| MnO2电极的循环伏安光电化学测量 |
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| 引用本文： | 杨华铨,刘欣,蔡生民,周国定.MnO2电极的循环伏安光电化学测量[J].物理化学学报,1991,7(4):409-412. |
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| 作者姓名： | 杨华铨 刘欣 蔡生民 周国定 |
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| 作者单位： | Department of Chemistry, Peking Univesity, Beijing 100871; Shanghai Institute of Electrio Power |
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| 摘 要： | 用循环伏安法的光电化学现场测量研究了γ-MnO_2在充放电过程中的电化学和光电化学性质, γ-MnO_2本身的光电流为正值, 在阴极还原过程中光电流不断减小, 由正值变为负值。说明γ-MnO_2是n型半导体, 阴极还原过程相当于对γ-MnO_2进行了p型掺杂。
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| 关 键 词： | MnO2 循环伏安法 光电化学 |
| 收稿时间： | 1990-03-17 |
| 修稿时间： | 1990-07-04 |
A PHOTOELECTROCHEMICAL STUDY OF CYCLIC VOLTAMMETRY OF MnO_2 ELECTRODE |
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| Yang Huaquan Liu Xin Cai Shengmin.A PHOTOELECTROCHEMICAL STUDY OF CYCLIC VOLTAMMETRY OF MnO_2 ELECTRODE[J].Acta Physico-Chimica Sinica,1991,7(4):409-412. |
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| Authors: | Yang Huaquan Liu Xin Cai Shengmin |
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| Institution: | Department of Chemistry, Peking Univesity, Beijing 100871; Shanghai Institute of Electrio Power |
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| Abstract: | Electrochemical and photoeletrochemical properties of electrodepositing γ-MnO_2 are studied when it is charged and discharged in 1 mol·L~(-3) KOH using cyclic voltammetry and in-situ photoelectrochemical method. When γ-MnO_2 is reduced,the photocurrent decreases from positive to negative. We concluded that γ-MnO_2 is a n-type semiconductor, but it is p-type doped during the reduction processes. |
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| Keywords: | MnO_2 Cyclic Voltammetry method Photoelectrochemical method |
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