National Repository of Grey Literature 8 records found  Search took 0.01 seconds. 
Nanoparticle Formation by Thermal Decomposition and Oxidation of Manganese(II) Acetylacetonate
Moravec, Pavel ; Smolík, Jiří ; Bakardjieva, Snejana ; Levdansky, V.V.
Over the last decade, Mn and MnOx nanoparticles has been extensively investigated due to their great importance in catalysis, electrochemistry, ion exchange materials, batteries and other areas (Si et al., 2005; Han et al., 2006). This work describes preliminary experiments producing manganese nanoparticles by metal organic chemical vapor deposition (MOCVD) using manganese(II) acetylacetonate (MnAA) as a precursor.
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Plný tet: SKMBT_C22012102615333 - Download fulltextPDF
Generation of Binary COOx/SiO2 Nanoparticles from Organocompound Precursors
Moravec, Pavel ; Smolík, Jiří ; Bakardjieva, Snejana ; Levdansky, V.V.
In recent years cobalt and cobalt oxide nanoparticles have attracted substantial research effort because of their potential applications such as protective materials, catalysts, magnetic data recorders, batteries and gas sensors (Jang et al., 2004). To improve their functionality and biocompatibility nanoparticles are frequently coated with SiO2 (Teleki et al., 2008). In this work, we studied CoOx-SiO2 binary nanoparticles synthesis by metal organics chemical vapor deposition (MOCVD) using organo-compound precursors cobalt acetylacetonate (CoAA) and tetraethyl orthosilicate (TEOS).
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Preparation of Nanoparticles by Pyrolysis and Oxidation of Cobalt Acetylacetonate
Moravec, Pavel ; Smolík, Jiří ; Levdansky, V.V. ; Bakardjieva, Snejana
The aim of this work was to study cobalt and cobalt oxide nanoparticle synthesis by metal organic chemical vapor deposition (MOCVD) using cobalt acetylacetatone (CoAA) as a precursor.
Impurity Concentration in Aerosol Particles Growing by Vapor Condensation
Levdansky, V.V. ; Smolík, Jiří ; Ždímal, Vladimír ; Moravec, Pavel
The dependence of impurity concentration in growing aerosol particle on the density of the resulting flux of vapor molecules into the particle (and accordingly on the particle growth rate) is studied theoretically. It is shown that the trapping of impurity molecules by growing particle takes place in the case of inequality to zero of the sticking coefficient of impurity molecules.
Velikostní efekty při koalescenci nanorozměrných aerosolových částic
Levdansky, V.V. ; Smolík, Jiří ; Moravec, Pavel
The size effects in coalescence of nanoparticles related to the influence of the particle size on the surface tension, the activation energy for diffusion of atoms in particles and the sticking probability of particles were considered.
Vliv velikostního efektu, rezonančního záření a povrchových procesů na kritický průměr aerosolových částic
Levdansky, V.V. ; Smolík, Jiří ; Moravec, Pavel
The influence of size effect, resonance radiation and surface processes on the critical size of aerosol particles is considered theoretically. The joint effect of an adsorbable foreign gas and a difference in the condensation and evaporation coefficients is discussed.
Příprava nanočástic CuOx z acetylacetonátu měďnatého
Moravec, Pavel ; Smolík, Jiří ; Klementová, Mariana ; Levdansky, V.V.
Copper and copper oxide particles have a wide field of applications as catalysts, sensors, semiconductors, etc. In this work, we studied CuOx nanoparticle synthesis by metal organics chemical vapor deposition (MOCVD) using copper acetylacetonate (CuAA) as a precursor.
Příprava Ni/NiOx nanočástic z acetylacetonátu niklu
Moravec, Pavel ; Smolík, Jiří ; Keskinen, H. ; Mäkelä, J.M. ; Bakardjieva, Snejana ; Levdansky, V.V.
This article deals with preparation of Ni/NiOx nanoparticles from nickel acetylacetonate.

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