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(Doctoral thesis / Doktoravhandling, 2024)
In the global fight against climate change, reducing carbon dioxide emissions stands as a pressing challenge. An impactful solution involves converting CO2 into non-fossil-based chemicals, addressing rising greenhouse gas ...
(Doctoral thesis / Doktoravhandling, 2024)
AB toxins are proteins often used by pathogens as an attack molecule. However, some organisms use them as a defense molecule, when threatened by a predator. This PhD thesis provides insights on the understanding of the ...
(Doctoral thesis / Doktoravhandling, 2024)
Ammonia (NH3) is critical in the production of fertilizers and is one of the main alternatives to substitute fossil marine fuels, however it is a highly polluting gas. We investigated Pt-Rh nanoparticles and thin films as ...
(Doctoral thesis / Doktoravhandling, 2024)
Magnetic refrigeration is being explored as a promising alternative to current cooling methods, but existing magnetocaloric materials face challenges for mass production. This thesis investigates two types of materials: ...
(Doctoral thesis / Doktoravhandling, 2023)
In this work, plasmonic metal nanoparticles (MNPs) are utilized to improve the photoelectrochemical (PEC) response of strontium titanate (STO). These MNPs were introduced by either direct exsolution, i.e., nickel (Ni), ...
(Doctoral thesis / Doktoravhandling, 2023)
The fight between pathogens and their hosts is almost as old as life on earth. Proteins are among the most important weapons used by pathogens and their hosts in the molecular warfare that underlies pathogenesis. This ...
(Doctoral thesis / Doktoravhandling, 2023)
Due to poor access and energy-intensive conversion reactions, large reservoirs of natural gas are underutilized. Natural gas and biogas mainly contain small and stable hydrocarbons (light alkanes) and could be a more ...
(Doctoral thesis / Doktoravhandling, 2023)
Aromatic amino acids are essential building blocks for proteins. Humans lack enzymes that produce aromatic amino acids, thus they must consume them with their diet. In contrast, plants, bacteria and fungi are capable of ...
(Doctoral thesis / Doktoravhandling, 2023)
Hydantoin is an organic framework of considerable chemical and biological interest as it is encountered in several drugs and natural products with biological activity. Access to synthetic tools for synthesis and modification ...
(Doctoral thesis / Doktoravhandling, 2023)
Understanding islet cell biology is important for multiple metabolic diseases, including diabetes and obesity. Stem cell-derived islet organoids (SC-islets) are cell models suitable for closing existing knowledge gaps ...
(Doctoral thesis / Doktoravhandling, 2023)
Laws of physics govern the motion of molecules that constitute all materials, living and non-living, in a highly hierarchical organisation, across tremendous scales of size and time. Molecular dynamics provides a direct ...
(Doctoral thesis / Doktoravhandling, 2023)
Surface water in the Nordic countries, a crucial resource, has been undergoing a noticeable browning trend over recent decades due to increased dissolved organic matter (DOM), originating from microscopic residues of living ...
(Doctoral thesis / Doktoravhandling, 2023)
The present work provides a fundamental and methodological framework for parameterisation of the thermodynamics and kinetics involved in surface protonic conduction of porous ionic oxides. A novel nomenclature for defect ...
(Doctoral thesis / Doktoravhandling, 2023)
Persistent Organic Pollutants (POPs) are chemicals that have harmful impact on human health and the environment. POPs are now regulated but were previously widely used in different applications as additives in products and ...
(Doctoral thesis / Doktoravhandling, 2023)
Solid-state batteries are currently limited by low ionic conductivity compared to the liquid analogue, and improving ionic conductivity is a major concern for commercialization. This thesis focuses on the local structure ...
(Doctoral thesis / Doktoravhandling, 2023)
Within the field of nonlinear optics, nonlinear optical properties are defined as frequency-dependent responses. This definition emerged in the frequency domain, as lasers used in these early experiments emitted monochromatic ...
Vapour-solid interactions for SMSB and asymmetric amplification of pyrimidine and pyridine aldehydes
(Doctoral thesis / Doktoravhandling, 2022)
In the last 25 years, the addition of diisopropylzinc to pyrimidine carbaldehydes, known nowadays as the Soai reaction, has drawn the attention of many research groups, not only as it is to date the only chemical reaction ...
(Doctoral thesis / Doktoravhandling, 2022)
Hybrid particle–field methods couple coarse-grained particles through a density field-based intermolecular potential. This allows for large-scale and computationally efficient simulations of soft-matter systems while ...
(Doctoral thesis / Doktoravhandling, 2022)
Organoids are predicted to change the future of medicine by acting as an in vitro 3D representation of human organ functionality. Organoids are grown from patient derived stem cells or adult tissue, which promise to enable ...
(Doctoral thesis / Doktoravhandling, 2022)
A range of chemicals which are potentially harmful to human health and the environment are used in industrial and consumer products including electronics. Some of these chemicals have physicochemical properties which may ...
(Doctoral thesis / Doktoravhandling, 2022)
Coupled-cluster (CC) theory, often referred to as the gold standard of quantum chemistry, defines a convergent hierarchy of increasingly accurate methods for the description of molecular properties. The same hierarchy of ...
(Doctoral thesis / Doktoravhandling, 2022)
In this thesis, copper complexes bearing bidentate, tridentate, and tetradentate N-ligands were synthesised and characterised. The ligands’ design draws inspiration from the histidine copper brace, a structural motif found ...
Platinum Catchment by Noble Metal Alloys and structural studies of Pt- and Rh-containing perovskites
(Doctoral thesis / Doktoravhandling, 2022)
One of the steps in the production of synthetic nitrogen-based fertilizers is the oxidation of ammonia (NH3) to nitric oxide (NO). In this reaction, Pt/Rh (95/5 wt. %) is used as a catalyst and a significant Pt-loss occurs ...
(Doctoral thesis / Doktoravhandling, 2021)
Hydrogen will play a key role in a zero-emission society, and proton (H+) conducting oxides have gained interest as solid-state electrolytes for next-generation electrochemical devices for fuel cells and electrolyzers. ...
(Doctoral thesis / Doktoravhandling, 2021)
Direct print of 3D nanomaterials could be an advantageous way to obtain nanostructures to be applied in sensing and electronic components production. In this work, the full pathway of production of 3D nanostructures of ...
(Doctoral thesis / Doktoravhandling, 2021)
Quantum Chemistry constitutes an extensive framework for accurately simulating the electronic wavefunction of atoms and molecules. The same framework may in principle be applied to the domain of periodic structures such ...
(Doctoral thesis / Doktoravhandling, 2021)
Catalytic hydrogenation of amides could be an excellent option for the green atom efficient formation of alcohols and amines. However, the low reactivity of amides has been a big drawback for this reaction. In the last ...
(Doctoral thesis / Doktoravhandling, 2021)
The selective oligomerization of ethene to linear alpha olefins is an attractive method for production of a wide range of key intermediates for the chemical industry. Current industrial processes are predominantly utilizing ...
(Doctoral thesis / Doktoravhandling, 2021)
By enabling formation and development of primitive cells, also known as protocells, solid surfaces might have played an important role in the emergence of life on Earth.
Current theories on how life originated from ...
(Doctoral thesis / Doktoravhandling, 2021)
Thermoelectric materials are able to directly convert heat into electricity, which makes them predestined candidates for the recuperation of waste heat and contributing to a more efficient energy economy. They hold enormous ...
(Doctoral thesis / Doktoravhandling, 2021)
Copper salts are often used to activate the C-H bond of alkynes and to catalyze the cycloaddition of alkynes to azides (CuAAC reaction). While cheap and easily accessible, the copper salts generate many different active ...
(Doctoral thesis / Doktoravhandling, 2021)
How primitive cells emerged and developed on the early Earth remain an unsolved question. In contrast to the hypotheses that the first living cells evolved from a single ancestor, their development as colonies would provide ...
(Doctoral thesis / Doktoravhandling, 2021)
In a circular carbon economy, carbon dioxide (CO2) is recycled and used as a molecular building block to make fuels, chemicals and materials, driven by renewable energy sources. Hence, the molecule represents a potential ...
(Doctoral thesis / Doktoravhandling, 2021)
Silicon solar cells are approaching their maximum theoretical efficiency, but can still be improved by adapting the solar light to match the solar cell. Trough down-conversion, the energy that is above the absorption edge ...
(Doctoral thesis / Doktoravhandling, 2020)
Materials with pores of controlled size and connectivity are of fundamental importance in chemical industry and research. The pores in microporous materials, which have the same dimensions as individual molecules, can be ...
(Doctoral thesis / Doktoravhandling, 2020)
Roughly, three-quarters of the energy produced in the world ends up as waste heat. However, the waste heat can be harvested, stored and reused using specially built heat storage reactors for high- or low-temperature ...
(Doctoral thesis / Doktoravhandling, 2020)
The capture and storage of solar energy in chemical form by a photoelectrochemical (PEC) cell is an elegant and simple solution to the increasing energy demands and needs for chemicals and fuels from non-fossil sources. ...
(Doctoral thesis / Doktoravhandling, 2020)
This dissertation aims at advancing the capability of hybrid particle-field simulations of representing various physical phenomena relevant to biological systems. While hybrid particle-field simulations are computationally ...
(Doctoral thesis / Doktoravhandling, 2020)
The work described in this thesis has focused on total synthesis directed towards two different classes of secondary metabolites isolated from the Agelas sponge, ageloxime D and analogs, and agelasine F. Ageloximes were ...
(Doctoral thesis / Doktoravhandling, 2020)
Antimicrobial peptides (AMPs) are found in Nature as a part of the innate immune system in a wide range of species, including humans. Because of the emerging concern of widespread antibiotic resistance new antibiotics are ...
(Doctoral thesis / Doktoravhandling, 2020)
Self-assembly represents an easy way to create large quantities of various kinds of nanoparticles. Small molecules are “programmed” to self-organize into nanostructures, without external manipulation. These nanostructures ...
(Doctoral thesis / Doktoravhandling, 2020)
The work described in this thesis focused on developing a method to synthesise a variety of organic molecules with imidazophenanthridine or pyrrolophenanthridine ring structures. These are complex structures with previously ...
(Doctoral thesis / Doktoravhandling, 2020)
(Doctoral thesis / Doktoravhandling, 2020)
This thesis investigated the connection between two major global concerns: the infamous cyanobacteria (“blue-green algae”), and the endocrine disruptors, compounds able to interfere with the hormonal system.
Do cyanobacteria ...
(Doctoral thesis / Doktoravhandling, 2020)
Most available literature on molecular systems in magnetic fields are limited to special cases: Either small or highly symmetric species of specific orientation to the field, or fields of low intensity - or combinations ...
(Doctoral thesis / Doktoravhandling, 2020)
This dissertation aims to study methods of speciation and extraction of metals in industrial solutions. the metals studied has low concentration relative to the main product in the industrial solution. The result is species ...
(Doctoral thesis / Doktoravhandling, 2020)
Carbon capture and storage is suggested as one of the solutions to reduce CO2 emissions. Material choice is an important part for the total cost of the transport system for CO2.
The present work comprises investigations ...
(Doctoral thesis / Doktoravhandling, 2019)
This thesis focus on the research of the new and scarcely explored material class oxyhydrides, where the anionic lattice consists of both oxide and hydride anions. Selected oxyhydrides described by the formula La2‑xNdxLiHO3 ...
(Doctoral thesis / Doktoravhandling, 2019)
(Doctoral thesis / Doktoravhandling, 2019)
(Doctoral thesis / Doktoravhandling, 2019)
We have developed the first atomic layer deposition (ALD) processes for thin films of iron in a +2 oxidation state (Fe2+), as well as nickel titanate (NiTiO3). These materials are important for the understanding and ...
(Doctoral thesis / Doktoravhandling, 2019)
The interest in organogold chemistry has increased rapidly during the last 20-30 years, and nowadays there are numerous research group across the world working with gold and its rich chemistry. Au(I) complexes have been ...
(Doctoral thesis / Doktoravhandling, 2018)
Two of the biggest challenges for the world today are the global warming, partly resulting from the increased CO2 emissions, and the need of new energy sources due to an increasing world population and the necessary ...
(Doctoral thesis / Doktoravhandling, 2018)
This thesis has got two parts within the common theme of Diels-Alder reactions. One part starts with the group of natural products called asmarines. These compounds, which were found in the red sea sponges, were believed ...
(Doctoral thesis / Doktoravhandling, 2018)
Magnetic properties are an important application area in quantum chemistry. However, for the most widely used method in electronic structure calculations, density-functional theory, it is still not understood how to ...
(Doctoral thesis / Doktoravhandling, 2018)
Positron emission tomography (PET) is one of the most sensitive in vivo imaging techniques available to clinicians and researchers. It helps in understanding the biological interactions and mechanism of various diseases ...
(Doctoral thesis / Doktoravhandling, 2018)
This thesis contributed to the field of human exposure to environmental pollutants called poly- and perfluoroalkyl substances (PFASs). Daily intakes of PFASs via ingestion, inhalation, and dermal absorption were estimated ...
(Doctoral thesis / Doktoravhandling, 2017)
Lithium-ion batteries (LIBs) are the power source of choice for portable devices and electric vehicles. The technology is increasingly used for large-scale stationary energy storage to balance supply and demand of intermittent ...
(Doctoral thesis / Doktoravhandling, 2017)
The aim of the study was to advance the chemistry related to aminophosphonic acids. After reviewing the available literature, our attention was drawn towards the preparation of chiral ∝-aminophosphonic acids and derivatives ...
(Doctoral thesis / Doktoravhandling, 2017)
Luminescent materials have become an integral part of our society, being for instance used to light up our buildings and electronic displays. The process of absorbing ultra-violet light and converting it to visible or near ...
(Doctoral thesis / Doktoravhandling, 2017)
Mye av dagens høyteknologiske utstyr og apparater ville sannsynligvis ikke sett dagens lys hvis ikke det hadde vært for materialteknologiens stadige fremskritt. I jakten på stadige forbedringer av slik teknologi må man ...
(Doctoral thesis / Doktoravhandling, 2017)
This dissertation is submitted in partial fulfilment of the requirements for the degree of Philosophiae Doctor (PhD) at Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Oslo, Norway. The ...
(Doctoral thesis / Doktoravhandling, 2017)
This thesis summarizes atomic layer deposition (ALD) of thin films of a set of alkali metal niobates and tantalates with technologically important physical properties.
ALD of LiNbO3 is presented first, where we showcase ...
(Doctoral thesis / Doktoravhandling, 2017)
(Doctoral thesis / Doktoravhandling, 2017)
Cereal crops (such as oats, wheat, barley, rye, corn etc.) are often contaminated with toxigenic fungi during field or storage conditions, which can consequently lead to food and feed contamination with mycotoxins and to ...
(Doctoral thesis / Doktoravhandling, 2017)
Eutrophication is globally a growing concern, as freshwater bodies are becoming more and more exposed to nutrient pollution. Excessive P loading is often the main cause of eutrophication, as P is often the limiting nutrient ...
(Doctoral thesis / Doktoravhandling, 2017)
(Doctoral thesis / Doktoravhandling, 2017)
This PhD thesis deeply analyzes the mechanistic and kinetic behavior of methanol and dimethyl ether (DME) in the industrially relevant Methanol-To-Hydrocarbons (MTH) reaction, which employs zeolitic materials as catalysts. ...
(Doctoral thesis / Doktoravhandling, 2017)
Around three decades ago, environmental chemists developed a new technique to identify pollutants present in complex environmental mixtures: effect-directed analysis (EDA). EDA uses chemical tools (for the extraction, ...
(Doctoral thesis / Doktoravhandling, 2017)
(Doctoral thesis / Doktoravhandling, 2017)
The relatively short lifetime of unidimensional 10-ring zeolite catalysts in the methanol to hydrocarbons reaction is improved by a factor of ~20 by introducing mesoporosity in the zeolites via sequential desilication and ...
(Doctoral thesis / Doktoravhandling, 2016)
Resistance to chemotherapy and/or radiotherapy limits the effectiveness of cancer treatment. One factor that can contribute to resistance is the process of DNA repair. Among the different DNA repair pathways, the base ...
(Doctoral thesis / Doktoravhandling, 2016)
High sensitivity measurements of side-chain oxysterols using liquid chromatography mass spectrometry
(Doctoral thesis / Doktoravhandling, 2016)
(Doctoral thesis / Doktoravhandling, 2016)
(Doctoral thesis / Doktoravhandling, 2015)
Det er den organiske formen av kvikksølv, metylkvikksølv, som står i sentrum for kvikksølvforskningen. Metylkvikksølv anrikes opp gjennom næringskjedene, så selv om vannet ikke inneholder mye kvikksølv kan fisk allikevel ...
(Doctoral thesis / Doktoravhandling, 2015)
Energy demand and emissions of greenhouse gases are increasing. The use of renewable energy such as solar energy, hydro power and wind power can help mitigate further emissions. Transparent conducting oxides (TCO’s) are ...
(Doctoral thesis / Doktoravhandling, 2015)
Improvements in performance of lithium ion batteries (LIB) depend on further developments of the electroactive materials, specially the cathode. Many different classes of materials have been investigated as possible cathode ...
(Doctoral thesis / Doktoravhandling, 2014)
Industrial development, increase in population and need for improving the living standards of people around the globe have resulted into high demand of energy worldwide. The renewable energy sources seem to be unreliable ...
(Doctoral thesis / Doktoravhandling, 2014)
(Doctoral thesis / Doktoravhandling, 2014)
Gangliosides are sialic acid-containing glycosphingolipids expressed on all vertebrate cells. They are primarily positioned in the plasma membrane, with the ceramide part anchored in the membrane and the glycan part exposed ...
(Doctoral thesis / Doktoravhandling, 2014)
This thesis presents experimental work on thin films of different compounds containing lithium, sodium or potassium has been synthesized by atomic layer deposition (ALD). The overall motivation for this work has been to ...
(Doctoral thesis / Doktoravhandling, 2014)
(Doctoral thesis / Doktoravhandling, 2014)
Diazo compounds have great synthetic potential as versatile reagents in organic synthesis. The formation of Rh(II) carbenoids from diazo compounds allows the selective formation of C-C and C-heteroatom bonds and the ...
(Doctoral thesis / Doktoravhandling, 2014)
(Doctoral thesis / Doktoravhandling, 2014)
New methods for Born-Oppenheimer molecular dynamics simulations have been developed and used to study protonated water clusters and mechanochemistry of alkanes. The novel algorithms are an efficient coordinate transformation ...
(Doctoral thesis / Doktoravhandling, 2014)
(Doctoral thesis / Doktoravhandling, 2014)
There are many different solar cell technologies which aim at producing electricity from sunlight cheap and/or efficient. As the efficiency of silicon cells is slowly but continuously climbing, price plummeting, and ...
(Doctoral thesis / Doktoravhandling, 2014)
The interest in organogold compounds continues to grow. Gold(III) complexes are being investigated as catalysts for organic transformations as well as tested as potential anti-cancer drugs. Despite this wide-ranging interest ...
(Doctoral thesis / Doktoravhandling, 2014)
(Doctoral thesis / Doktoravhandling, 2014)
The overall aim of this work is to contribute to a better understanding of the reactions taking place at the oxygen electrode in proton ceramic fuel cells (PCFCs) and, moreover, to develop new materials with improved ...
(Doctoral thesis / Doktoravhandling, 2013)
The basis of supramolecular chemistry is a detailed knowledge of fundamental molecular properties and non-covalent interactions, which is dedicated to the preparation of novel structures as functional materials. Here we ...
(Doctoral thesis / Doktoravhandling, 2013)
Facing the increasing environmental degradation locally and globally, the Chinese government sets mandatory goals of 10% reduction of SO2 emission and 20% reduction of energy intensity in its 11th Five-Year Plan period ...
(Doctoral thesis / Doktoravhandling, 2013)
The present thesis is focused on the design of synthetic routes towards asmarine analogues. Asmarines are marine natural products isolated from the sponges Raspalia sp. The asmarine molecule contains a seven-membered ring ...
(Doctoral thesis / Doktoravhandling, 2013)
The thesis investigates the fundamental properties, i.e. ionic transport and hydration, of materials that can be used in sustainable energy production. Every production is confronted with new challenges and new opportunities. ...
(Doctoral thesis / Doktoravhandling, 2013)
The main aim of this Ph.D. project was to study, understand and improve the current knowledge on the Cu-based catalytic reaction in the conversion of ethylene-to-1,2-dichloroethane (oxychlorination), a crucial intermediate ...
(Doctoral thesis / Doktoravhandling, 2013)
(Doctoral thesis / Doktoravhandling, 2013)
(Doctoral thesis / Doktoravhandling, 2013)