Search Results (24)
Electron microscopy of titanium oxynitride supported iridium based electrocatalysts
We are speeding full throttle towards a climate catastrophe and we have only until 2030 to take action to avoid the most devastating and unimaginable consequences. The lack of political and corporate will to change the status quo of “business as usual” is causing mass protests and civil disobedience globally. …
Low-Pressure Plasma Functionalisation of Fluoropolymers
In the present thesis, the problem of the functionalisation of fluoropolymers was addressed. As chemical methods for the functionalisation of fluoropolymers apply environmentally harmful chemicals, the research was directed to low-pressure non-equilibrium radiofrequency (RF) inductively coupled plasmas of environmentally friendly gasses. The research was focused on polytetrafluoroethylene (PTFE), the most …
Synergistic action of organic inhibitors to mitigate corrosion of aluminium, copper and aluminium-copper alloy in chloride solution
The inhibitory action of organic compounds, 2-mercaptobenzimidazole (MBI), octylphosphonic acid (OPA) and their binary combinations was studied on aluminium, copper and aluminium alloy (AA) 2024 in chloride environments by ex-situ conventional electrochemical methods and surface-analytical techniques. In addition, the influence of pre-treatment of the metal surface and the choice of …
Authenticity and traceability of food and food flavourings using a stable isotope approach
Food fraud or economically motivated adulteration has been an issue throughout history. Even today, it remains a significant and growing problem, driven by globalisation, economic opportunity and the low probability and severity of punishment. Fraud is a concern for food producers, consumers, regulatory agencies and scientific organisations, and food fraud …
Time-efficient method for monitoring electrochemical energy conversion systems
According to the EU’s Green Deal plan, one of the main objectives for the EU is to become a net-zero greenhouse emission society by 2050. Achieving this goal requires advancements across many areas ranging from energy production, conversion, distribution and energy storage where the key role is taken by the …
Characteristics of gaseous plasma in a large low-pressure reactor
The scientific backgrounds of technologies involved in the production of headlamps for the automotive industry are elaborated in this thesis. The experimental work was performed using an industrial plasma reactor with a volume of approximately 5 m3. The reactor enables three different operations, i.e., plasma pretreatment of workpieces made from …
Plasma-enabled design of hybrid carbon nanostructures for energy storage applications
Carbon, one of the most abundant materials in the earth crust, has gained research attention owing to its high structural stability, electrical conductivity, optical and thermal properties. Additionally, the possibility of tailoring carbon materials at nanoscales makes them promising materials for many applications, including energy storage, sensors, biomedical and electronics. …
Iodine(I) compounds: Catalysts for iodination of organic molecules
The use of hydrogen peroxide as enviromentally benign oxidant for the oxidative iodination of organic molecules with iodine in the presence of halide ions as catalysts for the formation of iodine(I) species was investigated. The study of the reaction system iodine/ hydrogen peroxide/ acid revealed the formation of iodine(I) compound …
Spectroscopic characterization of conformations of short alanine peptides, poly-L-lysine and insulin during formation of amyloid fibrils
The process of protein folding describes the transition by which an unordered polypeptide chain attains its functional native three-dimensional structure. A detailed understanding of the principles which govern the protein folding, such as conformational preferences of amino acid residues, the neighbour residue effect and the solvent effects, remains an important …
Organic geochemistry of stratified eutrophic alpine lakes (Lake Bled)
The identification and quantification of organic compounds present in the environment is a major area of application in modern analytical chemistry. However, it is still scarcely recognized that, in addition to the chemical identity and concentration of organic compounds, there is more information to be found about their source and …