6533b822fe1ef96bd127d8fc
RESEARCH PRODUCT
Synthesis of Yb nanoparticles by laser ablation of ytterbium target in sodium bis(2-ethylhexyl)sulfosuccinate reverse micellar solution
Vincenzo Turco LiveriDomenico LombardoAngela RuggirelloPietro CalandraSebastiano TrussoFortunato Nerisubject
YtterbiumRaman spectroscopy Plasmons corrosion inhibitionLaser ablationMaterials scienceMechanical EngineeringAnalytical chemistryInfrared spectroscopyNanoparticlechemistry.chemical_elementCondensed Matter PhysicsLaser ablation synthesis in solutionLaser ablationNanomaterialsAdsorptionNanomaterials Laser ablation Reverse micelles Surfactant YtterbiumchemistryX-ray photoelectron spectroscopyMechanics of MaterialsSurfactantGeneral Materials ScienceYtterbiumNanomaterialsReverse micellesdescription
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 UV–Vis 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-03-01 |