http://www.cnr.it/ontology/cnr/individuo/prodotto/ID40392
Synthesis of Yb nanoparticles by laser ablation of Yb target in AOT reverse micellar solution (Articolo in rivista)
- Type
- Label
- Synthesis of Yb nanoparticles by laser ablation of Yb target in AOT reverse micellar solution (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Calandra P.; Lombardo D.; Trusso S.; Neri F.; Ruggirello A.; Turco Liveri V.; (literal)
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- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- a) IPCF, Istituto per i Processi Chimico-Fisici - Consiglio Nazionale delle Ricerche - Sez. di Messina, Salita Sperone - C.da Papardo 98158 Faro Superiore (ME), Italy
b) Dipartimento di Fisica della Materia e Ingegneria Elettronica, Università degli Studi di Messina - C.da Papardo - Salita Sperone 98166 S.Agata (ME), Italy
c) Dipartimento di ChimicaFisica, Università degli Studi di Palermo, Viale delle Scienze Parco d'Orleans II, 90128 Palermo, Italy (literal)
- Titolo
- Synthesis of Yb nanoparticles by laser ablation of Yb target in AOT reverse micellar solution (literal)
- Abstract
- Surfactant-coated ytterbium nanoparticles were produced by Nd:YAG laser ablation of a Yb bulk target immersed in sodium bis(2-ethylhexyl)sulfosuccinate (AOT)/n-heptane micellar solution. In our experimental conditions, as highlighted by IR spectroscopy, AOT molecules are not decomposed by the intense laser pulses but play a pivotal role in the stabilisation of Yb nanoparticles. The formation of Yb nanoparticles in the liquid phase was monitored by UVVis spectroscopy whereas the Yb/AOT composites obtained by evaporation of the organic solvent were characterised by XPS and TEM. Data analysis consistently shows the presence of surfactant-coated, nearly spherical and non-interacting Yb nanoparticles of mean diameter of 3 nm. Moreover, the presence of bigger polycrystalline nanoparticles (about 30%) in coexistence with smaller mono crystalline ones indicates that, after the rapid formation of the pristine Yb nanoparticles from plume condensation, two processes effectively compete for their size distribution: nanoparticle agglomeration and surfactant adsorption. (literal)
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