The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode

The influence of Co, Cd, and Zn ions on the voltammetric behavior of the nickel hydroxide electrode in binary and ternary metal hydroxide layers in 0.1M KOH and 0.08M KOH + 0.02M LiOH was investigated. The presence of Co hydroxide increases the reversibility of the Ni(II)/Ni(III) electrochemical rea...

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Autores principales: Uñates, M. E., Folquer, M. E., Vilche, Jorge Roberto, Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1992
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86551
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id I19-R120-10915-86551
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Cobalto
Cadmio
Zinc
Níquel
Hidróxidos
Cationes
Electroquímica
Electrodos
spellingShingle Ciencias Exactas
Química
Cobalto
Cadmio
Zinc
Níquel
Hidróxidos
Cationes
Electroquímica
Electrodos
Uñates, M. E.
Folquer, M. E.
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
topic_facet Ciencias Exactas
Química
Cobalto
Cadmio
Zinc
Níquel
Hidróxidos
Cationes
Electroquímica
Electrodos
description The influence of Co, Cd, and Zn ions on the voltammetric behavior of the nickel hydroxide electrode in binary and ternary metal hydroxide layers in 0.1M KOH and 0.08M KOH + 0.02M LiOH was investigated. The presence of Co hydroxide increases the reversibility of the Ni(II)/Ni(III) electrochemical reaction and hinders aging effects involving unstable Ni hydroxide species. The simultaneous presence of Co and Zn ions in the metal hydroxide layer has a beneficial influence for the long‐term stability and efficiency of the active material. The incorporation of Cd hydroxide increases the polarization of the oxygen evolution reaction. Results are interpreted in terms of either the existence of intermediate oxidation level of the foreign cations which can be produced at potentials lower than the equilibrium potential of the Ni hydroxide electrode or the influence of the foreign metal hydroxide on the oxygen evolution reaction.
format Articulo
Articulo
author Uñates, M. E.
Folquer, M. E.
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author_facet Uñates, M. E.
Folquer, M. E.
Vilche, Jorge Roberto
Arvia, Alejandro Jorge
author_sort Uñates, M. E.
title The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
title_short The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
title_full The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
title_fullStr The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
title_full_unstemmed The influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
title_sort influence of foreign cations on the electrochemical behavior of the nickel hydroxide electrode
publishDate 1992
url http://sedici.unlp.edu.ar/handle/10915/86551
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