English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/16053
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Ceramic particles obtained using W/O nano-emulsions as reaction media

AuthorsPorras, M.; Martínez, A.; Solans, Conxita ; González, Carlos ; Gutiérrez, José M.
KeywordsSpan/tween
W/O nano-emulsion
Non-ionic surfactant mixture
SiO2 nanoparticles
TiO2 nanoparticles
Issue Date18-Jul-2005
PublisherElsevier
CitationColloids and Surfaces A: Physicochemical and Engineering Aspects 270-271: 189-194 (2005)
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.
Description6 pages, 7 figures.-- Printed version published Dec 1, 2005.
Publisher version (URL)http://dx.doi.org/10.1016/j.colsurfa.2005.06.018
URIhttp://hdl.handle.net/10261/16053
DOI10.1016/j.colsurfa.2005.06.018
ISSN0927-7757
Appears in Collections:(IQAC) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.