A phenomenological approach to hydrous nickel oxide electrodes prepared by applying periodic potential routines

被引：13

作者：

Visintin, A

Triaca, WE

Arvia, AJ

机构：

[1] Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, INIFTA, Universidad Nacional de La Plata, (1900) La Plata, Casilla de Correo 16

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1996年 / 26卷 / 05期

关键词：

D O I：

10.1007/BF01021972

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The characteristics of hydrous nickel oxide layers formed by the application of a fast periodic square-wave potential routine to a polycrystalline nickel electrode in alkaline solutions of different composition have been studied. The charging/discharging properties of the electroformed oxide layers were derived from voltammetry. Infrared spectroscopy data indicated that the nickel oxide layers resulting from vacuum drying at 100 degrees C consisted of a mixture of Ni(II) and Ni(III) oxides, the Ni(II)/Ni(III) ratio depending on the characteristics of the potential routine. X-ray analysis data and SEM micrographs showed the amorphous nature of the thick hydrous nickel hydroxide films produced by the above mentioned procedure. A correlation between the properties of the nickel oxide layers and their electrochemical response in alkaline solution has been advanced.

引用

页码：493 / 502

页数：10

共 43 条

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