Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes
- Autores
- Bazán, Julio César; Arvia, Alejandro Jorge
- Año de publicación
- 1964
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Several electrochemical reactions under ionic mass-transfer rate-control have been studied on cylindrical electrodes forming part of electrolysis cell. The electrodeposition of copper and the redox reactions for the ferro-ferricyanide systems have been examined, in each case with a large excess of a suitable inert electrolyte. The influences of concentration of the reacting species, rate of flowing, viscosity and diffusivity, height of the working electrode, temperature, and distance between anode and cathode, were studied under streamline-flow conditions. The data are fitted by the dimensionless equation Sh = 0·525 . eRd1/2 . Sc1/3 . (hd)3/4. The temperature dependence of the kinetic constant yielded the following experimental heats of activation (a) for copper ion deposition 4800 ± 200 cal/mole (b) for ferricyanide reduction, 3400 ± 200 cal/mole (c) for ferrocyanide oxidation, 3700 ± 200 cal/mole. Since the kinetic constant increases when the flow rate is increased and also when the electrode height is decreased, a departure from reversibility has been observed for the redox system reaction when suitable experimental conditions are chosen.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - Materia
-
Ciencias Exactas
Química
Ionic mass transfer
Electrochemical reactions - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/121414
Ver los metadatos del registro completo
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Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodesBazán, Julio CésarArvia, Alejandro JorgeCiencias ExactasQuímicaIonic mass transferElectrochemical reactionsSeveral electrochemical reactions under ionic mass-transfer rate-control have been studied on cylindrical electrodes forming part of electrolysis cell. The electrodeposition of copper and the redox reactions for the ferro-ferricyanide systems have been examined, in each case with a large excess of a suitable inert electrolyte. The influences of concentration of the reacting species, rate of flowing, viscosity and diffusivity, height of the working electrode, temperature, and distance between anode and cathode, were studied under streamline-flow conditions. The data are fitted by the dimensionless equation Sh = 0·525 . eR<sub>d</sub><sup>1/2</sup> . Sc<sup>1/3</sup> . (hd)<sup>3/4</sup>. The temperature dependence of the kinetic constant yielded the following experimental heats of activation (a) for copper ion deposition 4800 ± 200 cal/mole (b) for ferricyanide reduction, 3400 ± 200 cal/mole (c) for ferrocyanide oxidation, 3700 ± 200 cal/mole. Since the kinetic constant increases when the flow rate is increased and also when the electrode height is decreased, a departure from reversibility has been observed for the redox system reaction when suitable experimental conditions are chosen.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1964info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf667-684http://sedici.unlp.edu.ar/handle/10915/121414enginfo:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(64)80039-6info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:49Zoai:sedici.unlp.edu.ar:10915/121414Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:49.576SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
title |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
spellingShingle |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes Bazán, Julio César Ciencias Exactas Química Ionic mass transfer Electrochemical reactions |
title_short |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
title_full |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
title_fullStr |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
title_full_unstemmed |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
title_sort |
Ionic mass transfer in flowing solutions : Electrochemical reactions under ionic mass-transfer rate control on cylindrical electrodes |
dc.creator.none.fl_str_mv |
Bazán, Julio César Arvia, Alejandro Jorge |
author |
Bazán, Julio César |
author_facet |
Bazán, Julio César Arvia, Alejandro Jorge |
author_role |
author |
author2 |
Arvia, Alejandro Jorge |
author2_role |
author |
dc.subject.none.fl_str_mv |
Ciencias Exactas Química Ionic mass transfer Electrochemical reactions |
topic |
Ciencias Exactas Química Ionic mass transfer Electrochemical reactions |
dc.description.none.fl_txt_mv |
Several electrochemical reactions under ionic mass-transfer rate-control have been studied on cylindrical electrodes forming part of electrolysis cell. The electrodeposition of copper and the redox reactions for the ferro-ferricyanide systems have been examined, in each case with a large excess of a suitable inert electrolyte. The influences of concentration of the reacting species, rate of flowing, viscosity and diffusivity, height of the working electrode, temperature, and distance between anode and cathode, were studied under streamline-flow conditions. The data are fitted by the dimensionless equation Sh = 0·525 . eR<sub>d</sub><sup>1/2</sup> . Sc<sup>1/3</sup> . (hd)<sup>3/4</sup>. The temperature dependence of the kinetic constant yielded the following experimental heats of activation (a) for copper ion deposition 4800 ± 200 cal/mole (b) for ferricyanide reduction, 3400 ± 200 cal/mole (c) for ferrocyanide oxidation, 3700 ± 200 cal/mole. Since the kinetic constant increases when the flow rate is increased and also when the electrode height is decreased, a departure from reversibility has been observed for the redox system reaction when suitable experimental conditions are chosen. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas |
description |
Several electrochemical reactions under ionic mass-transfer rate-control have been studied on cylindrical electrodes forming part of electrolysis cell. The electrodeposition of copper and the redox reactions for the ferro-ferricyanide systems have been examined, in each case with a large excess of a suitable inert electrolyte. The influences of concentration of the reacting species, rate of flowing, viscosity and diffusivity, height of the working electrode, temperature, and distance between anode and cathode, were studied under streamline-flow conditions. The data are fitted by the dimensionless equation Sh = 0·525 . eR<sub>d</sub><sup>1/2</sup> . Sc<sup>1/3</sup> . (hd)<sup>3/4</sup>. The temperature dependence of the kinetic constant yielded the following experimental heats of activation (a) for copper ion deposition 4800 ± 200 cal/mole (b) for ferricyanide reduction, 3400 ± 200 cal/mole (c) for ferrocyanide oxidation, 3700 ± 200 cal/mole. Since the kinetic constant increases when the flow rate is increased and also when the electrode height is decreased, a departure from reversibility has been observed for the redox system reaction when suitable experimental conditions are chosen. |
publishDate |
1964 |
dc.date.none.fl_str_mv |
1964 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/121414 |
url |
http://sedici.unlp.edu.ar/handle/10915/121414 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0013-4686 info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(64)80039-6 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf 667-684 |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
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SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
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1844616166833651712 |
score |
13.070432 |