Photonic and Electronic Properties of Fluoride Materials, the first volume in the new Elsevier series Progress in Fluorine Science, provides an overview of the important optical, magnetic, and non-linear properties of fluoride materials. Beginning with a brief review of relevant synthesis methods from single crystals to nanopowders, this volume offers valuable insight for inorganic chemistry and materials science researchers. One of the chapters which describes structural, magnetic and electronic properties of silver(II) fluoride was contributed by a member of program group Zoran Mazej as one of the co-authors.
D.11 Other
COBISS.SI-ID: 29374247Nanostructured inorganic fluorides are a relatively new class of nanomaterials, i.e. broader research of these fluorides commenced approximately 15 years ago. Since then, research in this field resulted in the preparation of a variety of fluoride-based nanostructured materials with unprecedented characteristics. These achievements are closely connected with the development of novel synthetic approaches that allow a better control of the key nanoscopic features of the fluorides formed. Earlier, our contribution to this field was the development of an alternative and completely inorganic route to fluorides with unconventionally high surface areas (HS-fluorides). More recently, we developed a modified solvothermal methodology in non-aqueous media for the preparation of very porous AlF3-based materials. This approach allowed, for the first time, a direct preparation of extremely voluminous AlF3-based aerogels. For both types of fluoride materials, the uncommon characteristics of the underlying fluorides can be associated with their distinctive nanostructure. Invited presentation gave a brief overview of the related preparation methodologies. Focus was on the solvothermal approach that proved to be highly versatile and allows the preparation of fluorides with variable porosity, i.e. in the form of compact xerogels, weakly agglomerated powders or voluminous aerogels. As determined, bulk structure of the AlF3-based products strongly depends on the shape, size and spatial arrangement of the primary nanoparticles. These characteristics of fluoride nanoparticles can be effectively controlled by a proper combination of solvent(s) and temperature regimes applied throughout the preparation. Under optimal conditions, this procedure allows the preparation of regularly shaped and uniformly sized fluoride nanoparticles.
B.04 Guest lecture
COBISS.SI-ID: 29673255The present invention relates to a process for the electrochemical synthesis of the silver(II) salts of high purity, to the method of synthesis of silver(II) hydrates of high purity, to the products produced by these methods, and also to the use of the silver(II) compounds thus obtained to modify the molecular structures of organic compounds, comprising isomerization processes (including cyclization and ring opening) dehydrogenation (including aromatization), cracking (breaking of C-C bonds) and coupling (formation of C-C bonds) of the molecules of organic compounds, allowing their processing in the simple synthesis of the type one-pot (i.e., direct one-step synthesis). In some cases, modification reactions of organic compounds occur simultaneously or sequentially, resulting in many new products.
F.09 Development of a new technological process or technology
COBISS.SI-ID: 29791015For a number of years fluorine has been used for the treatment and prevention of dental caries. The optimal intake of fluoride ion from all sources that should assure optimal protection against dental caries is achieved, without excessive intake resulting in the appearance of unwanted adverse effects is set at 0.05 mg/kg body weight/day for all ages greater than 6 months. Unfortunately already at these and even lower intakes appearance of dental fluorosis, which is on the one hand considered as cosmetic and, on the other, as having an adverse effect, has been observed. The fluorine as an element was presented. The emphasis has been put on its ionic form, fluoride ion (Fâ), which has a significant role on the dental health. Reasons for the adequate intake and against it were reviewed and discussed. We presented our research in which daily intake of fluorine from diet and the release of fluoride from tea were studied. These studies are of importance because tea (Camellia sinensis L) contains fluorine, which is easily released during infusion in the form of Fâ and contributes significantly to the total daily intake of fluorine. Our research in the field of thermodynamics and thermochemistry, which are of assistance in explaining chemical processes were reviewed. Cooperation with the industry and school of experimental chemistry were mentioned.
D.11 Other
COBISS.SI-ID: 29935143We proposed a new method for integrated evaluation and management of the change proposals in industrial organizations subject of major accident hazards. The changes are usually complex and usually involve both technical and organizational aspects. This method includes the consideration of applicable management levels within the organization and follows a business process redesign model. A change is evaluated for its impacts and interactions between various management levels (using a set of checklists) and accordingly, planning actions are prepared for implementation, validation and monitoring. The method was subject to testing and validation by two industrial organizations via ex-post re-assessments of three recent changes. The proposed method was found detailed, effective, useful and transparent by the plant managers involved.
F.04 Increase of the technological level
COBISS.SI-ID: 29641767