Stability of LaNiO3 gas diffusion oxygen electrodes

Detalhes bibliográficos
Autor(a) principal: Silva, R. A.
Data de Publicação: 2014
Outros Autores: Soares, C. O., Carvalho, M. D., Rangel, C. M., Pereira, M. I. da Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/2209
Resumo: In this work LaNiO3 perovskite-type oxide, prepared by a self-combustion method, was optimized for activity and stability as an anode material for water electrolysis. A full electrochemical study was conducted in order to kinetically characterize electrodes prepared using carbon paper as a base for porous gas-diffusion electrodes in alkaline media, regarding water oxidation and oxygen reduction reactions at room temperature. An electrode stability study was performed by potential cycling and at constant current density, using cyclic voltammetry and electrochemical impedance spectroscopy to check on stability after cycling with complementary scanning electron microscopy/energy dispersive X-ray spectrometry (SEM/EDS) analysis of fresh and degraded electrodes. Comparison was made using nickel foam as a support for LaNiO3 deposition. Carbon instability in the potential region of interest contrasted with the lower contact resistance between the oxide and support of the Ni foam. Higher metal oxide loadings and dimensional stability were also possible.
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spelling Stability of LaNiO3 gas diffusion oxygen electrodesPerovskite-type oxidesElectrolysisAnode materialsRegenerative fuel cellsGas diffusion electrodesIn this work LaNiO3 perovskite-type oxide, prepared by a self-combustion method, was optimized for activity and stability as an anode material for water electrolysis. A full electrochemical study was conducted in order to kinetically characterize electrodes prepared using carbon paper as a base for porous gas-diffusion electrodes in alkaline media, regarding water oxidation and oxygen reduction reactions at room temperature. An electrode stability study was performed by potential cycling and at constant current density, using cyclic voltammetry and electrochemical impedance spectroscopy to check on stability after cycling with complementary scanning electron microscopy/energy dispersive X-ray spectrometry (SEM/EDS) analysis of fresh and degraded electrodes. Comparison was made using nickel foam as a support for LaNiO3 deposition. Carbon instability in the potential region of interest contrasted with the lower contact resistance between the oxide and support of the Ni foam. Higher metal oxide loadings and dimensional stability were also possible.SpringerRepositório do LNEGSilva, R. A.Soares, C. O.Carvalho, M. D.Rangel, C. M.Pereira, M. I. da Silva2014-02-25T10:12:21Z2014-01-01T00:00:00Z2014-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/2209engSilva, R.A.; Soares, C.O.; Carvalho, M.D.; Rangel, C.M.; Pereira, M.I. da Silva. Stability of LaNiO3 gas diffusion oxygen electrodes. In: Journal of Solid State Electrochemistry, 2014, Vol. 18, nº 3, p. 821-8311432-8488info: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:RCAAP2022-09-06T12:27:04Zoai:repositorio.lneg.pt:10400.9/2209Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:35:05.622007Repositório 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 Stability of LaNiO3 gas diffusion oxygen electrodes
title Stability of LaNiO3 gas diffusion oxygen electrodes
spellingShingle Stability of LaNiO3 gas diffusion oxygen electrodes
Silva, R. A.
Perovskite-type oxides
Electrolysis
Anode materials
Regenerative fuel cells
Gas diffusion electrodes
title_short Stability of LaNiO3 gas diffusion oxygen electrodes
title_full Stability of LaNiO3 gas diffusion oxygen electrodes
title_fullStr Stability of LaNiO3 gas diffusion oxygen electrodes
title_full_unstemmed Stability of LaNiO3 gas diffusion oxygen electrodes
title_sort Stability of LaNiO3 gas diffusion oxygen electrodes
author Silva, R. A.
author_facet Silva, R. A.
Soares, C. O.
Carvalho, M. D.
Rangel, C. M.
Pereira, M. I. da Silva
author_role author
author2 Soares, C. O.
Carvalho, M. D.
Rangel, C. M.
Pereira, M. I. da Silva
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Silva, R. A.
Soares, C. O.
Carvalho, M. D.
Rangel, C. M.
Pereira, M. I. da Silva
dc.subject.por.fl_str_mv Perovskite-type oxides
Electrolysis
Anode materials
Regenerative fuel cells
Gas diffusion electrodes
topic Perovskite-type oxides
Electrolysis
Anode materials
Regenerative fuel cells
Gas diffusion electrodes
description In this work LaNiO3 perovskite-type oxide, prepared by a self-combustion method, was optimized for activity and stability as an anode material for water electrolysis. A full electrochemical study was conducted in order to kinetically characterize electrodes prepared using carbon paper as a base for porous gas-diffusion electrodes in alkaline media, regarding water oxidation and oxygen reduction reactions at room temperature. An electrode stability study was performed by potential cycling and at constant current density, using cyclic voltammetry and electrochemical impedance spectroscopy to check on stability after cycling with complementary scanning electron microscopy/energy dispersive X-ray spectrometry (SEM/EDS) analysis of fresh and degraded electrodes. Comparison was made using nickel foam as a support for LaNiO3 deposition. Carbon instability in the potential region of interest contrasted with the lower contact resistance between the oxide and support of the Ni foam. Higher metal oxide loadings and dimensional stability were also possible.
publishDate 2014
dc.date.none.fl_str_mv 2014-02-25T10:12:21Z
2014-01-01T00:00:00Z
2014-01-01T00:00:00Z
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 http://hdl.handle.net/10400.9/2209
url http://hdl.handle.net/10400.9/2209
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Silva, R.A.; Soares, C.O.; Carvalho, M.D.; Rangel, C.M.; Pereira, M.I. da Silva. Stability of LaNiO3 gas diffusion oxygen electrodes. In: Journal of Solid State Electrochemistry, 2014, Vol. 18, nº 3, p. 821-831
1432-8488
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.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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
repository.mail.fl_str_mv
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