Reaction and system modelling for Pb and PbO₂ electrodes

Reaction models for the metal dissolution, active–passive transition and passive layer electro- reduction processes taking place during discharge/charge of the electrode active materials in the lead/sulphuric acid system are discussed. Reaction and system modelling can be evaluated on the base of re...

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Detalles Bibliográficos
Autores principales: Varela, Francisco Eduardo, Codaro, Eduardo Norberto, Vilche, Jorge Roberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 1997
Materias:
Química
Física
Lead/sulphuric acid system
Lead electrooxidation
Lead sulphate
Lead monoxide
Lead dioxide
Nucleation and growth mechanisms
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/145807
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-145807
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Química
Física
Lead/sulphuric acid system
Lead electrooxidation
Lead sulphate
Lead monoxide
Lead dioxide
Nucleation and growth mechanisms
spellingShingle Química
Física
Lead/sulphuric acid system
Lead electrooxidation
Lead sulphate
Lead monoxide
Lead dioxide
Nucleation and growth mechanisms
Varela, Francisco Eduardo
Codaro, Eduardo Norberto
Vilche, Jorge Roberto
Reaction and system modelling for Pb and PbO₂ electrodes
topic_facet Química
Física
Lead/sulphuric acid system
Lead electrooxidation
Lead sulphate
Lead monoxide
Lead dioxide
Nucleation and growth mechanisms
description Reaction models for the metal dissolution, active–passive transition and passive layer electro- reduction processes taking place during discharge/charge of the electrode active materials in the lead/sulphuric acid system are discussed. Reaction and system modelling can be evaluated on the base of results obtained from steady-state polarization, potentiostatic pulses, single (STPS) and repetitive (RTPS) triangular potential sweeps, modulated voltammetry, complex voltammetry combined with potentiostatic steps, and electrochemical impedance spectroscopy (EIS), using rotating ring Pb-disc Pb-electrode assemblies, as well as scanning electron microscopy (SEM). Data analysis derived from transient electrochemical techniques employing both parametric identification procedures, nonlinear fit routines and computer simulations has been interpreted in terms of appropriate nucleation and growth models for the formation of new phases, in which the characteristics and properties of the compounds generated on electrode surface exhibit a remarkable dependence on the corresponding operational potential.
format Articulo
Articulo
author Varela, Francisco Eduardo
Codaro, Eduardo Norberto
Vilche, Jorge Roberto
author_facet Varela, Francisco Eduardo
Codaro, Eduardo Norberto
Vilche, Jorge Roberto
author_sort Varela, Francisco Eduardo
title Reaction and system modelling for Pb and PbO₂ electrodes
title_short Reaction and system modelling for Pb and PbO₂ electrodes
title_full Reaction and system modelling for Pb and PbO₂ electrodes
title_fullStr Reaction and system modelling for Pb and PbO₂ electrodes
title_full_unstemmed Reaction and system modelling for Pb and PbO₂ electrodes
title_sort reaction and system modelling for pb and pbo₂ electrodes
publishDate 1997
url http://sedici.unlp.edu.ar/handle/10915/145807
work_keys_str_mv AT varelafranciscoeduardo reactionandsystemmodellingforpbandpbo2electrodes
AT codaroeduardonorberto reactionandsystemmodellingforpbandpbo2electrodes
AT vilchejorgeroberto reactionandsystemmodellingforpbandpbo2electrodes
bdutipo_str Repositorios
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