Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors

Detalhes bibliográficos
Autor(a) principal: Siwek, K. I.
Data de Publicação: 2022
Outros Autores: Eugenio, S., Aldama, I., Rojo, J. M., Amarilla, J. M., Da Costa Ribeiro, Ana Paula, Moura E Silva, Teresa, 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/10400.21/14438
Resumo: Tailored 3D (Ni and NiCo) metallic foam architectures were produced by electrodeposition and decorated via electrochemical routes with manganese oxide (MnOx) to serve as positive electrodes for supercapacitors. For comparative purposes, an electrode made of commercial Ni foam was also prepared. The foam-based electrodes were paired with a carbon cloth electrode and used to assemble asymmetric electrochemical cells. The electrochemical response of these cells was studied by applying different electrochemical techniques. In addition, two different protocols (cycling and floating) were applied to assess cells durability and fade. Despite the significant differences in the decorated foams morphology and structure their electrochemical responses revealed similar trends. The electrodes made of tailored foams showed higher specific capacitance, better capacitance retention at high current load and enhanced cycling stability compared to the electrodes made of commercial foam. The asymmetric cells made with the tailored foams revealed higher (maximum) specific energy (11-14 Wh kg(-1)) and specific power (1.3-1.4 x 10(4 )W kg(-1)) compared to cells assembled with commercial foams (8.4 Wh kg(-1) and 6.3 x 10(3) W kg(-1)). The durability tests evidenced that corrosion of the NiCo electrodeposited foams and electrochemical dissolution of MnOx are possible causes of cells degradation.
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spelling Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitorsTailored 3D foamManganese oxide (MnOx)Electrochemical capacitorsTailored 3D (Ni and NiCo) metallic foam architectures were produced by electrodeposition and decorated via electrochemical routes with manganese oxide (MnOx) to serve as positive electrodes for supercapacitors. For comparative purposes, an electrode made of commercial Ni foam was also prepared. The foam-based electrodes were paired with a carbon cloth electrode and used to assemble asymmetric electrochemical cells. The electrochemical response of these cells was studied by applying different electrochemical techniques. In addition, two different protocols (cycling and floating) were applied to assess cells durability and fade. Despite the significant differences in the decorated foams morphology and structure their electrochemical responses revealed similar trends. The electrodes made of tailored foams showed higher specific capacitance, better capacitance retention at high current load and enhanced cycling stability compared to the electrodes made of commercial foam. The asymmetric cells made with the tailored foams revealed higher (maximum) specific energy (11-14 Wh kg(-1)) and specific power (1.3-1.4 x 10(4 )W kg(-1)) compared to cells assembled with commercial foams (8.4 Wh kg(-1) and 6.3 x 10(3) W kg(-1)). The durability tests evidenced that corrosion of the NiCo electrodeposited foams and electrochemical dissolution of MnOx are possible causes of cells degradation.Electrochemical Society Inc.RCIPLSiwek, K. I.Eugenio, S.Aldama, I.Rojo, J. M.Amarilla, J. M.Da Costa Ribeiro, Ana PaulaMoura E Silva, TeresaMontemor, M.F.2022-03-10T14:17:48Z2022-02-012022-02-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/14438engSIWEK, K. I.; [et al] – Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors. Journal of the Electrochemical Society. ISSN 0013-4651. Vol. 169, N.º 2 (2022), pp. 1-10.0013-465110.1149/1945-7111/ac4d661945-7111metadata 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:RCAAP2023-08-03T10:10:36Zoai:repositorio.ipl.pt:10400.21/14438Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:22:14.769465Repositório 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 Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
title Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
spellingShingle Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
Siwek, K. I.
Tailored 3D foam
Manganese oxide (MnOx)
Electrochemical capacitors
title_short Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
title_full Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
title_fullStr Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
title_full_unstemmed Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
title_sort Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors
author Siwek, K. I.
author_facet Siwek, K. I.
Eugenio, S.
Aldama, I.
Rojo, J. M.
Amarilla, J. M.
Da Costa Ribeiro, Ana Paula
Moura E Silva, Teresa
Montemor, M.F.
author_role author
author2 Eugenio, S.
Aldama, I.
Rojo, J. M.
Amarilla, J. M.
Da Costa Ribeiro, Ana Paula
Moura E Silva, Teresa
Montemor, M.F.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Siwek, K. I.
Eugenio, S.
Aldama, I.
Rojo, J. M.
Amarilla, J. M.
Da Costa Ribeiro, Ana Paula
Moura E Silva, Teresa
Montemor, M.F.
dc.subject.por.fl_str_mv Tailored 3D foam
Manganese oxide (MnOx)
Electrochemical capacitors
topic Tailored 3D foam
Manganese oxide (MnOx)
Electrochemical capacitors
description Tailored 3D (Ni and NiCo) metallic foam architectures were produced by electrodeposition and decorated via electrochemical routes with manganese oxide (MnOx) to serve as positive electrodes for supercapacitors. For comparative purposes, an electrode made of commercial Ni foam was also prepared. The foam-based electrodes were paired with a carbon cloth electrode and used to assemble asymmetric electrochemical cells. The electrochemical response of these cells was studied by applying different electrochemical techniques. In addition, two different protocols (cycling and floating) were applied to assess cells durability and fade. Despite the significant differences in the decorated foams morphology and structure their electrochemical responses revealed similar trends. The electrodes made of tailored foams showed higher specific capacitance, better capacitance retention at high current load and enhanced cycling stability compared to the electrodes made of commercial foam. The asymmetric cells made with the tailored foams revealed higher (maximum) specific energy (11-14 Wh kg(-1)) and specific power (1.3-1.4 x 10(4 )W kg(-1)) compared to cells assembled with commercial foams (8.4 Wh kg(-1) and 6.3 x 10(3) W kg(-1)). The durability tests evidenced that corrosion of the NiCo electrodeposited foams and electrochemical dissolution of MnOx are possible causes of cells degradation.
publishDate 2022
dc.date.none.fl_str_mv 2022-03-10T14:17:48Z
2022-02-01
2022-02-01T00:00:00Z
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/10400.21/14438
url http://hdl.handle.net/10400.21/14438
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv SIWEK, K. I.; [et al] – Tailored 3D foams decorated with nanostructured manganese oxide for asymmetric electrochemical capacitors. Journal of the Electrochemical Society. ISSN 0013-4651. Vol. 169, N.º 2 (2022), pp. 1-10.
0013-4651
10.1149/1945-7111/ac4d66
1945-7111
dc.rights.driver.fl_str_mv metadata only access
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eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Electrochemical Society Inc.
publisher.none.fl_str_mv Electrochemical Society Inc.
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
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instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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