Projects

National

Žiadúce a nežiadúce interakcie roztavených fluoridov s materiálmi na báze kritických prvkov
Desirable and undesirable interactions between molten fluorides and materials of critical elements
Program:	VEGA
Project leader:	Ing. Kubíková Blanka, PhD.
Annotation:	The submitted project is focused on the study of desirable and undesirable interactions of molten fluoride systemswith materials based on the selected critical elements, the recycling rate of which is minimal in the EU. In thiscase, controlled physico-chemical processes are considered desirable interactions, in contrast to undesirableinteractions, primarily in connection with the corrosion of construction materials. The research will be focused onthe physicochemical and thermochemical analysis of molten fluorides, the study of solubility/corrosion resistanceof materials in molten salts, the synthesis of new substances, and spectral and diffraction analysis of puresubstances, molten mixtures, and solidified mixtures after experiments.
Duration:	1.1.2024 – 31.12.2027

Fluoridové taveninové systémy pre zelenú výrobu hliníka bez produkcie CO2
Molten fluoride systems for green production of aluminium without CO2 emissions
Program:	VEGA
Project leader:	Ing. Šimko František, PhD.
Annotation:	The proposed project is related to complex phase and physico-chemical analysis of multicomponent nMF-AlF3 systems (M = Na, K, n=3-1.2) with the addition of metal oxides Al, Fe, and Ni where compounds based on Fe and Ni are represented corrosion products from the use of inert anodes in aluminium CO2 less production. These are the so-called low-temperature electrolytes, whose research has recently increased attention related to the development and application of inert anodes. The aim of the project will be to define the solubility of oxides/spinels, the phase composition of the systems and to identify the individual components, arising from the interaction between the corrosion products and the electrolyte. These systems will be studied to determine the relationship between the structure and their physicochemical behavior by using either of spectral methods in-situ in the molten state, or by ex-post analysis of the solidified samples, and by physicochemical analysis of high temperature molten systems.
Duration:	1.1.2022 – 31.12.2025

IRMA – Výskum ternárnych fáz v systémoch M-R-F (kde M – Li-Cs, (NH4); R – Sc, Y, Ln) pre vývoj nových multifunkčných materiálov
Investigation of the ternary phases in the systems M-R-F (where M – Li-Cs, (NH4); R – Sc, Y, Ln) for the development of new multifunctional materials
Program:	SASPRO
Project leader:	Matselko Oksana, PhD.
Annotation:	Lack of the information as well as not completeness of the data prevent the application of the compounds in the development of different types of materials. The search of new compounds with appropriate optical and operational properties is of great interest in the field of solid state fluorine chemistry. The proposed project is focused on the ternary fluorides in the systems M-R-F (where M – Li-Cs, (NH4); R – Sc, Y, Ln) with emphasis on the temperature driven solid-solid state phase transformations and photoluminescent properties of compounds with further establishment of the regularities of the structural transformations and changes in properties depending on the M and R content. The main challenge in such kind of research is that it is hard to predict which compound is capable for such transformations until all experimental data are obtained. To shed more light on this issue synthesis of pure compounds, analysis of their thermodynamic data, solid-solid phase transformations as well as solution of the high temperature crystal structures from the X-ray diffraction data (including synchrotron experiments) and properties measurements are suggested.
Duration:	1.9.2022 – 31.8.2025