Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates

Detalhes bibliográficos
Autor(a) principal: Silva, R. P.
Data de Publicação: 2012
Outros Autores: Eugénio, S., Silva, Maria Teresa Oliveira de Moura e, Carmezim, M. J., Montemor, M. F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/5067
Resumo: Co-deposition of nickel and cobalt was carried out on austenitic stainless steel (AISI 304) substrates by imposing a square waveform current in the cathodic region. The innovative procedure applied in this work allows creating a stable, fully developed, and open porous three-dimensional (3D) dendritic structure, which can be used as electrode for redox supercapacitors. This study investigates in detail the influence of the applied current density on the morphology, mass, and chemical composition of the deposited Ni-Co films and the resulting 3D porous network dendritic structure. The morphology and the physicochemical composition were studied by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (W). The electrochemical behavior of the materials was evaluated by cyclic voltammetry (CV). The results highlight the mechanism involved in the coelectrodeposition process and how the lower limit current density tailors the film composition and morphology, as well as its electrochemical activity.
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spelling Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substratesNickelAlloysPowdersGrowthCo-deposition of nickel and cobalt was carried out on austenitic stainless steel (AISI 304) substrates by imposing a square waveform current in the cathodic region. The innovative procedure applied in this work allows creating a stable, fully developed, and open porous three-dimensional (3D) dendritic structure, which can be used as electrode for redox supercapacitors. This study investigates in detail the influence of the applied current density on the morphology, mass, and chemical composition of the deposited Ni-Co films and the resulting 3D porous network dendritic structure. The morphology and the physicochemical composition were studied by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (W). The electrochemical behavior of the materials was evaluated by cyclic voltammetry (CV). The results highlight the mechanism involved in the coelectrodeposition process and how the lower limit current density tailors the film composition and morphology, as well as its electrochemical activity.Amer chemicalRCIPLSilva, R. P.Eugénio, S.Silva, Maria Teresa Oliveira de Moura eCarmezim, M. J.Montemor, M. F.2015-09-07T09:37:15Z2012-10-252012-10-25T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttp://hdl.handle.net/10400.21/5067engSILVA, R. P.; [et al] – Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates. Journal of Physical Chemistry C. ISSN: 1932-7447. Vol. 116, nr. 42 (2012), pp. 22425-224311932-744710.1021/jp307612gmetadata only accessinfo: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:RCAAP2023-08-03T09:47:56Zoai:repositorio.ipl.pt:10400.21/5067Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:14:23.945951Repositório 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 Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
title Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
spellingShingle Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
Silva, R. P.
Nickel
Alloys
Powders
Growth
title_short Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
title_full Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
title_fullStr Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
title_full_unstemmed Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
title_sort Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates
author Silva, R. P.
author_facet Silva, R. P.
Eugénio, S.
Silva, Maria Teresa Oliveira de Moura e
Carmezim, M. J.
Montemor, M. F.
author_role author
author2 Eugénio, S.
Silva, Maria Teresa Oliveira de Moura e
Carmezim, M. J.
Montemor, M. F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Silva, R. P.
Eugénio, S.
Silva, Maria Teresa Oliveira de Moura e
Carmezim, M. J.
Montemor, M. F.
dc.subject.por.fl_str_mv Nickel
Alloys
Powders
Growth
topic Nickel
Alloys
Powders
Growth
description Co-deposition of nickel and cobalt was carried out on austenitic stainless steel (AISI 304) substrates by imposing a square waveform current in the cathodic region. The innovative procedure applied in this work allows creating a stable, fully developed, and open porous three-dimensional (3D) dendritic structure, which can be used as electrode for redox supercapacitors. This study investigates in detail the influence of the applied current density on the morphology, mass, and chemical composition of the deposited Ni-Co films and the resulting 3D porous network dendritic structure. The morphology and the physicochemical composition were studied by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction (W). The electrochemical behavior of the materials was evaluated by cyclic voltammetry (CV). The results highlight the mechanism involved in the coelectrodeposition process and how the lower limit current density tailors the film composition and morphology, as well as its electrochemical activity.
publishDate 2012
dc.date.none.fl_str_mv 2012-10-25
2012-10-25T00:00:00Z
2015-09-07T09:37:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.21/5067
url http://hdl.handle.net/10400.21/5067
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv SILVA, R. P.; [et al] – Fabrication of the three-dimensional dendritic Ni-Co films by electrodeposition on stainless steel substrates. Journal of Physical Chemistry C. ISSN: 1932-7447. Vol. 116, nr. 42 (2012), pp. 22425-22431
1932-7447
10.1021/jp307612g
dc.rights.driver.fl_str_mv metadata only access
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dc.publisher.none.fl_str_mv Amer chemical
publisher.none.fl_str_mv Amer chemical
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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