Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte

Quasi-two-dimensional (2D) growth patterns of silver electrodeposits obtained from aqueous silver sulfate solution in the absence of supporting electrolyte using a quasi-2D cylindrical cell involve domains with morphologies covering from dense to needle-like branching. The prevailing morphology depe...

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Autores principales: Schilardi, Patricia Laura, Marchiano, Susana Lucy, Salvarezza, Roberto Carlos, Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 2003
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/120114
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id I19-R120-10915-120114
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
Electrodeposits
Silver
Two-dimensional growth
spellingShingle Ciencias Exactas
Química
Electrodeposits
Silver
Two-dimensional growth
Schilardi, Patricia Laura
Marchiano, Susana Lucy
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
topic_facet Ciencias Exactas
Química
Electrodeposits
Silver
Two-dimensional growth
description Quasi-two-dimensional (2D) growth patterns of silver electrodeposits obtained from aqueous silver sulfate solution in the absence of supporting electrolyte using a quasi-2D cylindrical cell involve domains with morphologies covering from dense to needle-like branching. The prevailing morphology depends on the electrolyte concentration, applied electric potential and electrolysis time. From the time dependence of the maximum radius circumscribing each electrodeposit, its dimension was obtained. The growth of the solid phase was also analysed in terms of dimensionless numbers to estimate the ionic mass-transfer contributions to the electrochemical process. For a single-growing branch the axial-to-radial growth velocity is close to 10. Phenomena promoting silver electrodeposits with irregular edges and an open structure compete with others operating in the opposite direction. These phenomena are influenced by changes in the concentration and electric potential field around the growing electrodeposit.
format Articulo
Articulo
author Schilardi, Patricia Laura
Marchiano, Susana Lucy
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author_facet Schilardi, Patricia Laura
Marchiano, Susana Lucy
Salvarezza, Roberto Carlos
Arvia, Alejandro Jorge
author_sort Schilardi, Patricia Laura
title Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
title_short Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
title_full Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
title_fullStr Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
title_full_unstemmed Electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
title_sort electroformation of quasi-two-dimensional silver patterns in the absence of supporting electrolyte
publishDate 2003
url http://sedici.unlp.edu.ar/handle/10915/120114
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AT salvarezzarobertocarlos electroformationofquasitwodimensionalsilverpatternsintheabsenceofsupportingelectrolyte
AT arviaalejandrojorge electroformationofquasitwodimensionalsilverpatternsintheabsenceofsupportingelectrolyte
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