ELECTROSYNTHESIS OF LAYERED DOUBLE HYDROXIDES OF NICKEL WITH TRIVALENT CATIONS

被引:104
作者
INDIRA, L [1 ]
DIXIT, M [1 ]
KAMATA, PV [1 ]
机构
[1] BANGALORE UNIV,COLL CENT,DEPT CHEM,BANGALORE 560001,KARNATAKA,INDIA
关键词
NICKEL HYDROXIDES; LAYERED DOUBLE NICKEL HYDROXIDES; ELECTROSYNTHESIS; ALUMINUM; CHROMIUM; MANGANESE; IRON;
D O I
10.1016/0378-7753(94)01939-8
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
Layered double hydroxides (LDHs) of nickel with aluminium, chromium, manganese and iron, with the same structure as alpha-nickel hydroxide, have been electrosynthesized. This paves the way for their possible electrochemical impregnation in sintered nickel plaques for use as electrodes in nickel/cadmium batteries. All these LDHs stabilize the alpha-nickel hydroxide structure in alkaline media and retain electrochemical activity, as evidenced by cyclic voltammetric studies. The nickel-aluminium LDH shows the highest coulombic efficiency, while the nickel-iron LDH may prove to be unsuitable as a battery electrode material as it catalyzes oxygen evolution by 50 mV, as compared with pure nickel hydroxide.
引用
收藏
页码:93 / 97
页数:5
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