Study of the Reduction Mechanism of MnO2 by Rotating Ring-Disk Electrode

被引:1
|
作者
Tian Jianhua [1 ]
Gu Linying [1 ]
机构
[1] Tianjin Univ, Dept Appl Chem, Tianjin 300072, Peoples R China
关键词
MnO2; Rotating ring-disk electrode; Cathodic reduction of MnO2;
D O I
10.3866/PKU.WHXB19960512
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The cathodic reduction mechanism of MnO2 electrode is studied by means of the rotating ring-disk electrode The mass tran sport process in the solution plays an important role in the reduction process of MnO2 electrode. The relation between I-n(-1) and omega(-1/2) is deduced as a diagnostic criterion of the reduction mechanism. The dissolution precipitation and the electron proton mechanism occur simultaneously but the relative contributions are quite different in various pH value solutions.
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页码:446 / 450
页数:5
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