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Citation: XIA Xi, GONG Liang-Yu, LI Juan. Cyclic Voltammetric Behaviour of Nanosized α-PbO Doped MnO₂[J]. Chinese Journal of Applied Chemistry, ;2001, 18(12): 953-957. shu

Cyclic Voltammetric Behaviour of Nanosized α-PbO Doped MnO₂

1.
Institute of Applied Chemistry, Xinjiang University, Urumqi 830046

Received Date: 29 March 2001
Available Online: 30 August 2001
Fund Project: 国家自然科学基金资助项目(29963002) (29963002)

The electrochemical behavior of nanosized α-PbO doped MnO₂ electrodes have been investigated by means of cyclic voltammetry. The results indicated that the nanosized α-PbO samples have better electrochemical activity than the conventional α-PbO samples. The charge-discharge mechanism of the modified MnO₂ changed because of the formation of stable complexes from Pb(X)(X=0,Ⅱ) with Mn(Y)(Y=Ⅳ,Ⅲ,Ⅱ) atoms. These complexes could be cooxided and coreduced, and thus restrained the formation of poorly electrochemical active Mn₃O₄, as a results the reversibility of MnO₂ electrode were improved. The discharge mechanism of MnO₂ doped with nanosized α-PbO sample was similar to that of doped with conventional α-PbO sample. But the nanosized α-PbO have a better electrochemical activity than the conventional α-PbO doped MnO₂ electrodes
- α-PbO,
- nanosized powder,
- cyclic voltammetry,
- electrochemical activity,
- α-PbO doped MnO₂ electrodes
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Cyclic Voltammetric Behaviour of Nanosized α-PbO Doped MnO2

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Cyclic Voltammetric Behaviour of Nanosized α-PbO Doped MnO₂