The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials

Fast periodic potentials applied to polycrystalline rhodium electrodes in acid and base electrolytes can cause, under certain conditions, the growth of hydrous oxide layers which after their electroreduction yield reproducible electrode surfaces with a large increase in the active surface area. Thes...

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Autores principales: Chialvo, Abel Cesar, Triaca, Walter Enrique, Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1987
Materias:
Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/127462
https://www.sciencedirect.com/science/article/abs/pii/0022072887852361?via%3Dihub
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-127462
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
polycrystalline rhodium electrodes
oxide layers
electroreduction
spellingShingle Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
Chialvo, Abel Cesar
Triaca, Walter Enrique
Arvia, Alejandro Jorge
The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
topic_facet Ciencias Exactas
Química
polycrystalline rhodium electrodes
oxide layers
electroreduction
description Fast periodic potentials applied to polycrystalline rhodium electrodes in acid and base electrolytes can cause, under certain conditions, the growth of hydrous oxide layers which after their electroreduction yield reproducible electrode surfaces with a large increase in the active surface area. These processes were investigated at 30° C by changing systematically the parameters of the perturbing potential including potentiostatic steps. The most suitable conditions for growing oxide layers capable of producing an increase in the rhodium electrode active surface area after their electroreduction correspond to a square wave perturbing potential at 1.8 kHz and a potential window between −0.025 and 2.0 V (vs. RHE). The processes related to the formation of anodic oxide layers under different experimental conditions are discussed.
format Articulo
Articulo
author Chialvo, Abel Cesar
Triaca, Walter Enrique
Arvia, Alejandro Jorge
author_facet Chialvo, Abel Cesar
Triaca, Walter Enrique
Arvia, Alejandro Jorge
author_sort Chialvo, Abel Cesar
title The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_short The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_full The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_fullStr The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_full_unstemmed The active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
title_sort active surface area increase of rhodium electrodes through electroreduction of oxide layers produced by fast periodic potentials
publishDate 1987
url http://sedici.unlp.edu.ar/handle/10915/127462
https://www.sciencedirect.com/science/article/abs/pii/0022072887852361?via%3Dihub
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