Institutt for kjemi: Nye registreringer

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    • Seebeck, Peltier, and Soret effects: On different formalisms for transport equations in thermogalvanic cells 

      Kjelstrup, Signe; Kristiansen, Kim Roger; Gunnarshaug, Astrid Fagertun; Bedeaux, Dick (Peer reviewed; Journal article, 2023)
      Thermogalvanic cells convert waste heat directly to electric work. There is an abundance of waste heat in the world and thermogalvanic cells may be underused. We discuss theoretical tools that can help us understand and ...

    • Reversible heat effects of lithium metal- and porous lithium iron phosphate electrodes 

      Gunnarshaug, Astrid Fagertun; Burheim, Odne Stokke; Kjelstrup, Signe (Peer reviewed; Journal article, 2023)
      We report Peltier heats and reaction entropy of cells with lithium metal- and near fully lithiated lithium iron phosphate (LFP) electrodes. The Peltier heats were measured through the Seebeck coefficient of thermogalvanic ...

    • Transient Resonant Auger-Meitner Spectra of Photoexcited Thymine 

      Wolf, Thomas J. A.; Paul, Alexander Christian; Folkestad, Sarai Dery; Myhre, Rolf Heilemann; Cryan, James P.; Berrah, Nora; Bucksbaum, Philip H.; Coriani, Sonia; Coslovich, Giacomo; Feifel, Raimund; Martinez, Todd J.; Moeller, Stefan P.; Mucke, Melanie; Obaid, Razib; Plekan, Oksana; Squibb, Richard; Koch, Henrik; Gühr, Markus (Journal article; Peer reviewed, 2021)
      We present the first investigation of excited state dynamics by resonant Auger–Meitner spectroscopy (also known as resonant Auger spectroscopy) using the nucleobase thymine as an example. Thymine is photoexcited in the UV ...

    • Effect of seven different terthiophene π-spacers on dye performance in dye-sensitized solar cells 

      Almenningen, David Moe; Hansen, Henrik Erring; Buene, Audun Formo; Hoff, Bård Helge; Gautun, Odd Reidar (Journal article; Peer reviewed, 2022)
      To ensure high photocurrents from dye-sensitized solar cells (DSSC), it is important that the dye absorbs as much of the energy from the sunlight as possible. To achieve a wide absorption and cover larger parts of the solar ...

    • Local equilibrium in liquid phase shock waves 

      Maltby, Tage Winther; Hafskjold, Bjørn; Bedeaux, Dick; Kjelstrup, Signe; Wilhelmsen, Øivind (Peer reviewed; Journal article, 2023)

    • The Role of Chloride ion in the Silicate Condensation Reaction from ab Initio Molecular Dynamics Simulations 

      Ho, Thi H.; Do, Tuong Ha; Tong, Hien Duy; Meijer, Evert Jan; Trinh, Thuat (Journal article; Peer reviewed, 2023)
      The comprehension of silicate oligomer formation during the initial stage of zeolite synthesis is of significant importance. In this study, we investigated the effect of chloride ions (Cl–) on silicate oligomerization using ...

    • Recycling of paper, cardboard and its PFAS in Norway 

      Langberg, Håkon Austad; Arp, Hans Peter Heinrich; Varela, Gabriela Castro; Asimakopoulos, Alexandros; Knutsen, Heidi (Peer reviewed; Journal article, 2023)
      Per- and polyfluoroalkyl substances (PFAS) have been used in paper products since the 1960s. PFAS emissions during the life cycle of these products have been substantial sources of these substances to the environment. Here, ...

    • Structure-function relationships in the nasal cavity of Arctic and subtropical seals 

      Cheon, Hyejeong; Kjelstrup, Signe; Kizilova, Nataliya; Flekkøy, Eirik Grude; Mason, Matthew J.; Folkow, Lars (Peer reviewed; Journal article, 2023)
      The heating and moistening of inhaled air, and the cooling and moisture removal from exhaled air, are crucial for the survival of animals under severe environmental conditions. Arctic mammals have evolved specific adaptive ...

    • Free energy of critical droplets - From the binodal to the spinodal 

      Aasen, Ailo; Wilhelmsen, Øivind; Hammer, Morten; Reguera, David (Peer reviewed; Journal article, 2023)
      Arguably, the main challenge of nucleation theory is to accurately evaluate the work of formation of a critical embryo in the new phase, which governs the nucleation rate. In Classical Nucleation Theory (CNT), this work ...

    • Vapour phase conversion of acetic acid over metal oxide catalysts at hydropyrolysis conditions. 

      Peters, Robert Lennard (Master thesis, 2023)
      De utslippet av drivhusgasser i løpet av de siste 150 årene har ført til klimaendringer, noe som tvinger verden til å finne alternative måter å produsere transportbrensel og plattformkjemi på. Tre er et lett tilgjengelig ...

    • Anilines in acid catalyzed amination with 4-chloro-7H-pyrrolo[2,3-d]pyrimidine 

      Svergja, Hanne (Master thesis, 2023)
      Pyrrolopyrimidiner har en omfattende farmakologisk profil og er av stor betydning i mange biologisk aktive forbindelser. Syre-katalysert aminering av slike heterosykliske forbindelser er en velkjent strategi innen syntese ...

    • Occurrence and sorption behaviour of bisphenols and benzophenone UV-filters in e-waste plastic and vehicle fluff 

      Runde, Kristin; Castro, Gabriela; Vike-Jonas, Kristine; Villa Gonzalez, Susana; Asimakopoulos, Alexandros; Arp, Hans Peter Heinrich (Peer reviewed; Journal article, 2022)
      Bisphenols and benzophenone UV-filters are hazardous, high production volume chemicals. There is concern that these contaminants could leach into the environment or be recycled into new products during waste management. ...

    • Coupled cluster theory and strong light-matter coupling 

      Haugland, Tor Strømsem (Doctoral theses at NTNU;2023:354, Doctoral thesis, 2023)
      Chemical properties and reactivity are influenced by many external factors, such as temperature, pressure, solvents, and electric fields. In spectroscopy, molecules are probed using light, which yields information about ...

    • Thermoelectric Phenomena in Lithium Ion Batteries and Thermogalvanic Cells 

      Gunnarshaug, Astrid Fagertun (Doctoral theses at NTNU;2023:308, Doctoral thesis, 2023)
      Electrochemical cells are central in the shift towards green energy sources. Lithium-ion batteries have rapidly become one of the world’s leading energy storage technologies. Thermogalvanic cells can be used to convert ...

    • Engineering chemistry in the strong coupling regime: theoretical insights and new perspectives 

      Riso, Rosario Roberto (Doctoral theses at NTNU;2023:316, Doctoral thesis, 2023)
      Cavity quantum optics deals with the interaction of photons and molecules inside an optical cavity, i.e., in the region between two closely spaced mirrors. Perfect optical cavities can only support certain frequencies of ...

    • Water education, ocean literacy and arts integration. A literature review in an interdisciplinary team 

      Østern, Tone Pernille; Bichao, Helena; Preston, Carol; Ardelan, Murat van; Kumarswamy, Manola Gayatri; Martin, Rosemary Kate; Buck, Ralph; Gonzalez, Maria Azucena Gutierrez (Journal article; Peer reviewed, 2023)
      The article is part of the special issue Vol. 12 No. 2 (2023): Aesthetics and Ethics: Arts Education as a Catalyst for Sustainable Development https://journals.oslomet.no/index.php/ar/issue/view/497

    • Limiting current density as a selectivity factor in electrodialysis of multi-ionic mixtures 

      Zimmermann, Pauline; Tekinalp, Önder; Solberg, Simon Birger Byremo; Wilhelmsen, Øivind; Deng, Liyuan; Burheim, Odne Stokke (Peer reviewed; Journal article, 2023)
      Electrodialysis is a promising technology to remove low concentrations of target ions from multi-ionic mixtures. While the synthesis of selective membranes is a prominent topic in research, few studies have been presented ...

    • Synthesis and Development of Highly Selective Pyrrolo[2,3-d]pyrimidine CSF1R Inhibitors Targeting the Autoinhibited Form 

      Aarhus, Thomas Ihle; Bjørnstad, Frithjof Andreas; Wolowczyk, Camilla Izabel; Larsen, Kristin Uhlving; Rognstad, Line; Leithaug, Trygve; Unger, Anke; Habenberger, Peter; Wolf, Alexander; Bjørkøy, Geir; Pridans, Clare; Eickhoff, Jan; Klebl, Bert; Hoff, Bård Helge; Sundby, Eirik (Peer reviewed; Journal article, 2023)
      Colony-stimulating factor-1 receptor (CSF1R) is a receptor tyrosine kinase that controls the differentiation and maintenance of most tissue-resident macrophages, and the inhibition of CSF1R has been suggested as a possible ...

    • Capillary washboarding during slow drainage of a frictional fluid 

      Thorens, Louison; Måløy, Knut Jørgen; Flekkøy, Eirik Grude; Sandnes, Bjørnar; Bourgoin, Mickaël; Santucci, Stephane F A (Peer reviewed; Journal article, 2023)
      Numerous natural and industrial processes involve the mixed displacement of liquids, gases and granular materials through confining structures. However, understanding such three-phase flows remains a formidable challenge, ...

    • Abundance and Characteristics of Microplastics in Atmospheric Deposition from the Arctic and Mainland, Norway. 

      Bjørnsen, Astrid (Master thesis, 2023)