Bi2O3 modified cobalt hydroxide as an electrode for alkaline batteries |
| |
Authors: | T.N. Ramesh P. Vishnu Kamath |
| |
Affiliation: | Department of Chemistry, Central College, Bangalore University, Bangalore 560001, India |
| |
Abstract: | Manganese dioxide electrode shows reversible charge storage capacity, if the charge-discharge process is limited to 0.3e− exchange. Addition of small amount of Bi2O3 to manganese dioxide induces reversibility with an exchange of 2e−/Mn. Nickel hydroxide is known to reversibly exchange 1e−. In spite of isostructural relationship between the cobalt hydroxide, nickel hydroxide and manganese dioxide, cobalt hydroxide does not show any electrochemical activity. Bi2O3 modified cobalt hydroxide electrodes exchanges 0.3-0.5e−/Co during the charge discharge process. The oxidation-reduction process in cobalt hydroxide and Bi2O3 modified cobalt hydroxide electrodes were monitored using the PXRD patterns. |
| |
Keywords: | Cobalt hydroxide Bi2O3 Electrode material Alkaline batteries |
本文献已被 ScienceDirect 等数据库收录! |