The technology is environmentally friendly, allows to obtain nanoparticles of different chemical compounds (metals, alloys, oxides, chalcogenides, etc.) and with high reliability to control their composition, structure and geometric characteristics. The advantage of this technology is the possibility of obtaining of the nanopowders with controlled composition, size and shape of particles with a low degree of agglomeration.

The main stages of the technological process are: amorphous precipitate precursor obtaining by the method of the chemical co-precipitation from aqueous solutions, its drying and crystallization in low-temperature annealing at temperatures up to 1000 ÷ 1100 °C. The developed technology allows to obtain monodimensional particles already at the stage of the amorphous precursor formation or by traditional methods – to obtain the polydisperse amorphous sediment and, if necessary, to separate from it the fraction with a narrow particle distribution on sizes by the methods of ultracentrifugation and/or sedimentation.








The technology for obtaining low-agglomerated nanopowders from the particles of the different morphology (monodimensional spherical and combined particles with "core/shell” structure, isometric particles with low dispersion on sizes) was settled and it is based on:

• Lu₂O₃, (Lu_1-XEu_X)₂O₃, Y₂O₃, (Y_1-XNd_X)₂O₃ rare-earth oxides;
• Y₃Al₅O₁₂, (Y_1-X)₃Nd_XAl₅O₁₂ refractory oxides;
• the particles with "SiO₂ core/Lu₂O₃, (Lu_1-XEu_X)₂O₃ shell” structure;
• the particles with "SiO₂ core/ZnO, PbS, Au, Pt, Pd shell” structure.

The stable sols of Au, Pt, Pd noble metals have been obtained. The methods of stabilization of the nanocrystals of this metal for prevention of their agglomeration in the forming of mono-and multilayers on different substrates.

Traditional and perspective fields of nanoparticles and nanopowders applications:

• raw materials for chemical industry, glass and glassceramics production, abrasive wear-resistant materials;
• structure-forming additives for metals and alloys hardening;
• components for obtaining of superhard, high temperature, wear-resistant, homogeneous and inert ceramics;
• raw materials for obtaining of optical ceramics (laser, scintillation, luminescence);
• photonics, plasmonics, sensorics, catalysis, and medicine.