A study on the reversibility of Pb(II)/PbO2 conversion for the application of flow liquid battery

被引：21
|
作者：
Peng, H. Y. [1 ]
Chen, H. Y. [1 ]
Li, W. S. [1 ]
Hu, S. J. [1 ]
Li, H. [1 ]
Nan, J. M. [1 ]
Xu, Z. H. [1 ]
机构：
[1] S China Normal Univ, Dept Chem, Guangzhou 510631, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2007年 / 168卷 / 01期
基金：
中国国家自然科学基金;
关键词：
soluble divalent lead; lead dioxide; conversion; flow liquid battery;
D O I：
10.1016/j.jpowsour.2006.11.016
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 conversion behavior of soluble Pb(II) to deposited PbO2 on platinum in methanesulfonic acid solution was studied with voltamnmetry and compared with those on glassy carbon and lead oxides. The effects of methanesulfonic acid concentration and Pb(II) concentration, and temperature were considered. The conversion reaction of Pb(II) to PbO2 on platinum is irreversible and has a high overpotential, more than 300 mV. Low concentration of methanesulfonic acid, high concentration of Pb(II) and high temperature will favor the conversion reaction of Pb(II) to PbO2. The conversion reaction depends to a great extent on electrode materials. It is more difficult for the conversion reaction of Pb(II) to PbO2 to take place on glassy carbon than on platinum. However, the conversion reaction of Pb(II) to PbO2 becomes easy when it takes place on lead oxides, which was formed by reducing PbO2 under different potentials. (C)006 Elsevier B.V. All rights reserved.
引用
收藏
页码：105 / 109
页数：5
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