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Information × Registration Number 0224U033584, (0122U000440) , R & D reports Title Fullerenes, toroidal elemental clusters and bimetallic coordination compounds in radical oxidation reactions of organic matter popup.stage_title Механізми дії багатошарових фулеренів, тороїдальних елементоорганічних кластерів та біметалічних координаційних сполук в реакціях окиснення органічних речовин. Head Polunkin Yevhen V., к.х.н. Registration Date 31-12-2024 Organization V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the National Academy of Sciences of Ukraine popup.description1 Development of new highly effective inhibitors of oxidation of organic compounds of catalytic action by synthesis of new binuclear coordination compounds, multilayer fullerenes and toroidal elemental clusters with their subsequent selection by constants of efficiency of inhibition of oxidation rate of organic compounds in model reactions popup.description2 The current state of research in the field of kinetics of deep oxidation of liquid substances by molecular oxygen is considered. The absence of consistent views in the scientific literature regarding the mechanism of influence of ultra-low doses of nanoparticles on the energy yield of energy materials during deep oxidation and combustion is noted. Laboratory samples of carbon spheroidal nanoclusters, toroidal nanosized polyoxomolybdates and metal complex compounds with different ligand environments are synthesized. The impact of selected compounds on the kinetics of the initial stages of oxidation of liquid organic substrates is assessed, and the possibility of inversion of the action of additives on the oxidation of liquids depending on their concentration is shown. The dependence of the antioxidant and antiwear properties of chelated copper compounds with fluorine-containing ligands on the structure of these metal complexes is investigated. The prospects of using such compounds at ultra-low concentrations(10-3wt.%)as multifunctional additives to alcohol-containing motor fuels are shown. The dual mechanism of the influence of carbon spherical nanoclusters additives on the antiwear properties of liquid motor fuels is revealed and explained. A phenomenological model of the mechanism of action of ultra-small amounts of nano-sized additives during deep oxidation and combustion of liquid motor fuels has been developed. The idea of the proposed model is based on a change in the supramolecular structure of the initial polar oxidation products in solutions under the influence of nanoparticles - from a spatial continuous network of hydrogen bonds to local domain clusters. It has been shown that such a change in the supramolecular structure facilitates the diffusion and evaporation of fuel molecules from the liquid phase to the adjacent reaction gas region. The optimal range of concentrations of carbon nanoparticle additives in the composition of fuels for maximum energy eff Product Description popup.authors Vynohradov Andrii S. Kamenieva Tetiana M. Kotvytskyi Denys V. Pyliavskyi Volodymyr S. Starzhynska Liudmyla І. popup.nrat_date 2024-12-31 Close