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

dc.contributor.authorCastro, Alichandra
dc.contributor.authorMorere, Jacobo
dc.contributor.authorCabañas, Albertina
dc.contributor.authorFerreira, Liliana P.
dc.contributor.authorGodinho, Margarida
dc.contributor.authorFerreira, Paula
dc.contributor.authorVilarinho, Paula M.
dc.date.accessioned2025-01-27T08:22:15Z
dc.date.available2025-01-27T08:22:15Z
dc.date.issued2016
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) the block copolymer-assisted self-assembly of a porous matrix; and (ii) the impregnation of nanoparticles from a ferroic phase into the pores by supercritical CO2 deposition. Porous nanopatterned BaTiO3 thin films with ca. 17 nm thickness are prepared using a cost-effective sol–gel solution containing a block copolymer and evaporation-induced self-assembly methodology. Hexagonally arranged pores with a diameter of ca. 95 nm, running perpendicular to the substrate, are filled with Ni nanoparticles using the supercritical fluid deposition technique, obtained from the reduction of hydrated nickel nitrate in a supercritical CO2–ethanol mixture at 250 °C. Small Ni nanoparticles of 21 ± 5 nm size are selectively deposited inside the pores of the porous matrix. Structural and magnetic properties prove the coexistence of both phases
dc.identifier.citationCastro, A., Morère, J., Cabañas, A., Ferreira, L. P., Godinho, M., Ferreira, P., & Vilarinho, P. M. (2017). Designing nanocomposites using supercritical CO2 to insert Ni nanoparticles into the pores of nanopatterned BaTiO3 thin films. Journal of Materials Chemistry C, 5(5), 1083–1089. 10.1039/C6TC04232E
dc.identifier.doi10.1039/c6tc04232e
dc.identifier.issn2050-7526 (print)
dc.identifier.issn2050-7534 (online)
dc.identifier.urihttps://hdl.handle.net/10115/64138
dc.language.isoen
dc.publisherRoyal Society of Chemistry
dc.rights.accessRightsinfo:eu-repo/semantics/closedAccess
dc.titleDesigning nanocomposites using supercritical CO2 to insert Ni nanoparticles into the pores of nanopatterned BaTiO3 thin films
dc.typeArticle

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