalyzes the decomposition of H2O strongly. The anodic oxidation of Mn2+ion catalyzed by Ag+ takes place and Ag2+ ion and silver oxide are no longer the product of Ag+ anodic oxidation when Mn2+ exists in solution at the potential for Ag+ anodic oxidation. It is confirmed that the catalysis reaction is homogeneous and very fast. |
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| Keywords: | Manganous ion Anodic oxidation Silver ion Catalysis Sulphuric acid solution |
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