@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS057 prodottidellaricerca:prodotto prodotto:ID35514 . @prefix pubblicazioni: . @prefix unitaDiPersonaleInterno: . unitaDiPersonaleInterno:MATRICOLA19935 pubblicazioni:autoreCNRDi prodotto:ID35514 . unitaDiPersonaleInterno:MATRICOLA8882 pubblicazioni:autoreCNRDi prodotto:ID35514 . @prefix rdf: . @prefix retescientifica: . prodotto:ID35514 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID35514 rdfs:label "Synthesis of SnO2 and ZnO colloidal nanocrystals from the decomposition of tin(II) 2-ethylhexanoate and zinc(II) 2-ethylhexanoate (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID35514 pubblicazioni:anno "2005-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID35514 skos:altLabel "
Epifani M., Arbiol J., Diaz R., Peralvarez M.J., Siciliano P., Morante J.R. (2005)
Synthesis of SnO2 and ZnO colloidal nanocrystals from the decomposition of tin(II) 2-ethylhexanoate and zinc(II) 2-ethylhexanoate
in Chemistry of materials
"^^rdf:HTML ; pubblicazioni:autori "Epifani M., Arbiol J., Diaz R., Peralvarez M.J., Siciliano P., Morante J.R."^^xsd:string ; pubblicazioni:paginaInizio "6468"^^xsd:string ; pubblicazioni:paginaFine "6472"^^xsd:string ; pubblicazioni:numeroVolume "17"^^xsd:string . @prefix ns10: . prodotto:ID35514 pubblicazioni:rivista ns10:ID506332 ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "CNR IMM, Sez Lecce, I-73100 Lecce, Italy; Univ Barcelona, Dept Elect, E-08028 Barcelona, Spain"^^xsd:string ; pubblicazioni:titolo "Synthesis of SnO2 and ZnO colloidal nanocrystals from the decomposition of tin(II) 2-ethylhexanoate and zinc(II) 2-ethylhexanoate"^^xsd:string ; prodottidellaricerca:abstract "We report for the first time the nonhydrolytic synthesis of soluble SnO2 nanocrystals, by the decomposition at temperatures between 230 and 250 degrees C of tin(II) 2-ethylhexanoate in diphenyl ether and in the presence of amines as surface capping agents. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) studies showed that highly crystalline nanoparticles were obtained with a mean size ranging from about 3 to about 3.5 nm, depending on the length of the alkyl chain of the amine. The use of metal 2-ethylhexanoate in the synthesis of oxide nanocrystals was generalized by preparing ZnO nanocrystals from the decomposition under similar conditions of zinc(II) 2-ethylhexanoate. In this case, soluble nanocrystals with a size ranging from about 5 to 8 nm were obtained. It is shown that the decomposition path of the precursor depends on the specific metal, and may result in the sudden formation of pyrolized products instead of soluble nanocrystals. The optical properties of capped SnO2 nanocrystals are reported for the first time and are characterized by only a blue luminescence, while for the ZnO colloids the photoluminescence spectra are characterized by the typical band-edge and surface defects emission bands, but in these samples the latter band is unusually much weaker than the former."@en ; prodottidellaricerca:prodottoDi istituto:CDS057 ; pubblicazioni:autoreCNR unitaDiPersonaleInterno:MATRICOLA8882 , unitaDiPersonaleInterno:MATRICOLA19935 . ns10:ID506332 pubblicazioni:rivistaDi prodotto:ID35514 .