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Information × Registration Number 0211U013130, 0110U003785 , R & D reports Title Low-energy-consuming, controlled synthesis of temporally stable nanopowders of Cu, Zn, Hg ets. oxides and chalkogenides with predetermined particle size and morphology. popup.stage_title Head Pekhnyo Vasyl Ivanovych, Registration Date 27-12-2011 Organization V.I.Vernadskii Institute of General and Inorganic Chemistry NASU popup.description2 Optimal conditions for laboratory methods for the synthesis of promising temporally stable nanomaterials based on binary Cu, Cd, Hg, Zn, Ag oxides and chalcogenides of of predetermined morphology (spheres, rings, plates, needles, treads, films, ets.), structure and particle size have been developed. Starting coordination compounds of Cu, Cd, Hg, Zn, Ag with organic O- and S- containing ligands have been synthesized, and thethermal, chemical and electrochemical behaviour of nanoparticles obtained has been studied in detail with of nanoparticles obtained has been studied in detail with chanding of following synthesis parameters: the nature of the starting substances, reagents and solvents, synthesis temperature and time, change in medium pH and use of modifying agents. To prevent the agglomeration of particles formed, higher alkohols and polyvinyl alcohol as stabilized were added to the reaction media. At 10-100 C and using in some cases ultraviolet radiation and ultrasonic tratment, nanoscale Cu, Cd, Zn, Ag and Hg sulfides have been synthesized by the procedures developed. Optimal conditions for the synthesis of CuO, Ag, Cu2O, ZnO, CdO nanoparticles and methods for solvothermal synthesis of oxides using auxiliary substances (polyvinyl alchogol and aminoacetic acid), which can decrease the cehesion of nanoparticles obtained during synthesis and storage, have been developed. The chanding parameters were the nature of the starting salt, the nature of solvent, temperature and time. The general laws governing the influence of the above synthesis parameters on the yield and qualiative characteristics of the nanomaterials obtained have been established. The optimal synthesis conditions for each individual type of nanoparticles of predetermined morphology (spheres, ring, plates, ets) have been determined; a series of investigations of the main physical and physicochemical properties of the nanomaterials obtained has been carried out. The particle nanosize and morphology of the metal sulfides and oxidws obtained have been confirmed by data of trasmission and scanning electronmicroscopy. Product Description popup.authors Ільницька Олена Людвигівна Бонь Володимир Васильович Дудко Анатолій Вікторович Коваль Людмила Іванівна Орисик Світлана Іванівна popup.nrat_date 2020-04-02 Close