Electrochemical impedance spectroscopy on porous electrodes

Autores
Gassa, Liliana Mabel; Vilche, Jorge Roberto; Ebert, M.; Jüttner, K.; Lorenz, W.J.
Año de publicación
1990
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Electrochemical d.c. and a.c. measurements have been carried out on porous Raney nickel in H2-saturated 0.1 M, 1 M, and 6 M NaOH solutions atT=303 K and 333 K using rotating-disc and static-plaar electrodes. For comparison, measurements were also performed on graphite-cloth and graphite-felt electrodes. From polarization curves and current transients obtained in the potential range of the hydrogen evolution and hydrogen oxidation reactions the dependence of the electrocatalytic activity of Raney nickel on the prepolarization conditions was studied. Impedance spectra in the frequency range 1 mHzf 10 kHz were used to determine the characteristic pore parameters and to identify the kinetic behaviour of the porous electrodes by application of transfer function analysis using non-linear fit routines.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Química
Física
Transfer function
Oxidation reaction
Electrochemical impedance spectroscopy
Polarization curve
Potential range
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/138270
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/138270
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Electrochemical impedance spectroscopy on porous electrodesGassa, Liliana MabelVilche, Jorge RobertoEbert, M.Jüttner, K.Lorenz, W.J.QuímicaFísicaTransfer functionOxidation reactionElectrochemical impedance spectroscopyPolarization curvePotential rangeElectrochemical d.c. and a.c. measurements have been carried out on porous Raney nickel in H2-saturated 0.1 M, 1 M, and 6 M NaOH solutions atT=303 K and 333 K using rotating-disc and static-plaar electrodes. For comparison, measurements were also performed on graphite-cloth and graphite-felt electrodes. From polarization curves and current transients obtained in the potential range of the hydrogen evolution and hydrogen oxidation reactions the dependence of the electrocatalytic activity of Raney nickel on the prepolarization conditions was studied. Impedance spectra in the frequency range 1 mHzf 10 kHz were used to determine the characteristic pore parameters and to identify the kinetic behaviour of the porous electrodes by application of transfer function analysis using non-linear fit routines.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1990info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf677-685http://sedici.unlp.edu.ar/handle/10915/138270enginfo:eu-repo/semantics/altIdentifier/issn/0021-891Xinfo:eu-repo/semantics/altIdentifier/issn/1572-8838info:eu-repo/semantics/altIdentifier/doi/10.1007/BF01008882info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T17:13:20Zoai:sedici.unlp.edu.ar:10915/138270Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 17:13:21.234SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Electrochemical impedance spectroscopy on porous electrodes
title Electrochemical impedance spectroscopy on porous electrodes
spellingShingle Electrochemical impedance spectroscopy on porous electrodes
Gassa, Liliana Mabel
Química
Física
Transfer function
Oxidation reaction
Electrochemical impedance spectroscopy
Polarization curve
Potential range
title_short Electrochemical impedance spectroscopy on porous electrodes
title_full Electrochemical impedance spectroscopy on porous electrodes
title_fullStr Electrochemical impedance spectroscopy on porous electrodes
title_full_unstemmed Electrochemical impedance spectroscopy on porous electrodes
title_sort Electrochemical impedance spectroscopy on porous electrodes
dc.creator.none.fl_str_mv Gassa, Liliana Mabel
Vilche, Jorge Roberto
Ebert, M.
Jüttner, K.
Lorenz, W.J.
author Gassa, Liliana Mabel
author_facet Gassa, Liliana Mabel
Vilche, Jorge Roberto
Ebert, M.
Jüttner, K.
Lorenz, W.J.
author_role author
author2 Vilche, Jorge Roberto
Ebert, M.
Jüttner, K.
Lorenz, W.J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Química
Física
Transfer function
Oxidation reaction
Electrochemical impedance spectroscopy
Polarization curve
Potential range
topic Química
Física
Transfer function
Oxidation reaction
Electrochemical impedance spectroscopy
Polarization curve
Potential range
dc.description.none.fl_txt_mv Electrochemical d.c. and a.c. measurements have been carried out on porous Raney nickel in H2-saturated 0.1 M, 1 M, and 6 M NaOH solutions atT=303 K and 333 K using rotating-disc and static-plaar electrodes. For comparison, measurements were also performed on graphite-cloth and graphite-felt electrodes. From polarization curves and current transients obtained in the potential range of the hydrogen evolution and hydrogen oxidation reactions the dependence of the electrocatalytic activity of Raney nickel on the prepolarization conditions was studied. Impedance spectra in the frequency range 1 mHzf 10 kHz were used to determine the characteristic pore parameters and to identify the kinetic behaviour of the porous electrodes by application of transfer function analysis using non-linear fit routines.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description Electrochemical d.c. and a.c. measurements have been carried out on porous Raney nickel in H2-saturated 0.1 M, 1 M, and 6 M NaOH solutions atT=303 K and 333 K using rotating-disc and static-plaar electrodes. For comparison, measurements were also performed on graphite-cloth and graphite-felt electrodes. From polarization curves and current transients obtained in the potential range of the hydrogen evolution and hydrogen oxidation reactions the dependence of the electrocatalytic activity of Raney nickel on the prepolarization conditions was studied. Impedance spectra in the frequency range 1 mHzf 10 kHz were used to determine the characteristic pore parameters and to identify the kinetic behaviour of the porous electrodes by application of transfer function analysis using non-linear fit routines.
publishDate 1990
dc.date.none.fl_str_mv 1990
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/10915/138270
url http://sedici.unlp.edu.ar/handle/10915/138270
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0021-891X
info:eu-repo/semantics/altIdentifier/issn/1572-8838
info:eu-repo/semantics/altIdentifier/doi/10.1007/BF01008882
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
677-685
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection 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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score 12.982451

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