Kinetic study of silver (I) oxide layer electroreduction

The potentiostatic electroreduction of silver(I) oxide layer has been investigated in 0.1 M NaOH. The study was complemented by electroreduced silver surface characterisation through scanning electron microscopy micrographs and thallium UPD voltammetry. By properly adjusting the electroreduction con...

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Autores principales:	Gómez Becerra, J., Salvarezza, Roberto Carlos, Arvia, Alejandro Jorge
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	1990
Materias:	Química Ciencias Exactas Potentiostatic electroreduction Scanning electron microscopy UPD voltammetry Silver
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/121495
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-121495
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Química Ciencias Exactas Potentiostatic electroreduction Scanning electron microscopy UPD voltammetry Silver
spellingShingle	Química Ciencias Exactas Potentiostatic electroreduction Scanning electron microscopy UPD voltammetry Silver Gómez Becerra, J. Salvarezza, Roberto Carlos Arvia, Alejandro Jorge Kinetic study of silver (I) oxide layer electroreduction
topic_facet	Química Ciencias Exactas Potentiostatic electroreduction Scanning electron microscopy UPD voltammetry Silver
description	The potentiostatic electroreduction of silver(I) oxide layer has been investigated in 0.1 M NaOH. The study was complemented by electroreduced silver surface characterisation through scanning electron microscopy micrographs and thallium UPD voltammetry. By properly adjusting the electroreduction conditions three well-defined processes could be distinguished: (i) the electroreduction of the Ag2O monolayer in direct contact with the silver substrate which involves a current decay following a first order law; (ii) the electroreduction of the primary Ag2O layer which can be described through an instantaneous nucleation and 3-D growth mechanism under diffusion control; (iii) the electroreduction of the secondary Ag2O layer involving a nucleation and 3-D conical growth under charge transfer control and a correction term for the death of growing nuclei. SEM and thallium UPD results correlate, in principle, with the conclusions derived from the electrochemical data.
format	Articulo Articulo
author	Gómez Becerra, J. Salvarezza, Roberto Carlos Arvia, Alejandro Jorge
author_facet	Gómez Becerra, J. Salvarezza, Roberto Carlos Arvia, Alejandro Jorge
author_sort	Gómez Becerra, J.
title	Kinetic study of silver (I) oxide layer electroreduction
title_short	Kinetic study of silver (I) oxide layer electroreduction
title_full	Kinetic study of silver (I) oxide layer electroreduction
title_fullStr	Kinetic study of silver (I) oxide layer electroreduction
title_full_unstemmed	Kinetic study of silver (I) oxide layer electroreduction
title_sort	kinetic study of silver (i) oxide layer electroreduction
publishDate	1990
url	http://sedici.unlp.edu.ar/handle/10915/121495
work_keys_str_mv	AT gomezbecerraj kineticstudyofsilverioxidelayerelectroreduction AT salvarezzarobertocarlos kineticstudyofsilverioxidelayerelectroreduction AT arviaalejandrojorge kineticstudyofsilverioxidelayerelectroreduction
bdutipo_str	Repositorios
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Kinetic study of silver (I) oxide layer electroreduction

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