Designing nanocomposites using supercritical CO2 to insert Ni nanoparticles into the pores of nanopatterned BaTiO3 thin films

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dc.contributor.authorCastro, Alichandra
dc.contributor.authorMorère, Jacobo
dc.contributor.authorCabañas Poveda, Albertina
dc.contributor.authorFerreira, Liliana
dc.contributor.authorGodinho, Margarita
dc.contributor.authorFerreira, Paula
dc.contributor.authorVilarinho, Paula
dc.date.accessioned2023-06-17T21:49:14Z
dc.date.available2023-06-17T21:49:14Z
dc.date.issued2016-12
dc.description.abstractA new concept to prepare nanocomposite thin films is explored. Two chemical-based bottom-up steps are used to design functional films including: i) block copolymerassisted self-assembly of a porous matrix; and ii) impregnation of nanoparticles from a ferroic phase within the pores by supercritical CO2 deposition. Porous nanopatterned BaTiO3 thin films with ca. 17 nm of thickness are prepared using a cost-effective solgel solution containing a block copolymer and evaporation-induced self-assembly methodology. Hexagonal-arranged pores with diameter of ca. 95 nm, running perpendicularly to the substrate are filled with Ni nanoparticles using the supercritical fluid deposition technique from reduction of hydrated nickel nitrate in a supercritical CO2-ethanol mixture at 250 ºC. Small Ni nanoparticles with 21 ± 5 nm nm are selectively deposited inside the pores of the porous matrix. Structural and magnetic properties prove the coexistence of both phases.
dc.description.departmentDepto. de Química Física
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipCICECO-Aveiro Institute of Materials
dc.description.sponsorshipFCT/MEC
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/40826
dc.identifier.doi10.1039/C6TC04232E.
dc.identifier.issn2050-7526 (Print + online)
dc.identifier.officialurlhttp://pubs.rsc.org/en/content/articlelanding/2017/tc/c6tc04232e#!divAbstract
dc.identifier.urihttps://hdl.handle.net/20.500.14352/17589
dc.journal.titleJournal of Materials Chemistry C
dc.language.isoeng
dc.publisherRSC
dc.relation.projectIDCTQ2013-41781
dc.relation.projectIDPOCI-01-0145-FEDER-007679 (Ref. FCT UID/CTM/50011/2013)
dc.rights.accessRightsopen access
dc.subject.cdu544
dc.subject.keywordNanocomposite thin films
dc.subject.keywordnanopatterned porous films
dc.subject.keywordsupercritical CO2 deposition
dc.subject.keywordNi nanoparticles
dc.subject.keywordfunctional
dc.subject.ucmQuímica física (Química)
dc.titleDesigning nanocomposites using supercritical CO2 to insert Ni nanoparticles into the pores of nanopatterned BaTiO3 thin films
dc.typejournal article
dspace.entity.typePublication
relation.isAuthorOfPublication08f9e67b-e7ba-420b-a651-37a03ba04f0c
relation.isAuthorOfPublication.latestForDiscovery08f9e67b-e7ba-420b-a651-37a03ba04f0c
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