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Citation: Yang Hua-Quan, Liu Xin, Cai Sheng-Min, Zhou Guo-Ding. A Photoelectrochemical Study of Cyclic Voltammetry of MnO₂ Electrode[J]. Acta Physico-Chimica Sinica, ;1991, 7(04): 409-412. doi: 10.3866/PKU.WHXB19910407 shu

A Photoelectrochemical Study of Cyclic Voltammetry of MnO₂ Electrode

1.
Department of Chemistry, Peking Univesity, Beijing 100871; Shanghai Institute of Electrio Power

Received Date: 17 March 1990
Available Online: 15 August 1991

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.
- MnO₂; Cyclie Voltammetry method; Photoelectrochemical method
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A Photoelectrochemical Study of Cyclic Voltammetry of MnO2 Electrode

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A Photoelectrochemical Study of Cyclic Voltammetry of MnO₂ Electrode