Search academic texts

Information × Registration Number 0222U003408, 0119U100316 , R & D reports Title Crystal-chemical design and functional properties of new complex oxide compounds and hybrid nanostructures on their basis. popup.stage_title Head Slobodyanik Nikolay S., Доктор хімічних наук Registration Date 20-03-2022 Organization Taras Shevchenko National University of Kyiv popup.description2 Object of research: complex oxide compounds based on variously charged anions (phosphates, vanadates, molybdates), compounds and isomorphically substituted phases with a layered perovskite-like structure, suitable for the development of functional materials for various purposes. Purpose: to synthesize new complex oxide compounds, to study their structure and luminescent, optical, conductive and other properties, as well as mechanical characteristics and antimicrobial activity of calcium phosphates and hybrid nanostructures based on them. Research methods: elemental and X-ray diffraction analyzes, methods of powder radiography, IR and electron spectroscopy, thermogravimetric method and research of antimicrobial and mechanical properties of synthesized compounds. The formation conditions were found and a number of new oxide compounds of different structural types based on differently charged anions were synthesized: MI 0.5xBi1-0.5x (MoxV1-x) O4 and MII xBi (1-x) MoxV (1-x) O4 (x = 0.1 -0.9) (MI - Na, K, MII - Ca, Sr), Na3.5MII 0.5Fe1.5 (PO4) 3 (NZP type), Sr9Bi (PO4) 7-x (VO4) x, KSrFe2 PO4) 3-x (VO4), MI xNa2-xCo2Fe (PO4) 3 (MI - Li, K), R1-xCaxVO4-δ (La, Eu 0  x  0.2), as well as compounds and isomorphically substituted phases with layered perovskite-like structure: AIILa1-xLnI xInO4 (AII = Sr, Ba, LnI = Nd, Sm), Sr1- xCaxLaBIIIO4 (BIII = Sc, In), SrNdSc1-xInxO4, Sr2-xLnxTi1-xInxO4, Ln = , Sr2-xLnxSn1-xB III xO4 (Ln = La, Pr, Nd, BIII = Sc, In), as well as cuprates (Y3Ba5Cu8O18,3) and manganites by secondary induction heating, which allowed to achieve stoichiometry and improve the quality of ceramics with control . Features of structure and functional properties of compounds are investigated. Product Description popup.authors Voytenko Tetyana A. Dziazko Oleksandr G. Zelenko Mykola A. Prylutska Svitlana V. Sliva Tetiana Yu. Strutynska Nataliia Yu. Titov Yuriy О. Terebilenko Kateryna V. Fesych Igor V. popup.nrat_date 2022-03-20 Close