Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/70448Registo completo
| Campo DC | Valor | Idioma |
|---|---|---|
| dc.contributor.author | Castro, A. | por |
| dc.contributor.author | Carvalho, I. | por |
| dc.contributor.author | Marques, L. | por |
| dc.contributor.author | Ferreira, P. J. | por |
| dc.contributor.author | Cavaleiro, A. | por |
| dc.contributor.author | Carvalho, S. | por |
| dc.contributor.author | Velasco, Sebastian Calderon | por |
| dc.date.accessioned | 2021-02-26T12:05:08Z | - |
| dc.date.available | 2021-02-26T12:05:08Z | - |
| dc.date.issued | 2021-01-30 | - |
| dc.identifier.issn | 0169-4332 | por |
| dc.identifier.uri | https://hdl.handle.net/1822/70448 | - |
| dc.description.abstract | 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. | por |
| dc.description.sponsorship | 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. | por |
| dc.language.iso | eng | por |
| dc.publisher | Elsevier 1 | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FFIS%2F04650%2F2019/PT | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/5876/147405/PT | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/3599-PPCDT/138552/PT | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FCTM-NAN%2F4242%2F2014/PT | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FNAN-MAT%2F30789%2F2017/PT | por |
| dc.relation | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT | por |
| dc.rights | openAccess | por |
| dc.subject | Galvanic potential, STEM | por |
| dc.subject | Moisture-activated | por |
| dc.subject | Packaging | por |
| dc.subject | Relative humidity | por |
| dc.title | Galvanic oxidation of bimetallic Zn-Fe nanoparticles for oxygen scavenging | por |
| dc.type | article | - |
| dc.peerreviewed | yes | por |
| dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0169433220326532#! | por |
| oaire.citationVolume | 537 | por |
| dc.date.updated | 2021-02-26T11:51:11Z | - |
| dc.identifier.doi | 10.1016/j.apsusc.2020.147896 | por |
| dc.subject.wos | Science & Technology | por |
| sdum.export.identifier | 8974 | - |
| sdum.journal | Applied Surface Science | por |
| Aparece nas coleções: | CDF - FCT - Artigos/Papers (with refereeing) | |
Ficheiros deste registo:
| Ficheiro | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| 1-s2.0-S0169433220326532-main.pdf | 15,13 MB | Adobe PDF | Ver/Abrir |
