Recent Submissions

  • Adding country resolution to EXIOBASE: impacts on land use embodied in trade 

    Bjelle, Eivind Lekve; Többen, Johannes Reinhard; Stadler, Konstantin; Kastner, Thomas; Theurl, Michaela; Erb, Karl-Heinz; Steen-Olsen, Kjartan; Wiebe, Kirsten Svenja; Wood, Richard (Peer reviewed; Journal article, 2020)
    Multiregional input–output (MRIO) databases are used to analyze the impact of resource use and environmental impacts along global supply chains. To accurately account for pressures and impacts that are highly concentrated ...
  • High-pressure CO2/CH4 separation of Zr-MOFs based mixed matrix membranes 

    Ahmad, Mohd Zamidi; Peters, Thijs; Konnertz, Nora; Visser, Tymen; Téllez, Carlos; Coronas, Joaquín; Fıla, Vlastimil; de Vos, WM; Benes, Nieck E. (Peer reviewed; Journal article, 2020)
    The gas separation properties of 6FDA-DAM mixed matrix membranes (MMMs) with three types of zirconium-based metal organic framework nanoparticles (MOF NPs, ca. 40 nm) have been investigated up to 20 bar. Both NPs preparation ...
  • Comparing the Nature of Active Sites in Cu-loaded SAPO-34 and SSZ-13 for the Direct Conversion of Methane to Methanol 

    Kvande, Karoline; Pappas, Dimitrios; Dyballa, Michael Martin; Buono, Carlo; Signorile, Matteo; Borfecchia, Elisa; Lomachenko, Kirill A.; Arstad, Bjørnar; Bordiga, Silvia; Berlier, Gloria; Olsbye, Unni; Beato, Pablo; Svelle, Stian (Peer reviewed; Journal article, 2020)
    On our route towards a more sustainable future, the use of stranded and underutilized naturalgastoproducechemicalswouldbeagreataidinmitigatingclimatechange,duetothereduced CO2 emissions in comparison to using petroleum. ...
  • Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells 

    Truong, Van Men; Tolchard, Julian R; Svendby, Jørgen; Manikandan, Maidhily; Miller, Hamish; Sunde, Svein; Hsiharng, Yang; Dekel, Dario; Barnett, Alejandro Oyarce (Peer reviewed; Journal article, 2020)
    The development of active hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) catalysts for use in anion exchange membrane fuel cells (AEMFCs), which are free from platinum group metals (PGMs), is expected ...
  • Electrochemical enhancement and inhibition of calcium carbonate deposition 

    Edvardsen, Laura; Gawel, Kamila; Wenner, Sigurd; Gawel, Bartlomiej; Torsæter, Malin (Peer reviewed; Journal article, 2020)
    Calcium carbonate is by far the most widespread scaling material. Its deposition in pipes and flowlines has been a long-standing problem for many industries. Hence, a lot of research is devoted to scale inhibition. One of ...
  • Shallow Impurity Band in ZrNiSn 

    Schrade, Matthias; Berland, Kristian; Kosinskiy, Andrey; Heremans, Joseph P.; Finstad, Terje (Peer reviewed; Journal article, 2020)
    ZrNiSn and related half Heusler compounds are candidate materials for efficient thermoelectric energy conversion with a reported thermoelectric figure-of-merit of n-type ZrNiSn exceeding unity. Progress on p-type materials ...
  • Recovery of Platinum Group Metals From Secondary Sources by Selective Chlorination from Molten Salt Media 

    Martinez, Ana Maria Cuellar; Osen, Karen Sende; Støre, Anne (The Minerals, Metals & Materials Series;2367-1181, Peer reviewed; Journal article, 2020)
    The use of molten salts as “solvents” offers interesting possibilities for the treatment of ores, industrial by-products as well as scraps, allowing the development of processes that are mid-way between pyro- and ...
  • Improved cyclability of Nickel-rich layered oxides 

    Wagner, Nils Peter; Tolchard, Julian R; Tron, Artur; Pollen, Harald Norrud; Gaertner, Heiko; Vullum, Per Erik (Peer reviewed; Journal article, 2020)
    This study compares the physico- and electro- chemical properties of LiNi0.8Mn0.10Co0.1O2 (NMC811) and LiNi0.83Mn0.06Co0.09Al0.1O2 (NMCA) prepared by an oxalic acid co-precipitation. Deposition of a SiO2 surface coating ...
  • Hydrogen production by water splitting using gas switching technology 

    Ugwu, Ambrose; Donat, Felix; Zaabout, Abdelghafour; Müller, Christoph; Albertsen, Knuth; Cloete, Schalk Willem Petrus; van Diest, Geert; Amini, Shahriar (Peer reviewed; Journal article, 2020)
    This study demonstrates a novel “Gas Switching Water Splitting (GSWS)” technology for production of pure H2with integrated CO2capture. The reactor concept is based on the chemical looping technology where an oxygen carrier ...
  • Multislice image simulations of sheared needle‐like precipitates in an Al‐Mg‐Si alloy 

    Christiansen, Emil; Ringdalen, Inga Gudem; Bjørge, Ruben; Marioara, Calin Daniel; Holmestad, Randi (Peer reviewed; Journal article, 2020)
    The image contrast of sheared needle‐like precipitates in the Al‐Mg‐Si alloy system is investigated with respect to shear‐plane positions, the number of shear‐planes, and the active matrix slip systems through multislice ...
  • Cold Sintering as a Cost-Effective Process to Manufacture Porous Zinc Electrodes for Rechargeable Zinc-Air Batteries 

    Jayasayee, Kaushik; Clark, Simon; King, Cara; Dahl, Paul Inge; Tolchard, Julian R; Juel, Mari (Peer reviewed; Journal article, 2020)
    Zinc-air batteries (ZABs) offer a sustainable and safe pathway to low-cost energy storage. Recent research shows that thermally-sintered porous Zn electrodes with a three-dimensional network structure can enhance the ...
  • Hydrogen production by water splitting using gas switching technology 

    Ugwu, Ambrose; Donat, Felix; Zaabout, Abdelghafour; Müller, Christoph; Albertsen, Knuth; Cloete, Schalk Willem Petrus; van Diest, Geert; Amini, Shahriar (Peer reviewed; Journal article, 2020)
    This study demonstrates a novel “Gas Switching Water Splitting (GSWS)” technology for production of pure H2 with integrated CO2 capture. The reactor concept is based on the chemical looping technology where an oxygen carrier ...
  • Factors Determining Microporous Material Stability in Water: The Curious Case of SAPO-37 

    Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Thorshaug, Knut; Lind, Anna Maria; Vajeeston, Ponniah; Dovgaliuk, Iurii; Arstad, Bjørnar; Wragg, David; Fjellvåg, Helmer (Peer reviewed; Journal article, 2020)
    Silicoaluminophosphates (SAPOs) are a special class of zeolites that, due to their acidic and shape-selective properties, play a major role in ion exchange and separation processes and in crude oil cracking. SAPO-37 has ...
  • CO2 mobility reduction using foam stabilized by CO2- and water-soluble surfactants 

    Føyen, Tore Lyngås; Alcorn, Zachary Paul; Fernø, Martin; Barrabino, Albert; Holt, Torleif (Peer reviewed; Journal article, 2020)
    Foam can reduce CO2 mobility to improve the sweep efficiency during injection into subsurface geological formations for CO2 storage and enhanced oil recovery. However, CO2 foams are thermodynamically unstable, so they must ...
  • Numerical investigation of a novel pattern for reducing residual stress in additive manufacturing 

    Sun, Li; Ren, Xiaobo; He, Jianying; Zhang, Zhiliang (Peer reviewed; Journal article, 2020)
    Deposition patterns can significantly affect residual stress distribution in additive manufacturing processes. In this paper, a novel deposition pattern, the S-pattern, is proposed for the additive manufacturing process. ...
  • Composition analysis and minimal treatments to solubilize 6 polysaccharides from the brown seaweed Laminaria digitata 7 for microbial growth of thermophiles 

    Allahgoli, Leila; Sardari, Roya; Hakvåg, Sigrid; Ara, Kazi; Kristjansdottir, Thordis Anna; Aasen, Inga Marie; Fridjonsson, Olafur; Brautaset, Trygve; Hreggvidsson, Gudmundur O.; Nordberg Karlsson, Eva (Peer reviewed; Journal article, 2020)
    Brown macroalgae (Phaeophyta) hold high potential as feedstock for biorefineries due to high biomass productivity and carbohydrate content. They are, however, a challenging, unconventional feedstock for microbial refining ...
  • The effect of heavy deformation on the precipitation in an Al-1.3Cu-1.0Mg-0.4Si wt.% alloy 

    Thronsen, Elisabeth; Marioara, Calin Daniel; Sunde, Jonas Kristoffer; Minakuchi, Kazuhiro; Katsumi, Tetsuya; Erga, Iven; Andersen, Sigmund Jarle; Friis, Jesper; Marthinsen, Knut; Matsuda, Kenji; Holmestad, Randi (Peer reviewed; Journal article, 2020)
    This work has investigated the effect of the combination of natural ageing and 80% pre-deformation after solution heat treatment on precipitation during subsequent artificial ageing in an Al-1.3Cu-1.0Mg-0.4Si wt.% alloy. ...
  • Production of Value-Added Chemicals by Bacillus methanolicus Strains Cultivated on Mannitol and Extracts of Seaweed Saccharina latissima at 50C 

    Hakvåg, Sigrid; Nærdal, Ingemar; Heggeset, Tonje Marita Bjerkan; Kristiansen, Kåre Andre; Aasen, Inga Marie; Brautaset, Trygve (Peer reviewed; Journal article, 2020)
    The facultative methylotroph Bacillus methanolicus MGA3 has previously been genetically engineered to overproduce the amino acids L-lysine and L-glutamate and their derivatives cadaverine and γ-aminobutyric acid (GABA) ...
  • Offset dependence of overburden time-shifts from ultrasonic data 

    Bakk, Audun; Holt, Rune Martin; Bauer, Andreas; Dupuy, Bastien; Romdhane, Mohamed Anouar (Peer reviewed; Journal article, 2020)
    Depletion or injection into a reservoir implies stress changes and strains in the reservoir and its surroundings. This may lead to measurable time-shifts for seismic waves propagating in the subsurface. To better understand ...
  • Preparation of Carbon Molecular Sieve Membranes with Remarkable CO2/CH4 Selectivity for High-pressure Natural Gas Sweetening 

    Lei, Linfeng; Lindbråthen, Arne; Zhang, Xiangping; Favvas, Evangelos P.; Sandru, Marius; Hillestad, Magne; He, Xuezhong (Peer reviewed; Journal article, 2020)
    Carbon hollow fiber membranes (CHFMs) were fabricated based on cellulose hollow fiber precursors spun from a cellulose/ionic liquid system. By a thermal treatment on the precursors using a preheating process before ...

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