Viser treff 421-440 av 12707

    • Super selective ammonia separation through multiple-site interaction with ionic liquid-based hybrid membranes 

      Yang, Bingbing; Bai, Lu; Li, Tingting; Deng, Liyuan; Liu, Lei; Zeng, Shaojuan; Han, Jiuli; Zhang, Xiangping (Peer reviewed; Journal article, 2021)
      Efficient separation and recovery of ammonia (NH3) is essential for environmental protection and resource utilization. In this work, hybrid membranes for NH3 separation through multiple-site interaction were developed by ...
    • Hydrogen sulfide removal from natural gas using membrane technology: a review 

      Ma, Yulei; Guo, Hongfang; Selyanchyn, Roman; Wang, Bangda; Deng, Liyuan; Dai, Zhongde; Jiang, Xia (Peer reviewed; Journal article, 2021)
      Natural gas, having a significantly lower CO2 emission factor than oil and coal when combusted, is accepted as an important transition fuel towards carbon net-zero society. To meet the calorific value requirements (≥34.0 ...
    • Membrane fabricated via a facile non-solvent induced microstructure re-arrangement with superior CO<inf>2</inf> separation performances 

      Wei, Jing; Ma, Yulei; Qin, Zikang; Jin, Ziheng; Jin, Yao; Yang, Lin; Yao, Lu; Jiang, Wenju; Deng, Yi; Huang, Ya; Zhao, Hongyong; Dong, Jie; Deng, Liyuan; Dai, Zhongde (Journal article; Peer reviewed, 2023)
      CO2 capture and storage (CCS) is taken as an immediate solution to mitigate the impactof increasing atmospheric CO2 on global climate change, and CO2 separation using high-performance membranes is considered a green and ...
    • Impact of dissolved oxygen removal on solvent degradation for post-combustion CO2 capture 

      V. Figueiredo, Roberta; Srivastava, Tanya; Skaar, Tarjei; Warning, Niels; Gravesteijn, Paul; van Os, Peter; Ansaloni, Luca; Deng, Liyuan; Knuutila, Hanna; Monteiro, Juliana; Goetheer, Earl (Peer reviewed; Journal article, 2021)
      One of the major issues encountered in the Post Combustion CO2 Capture processes is the degradation of the solvent which can be in great part attributed to the presence of oxygen in the solution. The present report focuses ...
    • High-performance carbon-capture membranes developed by (non)solvent-induced nanostructural rearrangement in Nafion 

      Wei, Jing; Deng, Jing; Ma, Yulei; Qin, Zikang; Wang, Bangda; Deng, Liyuan; Spontak, Richard J; Dai, Zhongde (Peer reviewed; Journal article, 2023)
      Membrane materials exhibiting high CO2 permeability and selectivity are needed for CO2 capture to mitigate global climate change. In this study, Nafion is dissolved in and cast from N-methylpyrrolidone to generate membranes ...
    • Carbon molecular-sieve membranes developed from a Tröger's base polymer and possessing superior gas-separation performance 

      Dai, Zhongde; Guo, Hongfang; Deng, Jing; Deng, Liyuan; Yan, Jiaqi; Spontak, Richard J (Journal article; Peer reviewed, 2023)
      Carbon molecular-sieve membranes possess tremendous practical advantages over unary polymer membranes by providing high gas-separation performance levels, coupled with excellent mechanical and chemical stability. Improving ...
    • Thermal expansion of SrxBa1−xNb2O6 across and above the ferroelectric phase transition 

      Pedersen, Viviann Hole; Chavez Panduro, Elvia Anabela; Hua, Weicheng; Michaelsen, Marcus Grand; Chernyshov, Dmitry; Walker, Julian Bradley; Grande, Tor; Einarsrud, Mari-Ann (Peer reviewed; Journal article, 2024)
      Lead-free SrxBa1−xNb2O6(SBN) is of interest due to flexible chemistry, ferroelectric behavior, and electro-optic properties. The thermal expansion coefficient for SBN is reported only for compositions x = 0.35–0.59 and ...
    • STEM-EDS of Inception Sites of Vented Trees in a HV XLPE Subsea Cable 

      Hårberg, Sofie Brandtzæg; Nylund, Inger-Emma; Einarsrud, Mari-Ann; Vullum, Per Erik; Lesaint, Cedric Michel; Hvidsten, Sverre (Chapter, 2023)
      High voltage XLPE cable cores have been subjected to wet ageing following the recommendations in CIGRE TB 722. The electrical ageing was performed at 500 Hz and 10 kV/mm. Vented water trees were detected initiating and ...
    • Redox transformations of Ru catalyst during NO oxidation at industrial nitric acid production conditions 

      Gopakumar, Jithin; Martin Benum, Pål; Svenum, Ingeborg-Helene; Enger, Bjørn Christian; Waller, David; Rønning, Magnus (Peer reviewed; Journal article, 2023)
      Oxidation of nitric oxide is one of the main steps in the Ostwald process for industrial nitric acid production. This work summarises the use of - supported Ru catalyst to study the oxidation of NO to NO at ambient and 4 ...
    • The Enhancing Effect of α–FeOOH on Ni Surfaces Toward Electrolytic Water Splitting 

      Heath, Megan M.; Poureshghi, Fatemeh; Seland, Frode; Sunde, Svein; Kriek, Roelof J. (Journal article; Peer reviewed, 2023)
      For decades Ni has been known as an electrocatalyst for the oxygen evolution reaction (OER); however, the crucial role that Fe plays in enhancing the electrocatalytic activity of Ni still requires deeper investigation and ...
    • Shape of a frictional fluid finger 

      Flekkøy, Eirik Grude; Sandnes, Bjørnar; Måløy, Knut Jørgen (Peer reviewed; Journal article, 2023)
      Frictional fluid dynamics describes the displacement patterns that arise when a confined mixture of liquid and grains are displaced by an immiscible fluid under pressures that are too small to cause drainage into single ...
    • Control of Magnon Condensates 

      Frostad, Therese (Doctoral theses at NTNU;2024:63, Doctoral thesis, 2024)
      Spintronics is a technology driven field aimed at harnessing the electron spin for novel devices. This is in contrast to traditional electronics, where the electron charge is used as an information carrier. Advances in ...
    • Faktorar som påverkar energiforbruket i ein Royalprosess 

      Fiske, Mari (Master thesis, 2023)
      Arbeidet med denne rapporten er gjort i samarbeid med Talgø MøreTre AS, og det eksperimentelle arbeidet vart utført deira i storskala Royalanlegg i Surnadal, Noreg. Føremålet med arbeidet var å sjå korleis energiforbruket ...
    • Relation between Conventional and Starch-Assisted ASP Injection and Impact of Crystallinity on Flood Formation 

      Al-Jaber, Hasanain A.; Arsad, Agus; Bandyopadhyay, Sulalit; Jaafar, Mohd Zaidi; Tahir, Muhammad; Nuhma, Mustafa Jawad; Abdulmunem, Abdulmunem R.; Abdulfatah, Mohammad Yasin; Alias, Hajar (Journal article; Peer reviewed, 2023)
    • Simulation of potential and species distribution in a Li||Bi liquid metal battery using coupled meshes 

      Duczek, Carolina; Weber, Norbert; Godinez Brizuela, Omar Emmanuel; Weier, Tom (Journal article; Peer reviewed, 2023)
      In this work a 1D finite volume based model using coupled meshes is introduced to capture potential and species distribution throughout the discharge process in a lithium–bismuth liquid metal battery while neglecting ...
    • A data-derived reference mixture representative of European wastewater treatment plant effluents to complement mixture assessment 

      Beckers, Liza-Marie; Altenburger, Rolf; Brack, Werner; Escher, Beate I.; Hackermüller, Jörg; Hassold, Enken; Illing, Gianina; Krauss, Martin; Krüger, Janet; Michaelis, Paul; Schüttler, Andreas; Stevens, Sarah Lena Inge Marie; Busch, Wibke (Journal article; Peer reviewed, 2023)
      Aquatic environments are polluted with a multitude of organic micropollutants, which challenges risk assessment due the complexity and diversity of pollutant mixtures. The recognition that certain source-specific background ...
    • Deflecting Dendrites by Introducing Compressive Stress in Li7La3Zr2O12 Using Ion Implantation 

      Flatscher, Florian; Todt, Juraj; Burghammer, Manfred; Søreide, Hanne-Sofie Marie Scisly; Porz, Lukas; Li, Yanjun; Wenner, Sigurd; Bobal, Viktor; Ganschow, Steffen; Sartory, Bernhard; Brunner, Roland; Hatzoglou, Constantinos; Keckes, Jozef; Rettenwander, Daniel (Peer reviewed; Journal article, 2023)
      Lithium dendrites belong to the key challenges of solid-state battery research. They are unavoidable due to the imperfect nature of surfaces containing defects of a critical size that can be filled by lithium until fracturing ...
    • Functional characterization of a lytic polysaccharide monooxygenase from Schizophyllum commune that degrades non-crystalline substrates 

      Østby, Heidi; Christensen, Idd Andrea; Hennum, Karen; Varnai, Aniko; Buchinger, Edith; Grandal, Siri; Courtade, Gaston; Hegnar, Olav Aaseth; Aachmann, Finn Lillelund; Eijsink, Vincent (Journal article; Peer reviewed, 2023)
      Lytic polysaccharide monooxygenases (LPMOs) are mono-copper enzymes that use O2 or H2O2 to oxidatively cleave glycosidic bonds. LPMOs are prevalent in nature, and the functional variation among these enzymes is a topic of ...
    • Spatial cumulant models enable spatially informed treatment strategies and analysis of local interactions in cancer systems 

      Hamis, Sara; Somervuo, Panu; Ågren, J Arvid; Tadele, Dagim Shiferaw; Kesseli, Juha; Scott, Jacob G.; Nykter, Matti; Gerlee, Philip; Finkelshtein, Dmitri; Ovaskainen, Otso Tapio (Peer reviewed; Journal article, 2023)
      Theoretical and applied cancer studies that use individual-based models (IBMs) have been limited by the lack of a mathematical formulation that enables rigorous analysis of these models. However, spatial cumulant models ...
    • Development of Solvent Degradation Models for Amine-Based CO2 Capture 

      Braakhuis, Lucas (Doctoral theses at NTNU;2024:54, Doctoral thesis, 2024)
      Carbon capture and storage can be essential for achieving short-term emission reductions to reach climate goals and realizing the decarbonization of hard-to-abate sectors in the future. Aside from logistical and political ...