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Optimization of ToF-SIMS depth profiling in low-pressure H2, C2H2, CO and O2 atmosphere

Author(s): Jernej Ekar (Author), Janez Kovač (Supervisor)

Year: 2024

Type: Doctoral dissertation

Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a versatile analytical method widely used in the field of surface science and thin films. Although it gives elemental, molecular, and isotopic information, it has a very low detection limit and high lateral resolution, is fast and works with all the vacuum-compatible samples, …

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 …

Assessment of individual-level exposure to air pollutants using personal monitoring

Author(s): Rok Novak (Author), David Kocman (Supervisor)

Year: 2023

Type: Doctoral dissertation

A paradigm shift is occurring in the assessment of exposure to urban environmental stressors. Improved accuracy of personal monitors has enabled researchers to study exposure at the individual level. Monitoring stations are the primary reference point for air quality in urban environments, although there is a need to assess exposure …

Licit and illicit drugs in waste- and environmental waters: epidemiological and environmental implications

Author(s): Taja Verovšek (Author), Ester Heath (Supervisor)

Year: 2023

Type: Doctoral dissertation

The analysis of drug residues in waste and environmental waters offers valuable insights into the epidemiological and environmental implications of drug use. This study employs a wastewater-based epidemiology (WBE) approach to estimate the use of licit and illicit drugs and new psychoactive substances (NPS) among both general and specific populations. …

Crystal structure and phase transformations in 1D nanostructures

Author(s): Martin Košiček (Author), Uroš Cvelbar (Supervisor), Janez Zavašnik (Co-Supervisor), Uroš Puc (Co-Supervisor)

Year: 2023

Type: Doctoral dissertation

Metal oxide and sulfide nanostructures are a versatile family of materials with wide-ranging applications, and their development remains ongoing. In nanoscience, attention is being directed towards their synthesis and further advancement, including the creating of new complex structures and morphologies. In this regard, ion-exchange reactions have emerged as a cutting-edge …

Development and employment of untargeted and targeted tools for virus detection in the frame of water-based epidemiology

Author(s): Olivera Maksimović (Author), Jon Gutiérrez-Aguirre (Supervisor), Denis Kutnjak (Co-Supervisor)

Year: 2023

Type: Doctoral dissertation

Traditional methods of studying viruses are limited in their ability to detect novel pathogens, but recent advances in high-throughput sequencing (HTS) are changing that. HTS allows researchers to probe deeply into the virome of various hosts and environments, identifying known and unknown viral species. However, a targeted approach, like quantitative …

Surface modifications of cellulose nanomaterials: mechanisms, kinetics and their applications

Author(s): Ana Oberlintner (Author), Uroš Novak (Supervisor), Blaž Likozar (Co-Supervisor)

Year: 2023

Type: Doctoral dissertation

Synthesized in green plants, cellulose is the most abundant natural biopolymer on the planet and is thus widely available, cheap and renewable. Furthermore, its hierarchical structure allows extraction of nanosized particles in the form of cellulose nanocrystals (CNCs), obtained with hydrolysis or cellulose nanofibrils (CNFs), isolated through chemical, biological pretreatment …

Investigation of the environmental acceptability of geotechnical composites, made from different recycled materials investigation of the environmental acceptability of geotechnical composites, made from different recycled materials

Author(s): Marija Đurić (Author), Janez Ščančar (Supervisor), Ana Mladenovič (Co-Supervisor)

Year: 2023

Type: Doctoral dissertation

Current and especially past industrial and mining activities, including underground and open pit mining, have often resulted in soil pollution that has become a global and alarming environmental problem. Among contaminants, heavy metals and metalloids are under environmental scrutiny due to their potential toxicity, persistence, and because they can be …

Use of hydrated glass for synthesis of waste-based foamed glass

Author(s): Uroš Hribar (Author), Jakob König (Supervisor)

Year: 2023

Type: Doctoral dissertation

Thermal insulation materials have a strong impact on energy efficiency of buildings which are one of the main energy consumers in the EU. Thermal insulation materials are widely used and improving their properties or improving their production can therefore have a rapid impact on the efficient use of energy in …

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 …