THE EFFECT OF MANGANESE ADDITION ON NICKEL-HYDROXIDE ELECTRODES WITH EMPHASIS ON ITS ELECTROCHROMIC PROPERTIES

被引：47
|
作者：
DETORRESI, SIC
机构：
[1] Departamento de Química, Universidade Federal de São Carlos, 13565-905 São Carlos, SP
来源：
ELECTROCHIMICA ACTA | 1995年 / 40卷 / 09期
关键词：
ELECTROCHROMISM; NICKEL HYDROXIDE; MANGANESE HYDROXIDE; ADDITIVES; ABSORPTION COEFFICIENT;
D O I：
10.1016/0013-4686(95)00024-9
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrochemical and electrochromic behaviour of Mn + Ni hydroxides composite electrodes prepared by galvanostatic codeposition, were studied. All the composition range form 0 to 100% of Mn was analyzed and they were studied by voltammetry associated with transmittance spectra in 0.1 M KOH electrolytic solution. It was verified that traces of Mn in nickel hydroxide electrodes produce not only the shift of Ni(II)/Ni(III) redox couple towards less positive potentials but also the diminution of the oxygen evolution reaction overpotential. Optical response will be analyzed by means absorption spectra, differentiated absorbance vs. E curves and optical density vs. charge plots.
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页码：1101 / 1107
页数：7
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