Crystallization Pathways of Multicomponent Oxide Nanocrystals Critical Role of the Metal Cations Distribution in the Case Study of Metal Ferrites (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Crystallization Pathways of Multicomponent Oxide Nanocrystals Critical Role of the Metal Cations Distribution in the Case Study of Metal Ferrites (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

Alternative label

• Epifani M, Arbiol J, Andreu T, Morante JR (2010)
  Crystallization Pathways of Multicomponent Oxide Nanocrystals Critical Role of the Metal Cations Distribution in the Case Study of Metal Ferrites
  in Crystal growth & design
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Epifani M, Arbiol J, Andreu T, Morante JR (literal)

Pagina inizio

• 5176 (literal)

Pagina fine

• 5181 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 10 (literal)

Rivista

• Crystal growth & design (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1. IMM-CNR, Lecce, Italy 2. CSIC, ICREA, Bellaterra 08193, Cat Spain 3. CSIC, Inst Ciencia Mat Barcelona, Bellaterra 08193, Cat Spain 4. Univ Barcelona, XaRMAE IN2UB M2E, Dept Elect, E-08028 Barcelona, Cat Spain 5. IREC, E-08019 Barcelona, Spain (literal)

Titolo

• Crystallization Pathways of Multicomponent Oxide Nanocrystals Critical Role of the Metal Cations Distribution in the Case Study of Metal Ferrites (literal)

Abstract

• Metal ferrite (MFe2O4, with M = Fe, Mn, Co Ni Cu, Zn) nanoparticles were synthesized by processing metal oxide sols in a coordinating environment The sols were prepared by forced hydrolysis of the starting metal nitrates, in the presence of acetylacetone for avoiding precipitation Two different processing routes were investigated In the first, the sol was injected into a hot (160 degrees C) solution of dodecylamine in tetradecene In the second route the Injection environment was constituted by pure dodec ylamine heated at the same temperature The precipitate from the first route was heat-treated in air at various temperatures, from 200 to 500 degrees C The redispersible nanoparticles from the second route were annealed in oleylamine at temperatures up to 220 degrees C In the first case, crystallization was obtained only after heat-treatment at 500 degrees C, while 220 degrees C was sufficient for crystallizing 1 he nanoparticles dispersed in oleylamine The samples from the two routes were investigated by X-ray diffraction and transmission electron microscopy/electron energy loss spectroscopy in the case system of NiFe2O4 The product from the first route, after heating at 200 degrees C, was a disordered material, with a broad size distribution of aggregates and Ni depletion regions The product from the second route was constituted by discrete nanoparticles with the correct cation stoichiometry The interpretation of the results allowed concluding that obtaining simple structural reorganization in nanosized volumes is a key factor for crystallization under mild conditions. (literal)

Prodotto di

• Sensori e Microsistemi Intelligenti per la Sicurezza e la Qualità della vita nei settori Agroalimentare, Trasporti ed \"Ambient Assisted Living\" (MD.P05.010.001) (Modulo)
• Institute for microelectronics and microsystems (IMM) (Istituto)

Autore CNR

• MAURO SALVATORE EPIFANI (Persona)

Incoming links:

Prodotto

• Institute for microelectronics and microsystems (IMM) (Istituto)
• Sensori e Microsistemi Intelligenti per la Sicurezza e la Qualità della vita nei settori Agroalimentare, Trasporti ed \"Ambient Assisted Living\" (MD.P05.010.001) (Modulo)

Autore CNR di

• MAURO SALVATORE EPIFANI (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Crystal growth & design (Rivista)