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Synthesis and investigation of organofluorosilicate and organofluorogermanate species

Author(s): Jan Gnidovec (Author), Gašper Tavčar (Supervisor)

Year: 2025

Type: Doctoral dissertation

Fluorine, though abundant on Earth, is not readily available in a form suitable for organic synthesis. While fluoride salts like fluorite exist, they have limited reactivity due to solubility properties. Converting fluorite to hydrofluoric acid (HF) or fluorine gas (F2) increases reactivity but introduces significant safety concerns due to the …

Diagnosis and prognosis of solid oxide cell systems: a statistical approach

Author(s): Luka Žnidarič (Author), Đani Juričić (Supervisor)

Year: 2024

Type: Doctoral dissertation

Hydrogen is a promising energy carrier in the emerging green energy landscape. It is environmentally friendly, transportable, and storable. The Solid Oxide Cell (SOC) system is a complex technology that enables the bidirectional conversion of hydrogen to energy. The label SOC entails solid oxide fuel cell (SOFC) systems, which produce …

Assessment of dimethyl sulphide odorous emissions released during the underground coal extraction in coal mine Velenje

Author(s): Gregor Uranjek (Author), Jože Kotnik (Supervisor), Radmila Milačič (Co-Supervisor)

Year: 2024

Type: Doctoral dissertation

Underground coal extraction at Coal Mine Velenje occasionally gives rise to odour complaints from local residents and irritates and disturbs the miners at work in the mine. This work describes a robust quantification of odorous emissions of mine sources and a model-based analysis aimed to establish a better understanding of …

ǂA ǂdecision-support system for the design of a green-hydrogen production system in a hydropower plant

Author(s): David Jure Jovan (Author), Gregor Dolanc (Supervisor)

Year: 2024

Type: Doctoral dissertation

This dissertation combines academic research and the application of its results to a real benchmark process. With the emerging electro-energetic systems that have a large share of renewable sources, hydrogen is becoming an important energy carrier that contributes to the storage and usage of surplus green energy and thus reduces …

Hidrothermal topochemical conversion of Bi4Ti3O12 nanoplatelets for formation of functional heterostructural perovskite titanates

Author(s): Alja Čontala (Author), Marjeta Maček Kržmanc (Supervisor)

Year: 2023

Type: Doctoral dissertation

In the view of designing new nanostructured materials and tailoring their functional properties, understanding the nucleation and crystal growth mechanisms is becoming increasingly important. Nowadays, one of the most addressed scientific and social problems are those facing energy shortage and global warming. People started to realize the value and importance …

Development of sensitive electrochemical sensor for detection of gaseous H2O2

Author(s): Jelena Isailović (Author), Samo B. Hočevar (Supervisor)

Year: 2023

Type: Doctoral dissertation

In recent decades, hydrogen peroxide (H 2 O 2 ) has attracted considerable attention as a n omnipresent analyte, finding applications in clinical studies/diagnos is , biology, environmental protection, atmospheric studies, homeland security, and various analytical methodologies . This dissertation provides valuable insights into three different types of electrochemical sensors …

Interactions of azole molecules with copper ions and copper surfaces covered with chemisorbed H, O, Oh or Cl

Author(s): Matjaž Dlouhy (Author), Anton Kokalj (Supervisor)

Year: 2023

Type: Doctoral dissertation

In real environments, copper and other metal surfaces are never clean. Even during active dissolution in corrosion, they are likely to be covered with adsorbed corrosion-relevant species such as O, OH, H, and Cl. To explore the impact of such species on the bonding of imidazole, used herein as an …

Nanocomposites as electrocatalysts for the use in fuel cell and electrolyzer reactions

Author(s): Léonard Jean Moriau (Author), Nejc Hodnik (Supervisor)

Year: 2023

Type: Doctoral dissertation

Electrochemical energy conversion devices such as fuel cells (FCs) and water electrolyzers (WE) have attracted attention from the scientific community for their unique ability to store electrical energy in the form of hydrogen and then generate electricity by the reverse process. Unfortunately, those devices rely on a significant amount of …

Discrete aluminium compounds – towards a soluble aluminium trifluoride

Author(s): Evelin Gruden (Author), Gašper Tavčar (Supervisor)

Year: 2022

Type: Doctoral dissertation

In the past, the search for soluble aluminium trifluoride (AlF3) led to the discovery of organoaluminium compounds (AlR3) and organoaluminium fluorides. However, suitable methods for the introduction of fluorine into AlR3 are still scarce, making the discrete AlF3 and organoaluminium fluoride compounds rare. Our investigation of the reactivity of cyclic …

Alkali-activated steel slag-based materials

Author(s): Mark Češnovar (Author), Vilma Ducman (Supervisor), Srečo Davor Škapin (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Alkali activation is a chemical process in which aluminosilicate-rich materials that dissolve in basic media at room temperature form binding phases by polycondensation. Alkali-activated materials (AAM), also called geopolymers, are inorganic aluminosilicate-based materials produced mainly from fly ashes and metallurgical slags or clays with high Al and Si content and …