Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging

Detalhes bibliográficos
Autor(a) principal: Castro, A.
Data de Publicação: 2021
Outros Autores: Carvalho, I., Marques, L., Ferreira, P. J., Cavaleiro, A., Carvalho, S., Velasco, Sebastian Calderon
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/70448
Resumo: Bimetallic nanoparticles (NP) have demonstrated outstanding multifunctional characteristics, which depend on their size, distribution and composition. In this study, we show the possibility of tailoring the oxidation behavior of Zn-Fe bimetallic nanoparticles produced by magnetron sputtering and gas agglomeration system. Zn and Fe metals were coupled to promote faster oxidation of Zn, stimulating a galvanic mechanism due to the dissimilar corrosion potential in the nanoparticles. The results revealed Zn dissolution occurring at high humidity environments for bimetallic Zn-Fe nanoparticles where no intermix exists between Zn and Fe; however, such dissolution is excluded for ZnFe alloys. The effect of the galvanic couple on the Zn dissolution was confirmed by molecular dynamic simulations. This bimetallic system can be exploited as moisture-activated oxygen scavenger materials due to the acceleration in the oxidation mechanism.
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spelling Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavengingGalvanic potential, STEMMoisture-activatedPackagingRelative humidityScience & TechnologyBimetallic nanoparticles (NP) have demonstrated outstanding multifunctional characteristics, which depend on their size, distribution and composition. In this study, we show the possibility of tailoring the oxidation behavior of Zn-Fe bimetallic nanoparticles produced by magnetron sputtering and gas agglomeration system. Zn and Fe metals were coupled to promote faster oxidation of Zn, stimulating a galvanic mechanism due to the dissimilar corrosion potential in the nanoparticles. The results revealed Zn dissolution occurring at high humidity environments for bimetallic Zn-Fe nanoparticles where no intermix exists between Zn and Fe; however, such dissolution is excluded for ZnFe alloys. The effect of the galvanic couple on the Zn dissolution was confirmed by molecular dynamic simulations. This bimetallic system can be exploited as moisture-activated oxygen scavenger materials due to the acceleration in the oxidation mechanism.This research is sponsored by FEDER funds through the program COMPETE – Programa Operacional Factores de Competitividade and by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding UID/FIS/04650/2019, and UID/ EMS/00285/2013 and in the framework of ERA-SIINN/0004/2013, PTDC/CTM-NAN/4242/2014 and PTDC/NAN-MAT/30789/2017 projects, and through IDMEC, under LAETA, project UIDB/50022/2020. This research was supported by Norte Regional Operational Program 2014-2020 (Norte2020) through the European Regional Development Fund (ERDF) Nanotechnology based functional solutions (NORTE-01- 0145-FEDER-000019) and through European Social Fund (FSE), under the National Doctoral Program in “Surfaces Engineering and Protection”, NORTE-08-5369-FSE-000047. The authors would like to acknowledge that this project received funding from the EU Framework Programme for Research and Innovation H2020, scheme COFUND – Cofunding of Regional, National and International Programmes, under Grant Agreement 713640. The authors also thank the financial support by Portuguese Foundation for Science and Technology (FCT) in the framework of the HEALTHYDENT (co-financed via FEDER (PT2020) POCI-01-0145-FEDER-030708 and FCT (PIDDAC)), in the framework of the ATRITO-0 (co-financed via FEDER (PT2020) POCI-01-0145-FEDER030446 and FCT (PIDDAC)) and in the framework of the project NANOXYPACK co-financed via FEDER (PT2020) POCI-01-0145-FEDER030789.ElsevierUniversidade do MinhoCastro, A.Carvalho, I.Marques, L.Ferreira, P. J.Cavaleiro, A.Carvalho, S.Velasco, Sebastian Calderon2021-01-302021-01-30T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/70448eng0169-433210.1016/j.apsusc.2020.147896https://www.sciencedirect.com/science/article/pii/S0169433220326532#!info: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:RCAAP2023-07-21T11:59:48Zoai:repositorium.sdum.uminho.pt:1822/70448Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:49:36.989385Repositório 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 Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
title Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
spellingShingle Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
Castro, A.
Galvanic potential, STEM
Moisture-activated
Packaging
Relative humidity
Science & Technology
title_short Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
title_full Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
title_fullStr Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
title_full_unstemmed Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
title_sort Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging
author Castro, A.
author_facet Castro, A.
Carvalho, I.
Marques, L.
Ferreira, P. J.
Cavaleiro, A.
Carvalho, S.
Velasco, Sebastian Calderon
author_role author
author2 Carvalho, I.
Marques, L.
Ferreira, P. J.
Cavaleiro, A.
Carvalho, S.
Velasco, Sebastian Calderon
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Castro, A.
Carvalho, I.
Marques, L.
Ferreira, P. J.
Cavaleiro, A.
Carvalho, S.
Velasco, Sebastian Calderon
dc.subject.por.fl_str_mv Galvanic potential, STEM
Moisture-activated
Packaging
Relative humidity
Science & Technology
topic Galvanic potential, STEM
Moisture-activated
Packaging
Relative humidity
Science & Technology
description Bimetallic nanoparticles (NP) have demonstrated outstanding multifunctional characteristics, which depend on their size, distribution and composition. In this study, we show the possibility of tailoring the oxidation behavior of Zn-Fe bimetallic nanoparticles produced by magnetron sputtering and gas agglomeration system. Zn and Fe metals were coupled to promote faster oxidation of Zn, stimulating a galvanic mechanism due to the dissimilar corrosion potential in the nanoparticles. The results revealed Zn dissolution occurring at high humidity environments for bimetallic Zn-Fe nanoparticles where no intermix exists between Zn and Fe; however, such dissolution is excluded for ZnFe alloys. The effect of the galvanic couple on the Zn dissolution was confirmed by molecular dynamic simulations. This bimetallic system can be exploited as moisture-activated oxygen scavenger materials due to the acceleration in the oxidation mechanism.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-30
2021-01-30T00:00:00Z
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/1822/70448
url https://hdl.handle.net/1822/70448
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0169-4332
10.1016/j.apsusc.2020.147896
https://www.sciencedirect.com/science/article/pii/S0169433220326532#!
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 Elsevier
publisher.none.fl_str_mv Elsevier
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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