A kinetic study of the electroreduction of anodically formed cobalt oxide layers
The kinetics of the electroreduction of anodically formed cobalt oxide layers in different carbonate-bicarbonate aqueous solutions were investigated using combined voltammetric and potential step techniques. The composition of tbe electrolyte was varied to cover wide pH and ionic strength ranges. Th...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1991 |
| País: | Argentina |
| Recursos: | Universidad Nacional de La Plata |
| Repositorio: | SEDICI (UNLP) |
| Idioma: | inglés |
| OAI Identifier: | oai:sedici.unlp.edu.ar:10915/118503 |
| Acesso em linha: | http://sedici.unlp.edu.ar/handle/10915/118503 |
| Access Level: | acceso abierto |
| Palavra-chave: | Química Ciencias Exactas Cobalt oxides Electroreduction Kinetics Voltammetry Chronoamperometry |
| Resumo: | The kinetics of the electroreduction of anodically formed cobalt oxide layers in different carbonate-bicarbonate aqueous solutions were investigated using combined voltammetric and potential step techniques. The composition of tbe electrolyte was varied to cover wide pH and ionic strength ranges. The electroreduction reaction can be explained through a nucleation and three-dimensional growth process, involving cobalt phase formation from either soluble Co(H) or Co(111) species. |
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