Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes

Detalhes bibliográficos
Autor(a) principal: J. F. Silva
Data de Publicação: 2016
Outros Autores: A. C. Dias, P. Araújo, C. M. A. Brett, A. Mendes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/10216/103619
Resumo: A new electrochemical cell design suitable for the electrochemical impedance spectroscopy (EIS)studies of chlorine evolution on Dimensionally Stable Anodes (DSA®) has been developed. Despitebeing considered a powerful tool, EIS has rarely been used to study the kinetics of chlorine evolutionat DSA anodes. Cell designs in the open literature are unsuitable for the EIS analysis at high DSAanode current densities for chlorine evolution because they allow gas accumulation at the electrodesurface. Using the new cell, the impedance spectra of the DSA anode during chlorine evolution at highsodium chloride concentration (5 mol dm−3 NaCl) and high current densities (up to 140 mA cm−2)were recorded. Additionally, polarization curves and voltammograms were obtained showing little orno noise. EIS and polarization curves evidence the role of the adsorption step in the chlorine evolutionreaction, compatible with the Volmer-Heyrovsky and Volmer-Tafel mechanisms.
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spelling Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodesCiências TecnológicasTechnological sciencesA new electrochemical cell design suitable for the electrochemical impedance spectroscopy (EIS)studies of chlorine evolution on Dimensionally Stable Anodes (DSA®) has been developed. Despitebeing considered a powerful tool, EIS has rarely been used to study the kinetics of chlorine evolutionat DSA anodes. Cell designs in the open literature are unsuitable for the EIS analysis at high DSAanode current densities for chlorine evolution because they allow gas accumulation at the electrodesurface. Using the new cell, the impedance spectra of the DSA anode during chlorine evolution at highsodium chloride concentration (5 mol dm−3 NaCl) and high current densities (up to 140 mA cm−2)were recorded. Additionally, polarization curves and voltammograms were obtained showing little orno noise. EIS and polarization curves evidence the role of the adsorption step in the chlorine evolutionreaction, compatible with the Volmer-Heyrovsky and Volmer-Tafel mechanisms.20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10216/103619eng0034-674810.1063/1.4959097J. F. SilvaA. C. DiasP. AraújoC. M. A. BrettA. Mendesinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-29T14:20:18Zoai:repositorio-aberto.up.pt:10216/103619Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T23:59:13.100332Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
title Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
spellingShingle Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
J. F. Silva
Ciências Tecnológicas
Technological sciences
title_short Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
title_full Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
title_fullStr Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
title_full_unstemmed Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
title_sort Electrochemical cell design for the impedance studies of chlorine evolution at DSA® anodes
author J. F. Silva
author_facet J. F. Silva
A. C. Dias
P. Araújo
C. M. A. Brett
A. Mendes
author_role author
author2 A. C. Dias
P. Araújo
C. M. A. Brett
A. Mendes
author2_role author
author
author
author
dc.contributor.author.fl_str_mv J. F. Silva
A. C. Dias
P. Araújo
C. M. A. Brett
A. Mendes
dc.subject.por.fl_str_mv Ciências Tecnológicas
Technological sciences
topic Ciências Tecnológicas
Technological sciences
description A new electrochemical cell design suitable for the electrochemical impedance spectroscopy (EIS)studies of chlorine evolution on Dimensionally Stable Anodes (DSA®) has been developed. Despitebeing considered a powerful tool, EIS has rarely been used to study the kinetics of chlorine evolutionat DSA anodes. Cell designs in the open literature are unsuitable for the EIS analysis at high DSAanode current densities for chlorine evolution because they allow gas accumulation at the electrodesurface. Using the new cell, the impedance spectra of the DSA anode during chlorine evolution at highsodium chloride concentration (5 mol dm−3 NaCl) and high current densities (up to 140 mA cm−2)were recorded. Additionally, polarization curves and voltammograms were obtained showing little orno noise. EIS and polarization curves evidence the role of the adsorption step in the chlorine evolutionreaction, compatible with the Volmer-Heyrovsky and Volmer-Tafel mechanisms.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/10216/103619
url https://hdl.handle.net/10216/103619
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0034-6748
10.1063/1.4959097
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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