引用本文:
姚海军, 刘献明, 张校刚, 夏熙. 纳米PbTiO3改性MnO2电极[J]. 应用化学,
2003, 20(4): 336-340.
Citation: YAO Hai-Jun, LIU Xian-Ming, ZHANG Xiao-Gang, XIA Xi. Nanophase PbTiO3 Modified MnO2 Electrodes[J]. Chinese Journal of Applied Chemistry, 2003, 20(4): 336-340.
Citation: YAO Hai-Jun, LIU Xian-Ming, ZHANG Xiao-Gang, XIA Xi. Nanophase PbTiO3 Modified MnO2 Electrodes[J]. Chinese Journal of Applied Chemistry, 2003, 20(4): 336-340.
纳米PbTiO3改性MnO2电极
English
Nanophase PbTiO3 Modified MnO2 Electrodes
Abstract:
Nanosized PbTiO3 powder was prepared by a sol-gel method and characterized by XRD,TEM and CV techniques.PbTiO3 modified MnO2 electrodes were fabricated and their electrochemical behavior were studied by means of galvonostatic charge-discharge and CV experiments.The results indicated that the nano-sized PbTiO3 forms a series of complex oxides with MnO2 of different valency and prevents the formation of Mn3O4 during the course of electrode reaction.The discharge capacity of MnO2 electrodes modified with 5.0% (mass fraction) nanophase PbTiO3 is in average 45% higher than that of I.C.No.1 in 40% (mass fraction) KOH electrolytes,and chargedischarge efficiency is much improved by 10%~40%.
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Key words:
- MnO2 electrode
- / nanophase PbTiO3
- / modified additive
- / discharge capacity
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