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dc.contributor.authorPorras, M.-
dc.contributor.authorMartínez, A.-
dc.contributor.authorSolans, Conxita-
dc.contributor.authorGonzález, Carlos-
dc.contributor.authorGutiérrez, José M.-
dc.date.accessioned2009-08-18T12:28:34Z-
dc.date.available2009-08-18T12:28:34Z-
dc.date.issued2005-07-18-
dc.identifier.citationColloids and Surfaces A: Physicochemical and Engineering Aspects 270-271: 189-194 (2005)en_US
dc.identifier.issn0927-7757-
dc.identifier.urihttp://hdl.handle.net/10261/16053-
dc.description6 pages, 7 figures.-- Printed version published Dec 1, 2005.en_US
dc.description.abstractMonodisperse ceramic particles can be produced from water-in-oil (W/O) nano-emulsions by hydrolysis and condensation of ceramic alkoxides into aqueous droplets, thereby yielding nanoparticles of controlled size and shape. This study addressed both the formation of W/O nano-emulsions and the resultant ceramic particles obtained in reaction media. Nano-emulsions were prepared by adding water or catalyst aqueous solution to a mixture of decane and surfactants. Droplet size was determined by dynamic light scattering, with mean sizes ranging from 30 to 120 nm. Higher water concentrations resulted in larger droplets. Ceramic nanoparticles were prepared by adding ceramic alkoxides in W/O nano-emulsions. Tetraethyl orthosilicate and tetraisopropyl orthotitanate were used to obtain silica and titania nanoparticles, respectively. Ceramic nanoparticles were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and dynamic light scattering (DLS). Particles with average size from 30 to 230 nm were obtained. Particle sizes correlated with droplet sizes of those nano-emulsions were used as reaction media.en_US
dc.format.extent22195 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsclosedAccessen_US
dc.subjectSpan/tweenen_US
dc.subjectW/O nano-emulsionen_US
dc.subjectNon-ionic surfactant mixtureen_US
dc.subjectSiO2 nanoparticlesen_US
dc.subjectTiO2 nanoparticlesen_US
dc.titleCeramic particles obtained using W/O nano-emulsions as reaction mediaen_US
dc.typeartículoen_US
dc.identifier.doi10.1016/j.colsurfa.2005.06.018-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.colsurfa.2005.06.018en_US
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