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Boreskov Institute of Catalysis of the Siberian Branch of Russian ...

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OP-II-1CHEMICAL NANOREACTORS AS BASE FOR NOVELTECHNOLOGY(IES) OF NANOMATERIALSRazumov V.F.<strong>Institute</strong> <strong>of</strong> Problems <strong>of</strong> Chemical Physics RAS, Chernogolovka, RussiaRapid development <strong>of</strong> nanotechnologies causes demand for development <strong>of</strong> newtechnological approaches for production <strong>of</strong> nanostructured materials.The traditional approach for creation <strong>of</strong> ultradisperse materials includes two stages:dispersion <strong>of</strong> substance and consolidation <strong>of</strong> disperse (or ultradisperse) powder.The most progressive method <strong>of</strong> dispersion in chemical technology is masscrystallization, and <strong>the</strong> most widespread ways <strong>of</strong> consolidation are sintering or pressing.This approach is well developed and successfully applied in production <strong>of</strong> materials, as arule, <strong>the</strong> constructional materials with degree <strong>of</strong> dispersion more than 0.1 microns.Direct application <strong>of</strong> this approach for preparation <strong>of</strong> nanomaterials with a dispersiondegree in <strong>the</strong> range <strong>of</strong> 1 - 100 nanometers causes significant difficulties.In this report scientific bases <strong>of</strong> technological processes for syn<strong>the</strong>sis <strong>of</strong> functionalnanomaterials with <strong>the</strong> characteristic degree <strong>of</strong> dispersion in <strong>the</strong> range <strong>of</strong> 1 −10 nanometersare analyzed in detail.This approach includes two basic stages: colloid syn<strong>the</strong>sis <strong>of</strong> nanoparticles and <strong>the</strong>ir selfassembly.The main advantage <strong>of</strong> colloid syn<strong>the</strong>sis is that it allows to receive nanoparticles <strong>of</strong> <strong>the</strong>defined shape and with very narrow size distribution.It is reached by application <strong>of</strong> some techniques, including chemical nanoreactors whichallow to control nanoparticle shape and sizes.Basic techniques <strong>of</strong> nanoparticle self-assembly are considered. An opportunity to receive<strong>the</strong> nanoparticles <strong>of</strong> <strong>the</strong> defined size and shape is very important at programmed selfassembly.76

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