Journal ArticleDOI
Ultrafine Metal Particle Formation in Reverse Micellar Systems: Effects of Intermicellar Exchange on the Formation of Particles
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In this paper, a modeling approach is developed to account for the important effects of intermicellar exchange on the ultrafine particle formation in reverse micelles, and a set of fusion−fission schemes are specifically proposed and used for modeling inter-miceLLar metal exchange.Abstract:
A modeling approach is developed to account for the important effects of intermicellar exchange on the ultrafine particle formation in reverse micelles. A set of fusion−fission schemes is specifically proposed and used for modeling intermicellar metal exchange. The dynamic effects largely differing in their time scales are decoupled using a two-staged approach. Growth of metal particles is simulated to occur through intramicellar attachment of free metal atoms from an instantaneous reduction reaction and as well as by transfer and attachment through intermicellar exchange. Simulation results predict increase in particle size with aqueous core size and total aqueous phase volume, increase in particle number density with surfactant concentration at fixed aqueous phase to surfactant molar ratio, a minimum in average particle size as a function of salt concentration, and increase in particle size polydispersity with salt concentration and aqueous core size. Low values of the order of 10-1 are found for the nu...read more
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Journal ArticleDOI
Recent advances in nanoparticle synthesis with reversed micelles.
TL;DR: The ability to synthesise nanoparticles in water/supercritical fluid microemulsions was realised and this method promises to be a highly useful route for controlled nanoparticle synthesis due to the added control variables afforded by tuneability of the solvent quality through pressure and temperature.
Journal ArticleDOI
Microemulsion method: A novel route to synthesize organic and inorganic nanomaterials
TL;DR: In this paper, the use of microemulsions for synthesizing and controlling the grain size and morphology of the nanoparticles and at the same time summarize some recent works carried out in the synthesis of organic and inorganic nanoparticles by this method.
Journal ArticleDOI
Effects of Intermicellar Exchange Rate on the Formation of Silver Nanoparticles in Reverse Microemulsions of AOT
TL;DR: In this paper, the effects of intermicellar exchange rate on absorption spectra and particle size of silver nanoparticles synthesized in reverse micelles of AOT are reported.
Journal ArticleDOI
Synthesis of materials within reverse micelles
Vuk Uskoković,Miha Drofenik +1 more
TL;DR: In this paper, the major achievements from the field of materials synthesis within reverse micelles since the first such synthesis was performed in 1982 until today, to possibly open up new perspectives of viewing the typical problems that nowadays dominate the field, and to hopefully initiate the observation and generation of their actual solutions.
Journal ArticleDOI
Formation of TiO2 Nanoparticles in Reverse Micelles and Their Deposition as Thin Films on Glass Substrates
TL;DR: In this article, low-water content reverse micelles have been formed in cyclohexane employing Triton X-100 or AOT (bis(2-ethylhexyl) sulfosuccinate sodium (salt) as the surfactant.
References
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Journal ArticleDOI
Reverse micelles as microreactors
TL;DR: In this article, it is shown that reverse micelles can be used as microreactors to produce either well-defined nanosized crystallites or chemically modified enzymes, and some prospective aspects of the use of such water-in-oil droplets are discussed.
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Inverted micelles and microemulsions in the ternary system water/aerosol-OT/isooctane as studied by photon correlation spectroscopy
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The preparation of monodisperse colloidal metal particles from microemulsions
TL;DR: In this paper, the reduction of metal salts which are dissolved in the water pools of microemulsions with hydrogen or hydrazine has been used to produce modispere particles.
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In situ synthesis of silver nanocluster in AOT reverse micelles
TL;DR: In this paper, a functionalized surfactant, silver sulfosuccinate (Ag(AOT)), a reactant, was used to obtain a high concentration of monodisperse and stable nanosize particles even in the presence of air.