Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications
Main Author: | |
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Publication Date: | 2019 |
Other Authors: | , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10400.21/10378 |
Summary: | Three-dimensional (3D) electrode design has great advantages over its two-dimensional (2D) counterparts, including higher mass loading of active material, enhanced ion diffusion, and electron charge transfer. Commercial 3D porous structures (i.e., Ni foams) do not fit the purpose of the ideal 3D electrode for supercapacitors, in which surface area (per cm(2)) is more important than large pore volume. These characteristics, however, can be tuned by the dynamic hydrogen bubble template (DHBT) electrodeposition, a route that is used to tailor 3D nanostructured (multi-) metallic porous surfaces. In addition to the higher surface area and tailored porosity, these 3D nanostructures can be subsequently functionalized with different species such as metal oxides or other compounds. Therefore, a facile two-step electrochemical fabrication of 3D composite electrode composed of a bimetallic foam functionalized with manganese (Mn) oxide is proposed. The effect of applied current densities on the distribution and structure of Mn oxide (MnOx) electrodeposited over the bare foam is discussed. The results demonstrate that this route paves the way to design high-surface-area architectures for charge storage electrodes with enhanced electrochemical performance (194Fg(-1) mg(-1) of electrodeposited MnOx at 0.5Ag(-1)) and high charge-discharge rate capabilities (91% capacitance retention at 20Ag(-1)) for supercapacitor applications. |
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Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications3D nickel-cobalt nanofoamsElectrodepositionFunctional coatingsManganese oxideSupercapacitorsThree-dimensional (3D) electrode design has great advantages over its two-dimensional (2D) counterparts, including higher mass loading of active material, enhanced ion diffusion, and electron charge transfer. Commercial 3D porous structures (i.e., Ni foams) do not fit the purpose of the ideal 3D electrode for supercapacitors, in which surface area (per cm(2)) is more important than large pore volume. These characteristics, however, can be tuned by the dynamic hydrogen bubble template (DHBT) electrodeposition, a route that is used to tailor 3D nanostructured (multi-) metallic porous surfaces. In addition to the higher surface area and tailored porosity, these 3D nanostructures can be subsequently functionalized with different species such as metal oxides or other compounds. Therefore, a facile two-step electrochemical fabrication of 3D composite electrode composed of a bimetallic foam functionalized with manganese (Mn) oxide is proposed. The effect of applied current densities on the distribution and structure of Mn oxide (MnOx) electrodeposited over the bare foam is discussed. The results demonstrate that this route paves the way to design high-surface-area architectures for charge storage electrodes with enhanced electrochemical performance (194Fg(-1) mg(-1) of electrodeposited MnOx at 0.5Ag(-1)) and high charge-discharge rate capabilities (91% capacitance retention at 20Ag(-1)) for supercapacitor applications.WileyRCIPLSiwek, KatarzynaEugénio, SóniaMoura E Silva, TeresaM.F. Montemor2019-07-29T08:33:31Z2019-042019-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/10378engSIWEK, Katarzyna Irena; [et al] – Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications. Energy Technology. ISSN 2194-4288. Vol. 7, N.º 5 (2019), pp. 1-252194-428810.1002/ente.201801139metadata 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:RCAAP2023-08-03T10:00:15Zoai:repositorio.ipl.pt:10400.21/10378Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:18:48.849724Repositório 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 |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
title |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
spellingShingle |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications Siwek, Katarzyna 3D nickel-cobalt nanofoams Electrodeposition Functional coatings Manganese oxide Supercapacitors |
title_short |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
title_full |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
title_fullStr |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
title_full_unstemmed |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
title_sort |
Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications |
author |
Siwek, Katarzyna |
author_facet |
Siwek, Katarzyna Eugénio, Sónia Moura E Silva, Teresa M.F. Montemor |
author_role |
author |
author2 |
Eugénio, Sónia Moura E Silva, Teresa M.F. Montemor |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Siwek, Katarzyna Eugénio, Sónia Moura E Silva, Teresa M.F. Montemor |
dc.subject.por.fl_str_mv |
3D nickel-cobalt nanofoams Electrodeposition Functional coatings Manganese oxide Supercapacitors |
topic |
3D nickel-cobalt nanofoams Electrodeposition Functional coatings Manganese oxide Supercapacitors |
description |
Three-dimensional (3D) electrode design has great advantages over its two-dimensional (2D) counterparts, including higher mass loading of active material, enhanced ion diffusion, and electron charge transfer. Commercial 3D porous structures (i.e., Ni foams) do not fit the purpose of the ideal 3D electrode for supercapacitors, in which surface area (per cm(2)) is more important than large pore volume. These characteristics, however, can be tuned by the dynamic hydrogen bubble template (DHBT) electrodeposition, a route that is used to tailor 3D nanostructured (multi-) metallic porous surfaces. In addition to the higher surface area and tailored porosity, these 3D nanostructures can be subsequently functionalized with different species such as metal oxides or other compounds. Therefore, a facile two-step electrochemical fabrication of 3D composite electrode composed of a bimetallic foam functionalized with manganese (Mn) oxide is proposed. The effect of applied current densities on the distribution and structure of Mn oxide (MnOx) electrodeposited over the bare foam is discussed. The results demonstrate that this route paves the way to design high-surface-area architectures for charge storage electrodes with enhanced electrochemical performance (194Fg(-1) mg(-1) of electrodeposited MnOx at 0.5Ag(-1)) and high charge-discharge rate capabilities (91% capacitance retention at 20Ag(-1)) for supercapacitor applications. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07-29T08:33:31Z 2019-04 2019-04-01T00:00:00Z |
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/10400.21/10378 |
url |
http://hdl.handle.net/10400.21/10378 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SIWEK, Katarzyna Irena; [et al] – Electrodeposited manganese oxide on tailored 3D bimetallic nanofoams for energy storage applications. Energy Technology. ISSN 2194-4288. Vol. 7, N.º 5 (2019), pp. 1-25 2194-4288 10.1002/ente.201801139 |
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metadata only access info:eu-repo/semantics/openAccess |
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metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Wiley |
publisher.none.fl_str_mv |
Wiley |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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