• Adsorption of CO2 and Facile Carbonate Formation on BaZrO3 Surfaces 

      Polfus, Jonathan M.; Yildiz, Bilge; Tuller, Harry; Bredesen, Rune (Journal article; Peer reviewed, 2018)
      The adsorption of CO2 and CO on BaZrO3 (0 0 1) was investigated by first-principles calculations with a focus on the BaO termination. CO2 was found to strongly chemisorb on the surface by formation of carbonate species ...
    • Chemical stability and H2 flux degradation of cercer membranes based on lanthanum tungstate and lanthanum chromite 

      Polfus, Jonathan M.; Li, Zuoan; Xing, Wen; Sunding, Martin Fleissner; Walmsley, John; Fontaine, Marie-Laure; Henriksen, Partow Pakdel; Bredesen, Rune (Peer reviewed; Journal article, 2016)
      Ceramic–ceramic composite (cercer) membranes of (Mo-doped) lanthanum tungstate, La27(W,Mo)5O55.5−δ, and lanthanum chromite, La0.87Sr0.13CrO3−δ, have recently been shown to exhibit H2 permeabilities among state-of-the-art. ...
    • CO2 removal at high temperature from multi-component gas stream using porous ceramic membranes infiltrated with molten carbonates 

      Fontaine, Marie-Laure; Peters, Thijs; McCann, M.; Kumakiri, Izumi; Bredesen, Rune (Peer reviewed; Journal article, 2013)
      This work reports on the investigation of CO2 selective membranes for pre-combustion and post- combustion processes, in which CO2 is extracted from multi-component gas streams at intermediate temperature (400 – 600 °C). ...
    • Doping strategies for increased oxygen permeability of CaTiO3 based membranes 

      Polfus, Jonathan M.; Xing, Wen; Sunding, Martin Fleissner; Hanetho, Sidsel Meli; Dahl, Paul Inge; Larring, Yngve; Fontaine, Marie-Laure; Bredesen, Rune (Peer reviewed; Journal article, 2015)
      Oxygen permeation measurements are performed on dense samples of CaTi0.85Fe0.15O3−δ, CaTi0.75Fe0.15Mg0.05O3−δ and CaTi0.75Fe0.15Mn0.10O3−δ in combination with density functional theory (DFT) calculations and X-ray photoelectron ...
    • Energi og industri - Mulighetsrom verdikjeder - NHO Veikart for fremtidens næringsliv 

      Støa, Petter; Røkke, Nils Anders; Størset, Sigmund Østtveit; Spooren, Rudie; Knutstad, Gaute A. Johansen; Dahl, Nina; Akporiaye, Duncan; Bredesen, Rune; Sand, Gunnar; Tveten, Erlend Grytli; Mortensholm, Stein Kleppe; Steenstrup-Duch, Anne; Mehammer, Eirill Bachmann; Schäffer, Linn Emelie; Sandquist, Judit; Vullum-Bruer, Fride; Sheridan, Edel Maria; Alnæs, Lisbeth-Ingrid; Høgaas, Per Helge; Lademo, Odd-Geir; Øvrelid, Eivind Johannes (SINTEF Rapport;2019:01139, Research report, 2019)
      Kan fremtidig verdiskaping innen energi og industri opprettholde Norge som bærekraftig velferdsnasjon, samtidig som vi oppfyller våre forpliktelser i internasjonale klimaavtaler og løser egne utfordringer i tråd med FNs ...
    • Energi og industri - Mulighetsrom verdikjeder - NHO Veikart for fremtidens næringsliv 

      Støa, Petter; Røkke, Nils Anders; Størset, Sigmund Østtveit; Spooren, Rudie; Knutstad, Gaute A. Johansen; Dahl, Nina; Akporiaye, Duncan; Bredesen, Rune; Sand, Gunnar; Tveten, Erlend Grytli; Mortensholm, Stein Kleppe; Steenstrup-Duch, Anne; Mehammer, Eirill Bachmann; Schäffer, Linn Emelie; Sandquist, Judit; Vullum-Bruer, Fride; Sheridan, Edel Maria; Alnæs, Lisbeth-Ingrid; Høgaas, Per Helge; Lademo, Odd-Geir; Øvrelid, Eivind Johannes (SINTEF Rapport;2019:01139, Research report, 2019)
      Kan fremtidig verdiskaping innen energi og industri opprettholde Norge som bærekraftig velferdsnasjon, samtidig som vi oppfyller våre forpliktelser i internasjonale klimaavtaler og løser egne utfordringer i tråd med FNs ...
    • Energi og Industri - NHO veikart for fremtidens næringsliv 

      Støa, Petter; Vullum-Bruer, Fride; Sheridan, Edel; Alnæs, Lisbeth Ingrid; Høgaas, Per Helge; Lademo, Odd-Geir; Øvrelid, Eivind Johannes; Skreiberg, Øyvind; Røkke, Nils; Størset, Sigmund; Sørum, Lars; Spooren, Rudie; Knutstad, Gaute; Dahl, Nina; Akporiaye, Duncan; Bredesen, Rune; Sand, Gunnar; Tveten, Erlend Grytli; Mortensholm, Stein; Steenstrup-Duch, Anne; Mehammer, Eirill Bachmann; Schäffer, Linn Emilie; Sandquist, Judit; Tande, John Olav (SINTEF rapport;2019:01139, Research report, 2019-10)
    • Enhanced O2 flux of CaTi0.85Fe0.15O3 – d based membranes by Mn doping 

      Polfus, Jonathan M.; Xing, Wen; Riktor, Marit Dalseth; Sunding, Martin Fleissner; Dahl, Paul Inge; Hanetho, Sidsel Meli; Mokkelbost, Tommy; Larring, Yngve; Fontaine, Marie-Laure; Bredesen, Rune (Peer reviewed; Journal article, 2016)
      Dense symmetric membranes of CaTi0.85−xFe0.15MnxO3−δ (x = 0.1, 0.15, 0.25, 0.4) are investigated in order to determine the optimal Mn dopant content with respect to highest O2 flux. O2 permeation measurements are performed ...
    • Fabrication and testing of a planar microstructured concept module with integrated palladium membranes 

      Boeltken, Tim; Belimov, M.; Pfeiffer, Peter; Peters, Thijs; Bredesen, Rune; Dittmeyer, Roland (Peer reviewed; Journal article, 2013)
      A planar microstructured hydrogen separation module has been fabricated to study the hydrogen permeation through free-standing palladium-based membranes (Pd, PdCu and PdAg) with minimal influence by concentration polarization. ...
    • Factors Limiting the Apparent Hydrogen Flux in Asymmetric Tubular Cercer Membranes Based on La27W3.5Mo1.5O55.5−δ and La0.87Sr0.13CrO3−δ 

      Li, Zuoan; Polfus, Jonathan Marc; Xing, Wen; Denonville, Christelle; Fontaine, Marie-Laure; Bredesen, Rune (Journal article; Peer reviewed, 2019)
      Asymmetric tubular ceramic–ceramic (cercer) membranes based on La27W3.5Mo1.5O55.5−δ-La0.87Sr0.13CrO3−δ were fabricated by a two-step firing method making use of water-based extrusion and dip-coating. The performance of the ...
    • Formation of hydrogen bubbles in Pd-Ag membranes during H2 permeation 

      Peters, Thijs; Almeida Carvalho, Patricia; Stange, Marit Synnøve Sæverud; Bredesen, Rune (Peer reviewed; Journal article, 2019)
      Palladium membranes used for hydrogen separation seemingly develop cavities filled with hydrogen, i.e. hydrogen bubbles, along the grain boundaries. These bubbles may represent initial stages of pinhole formation that lead ...
    • GHGT-12 Performance of the IGCC with distributed feeding of H2 in the gas turbine burner 

      Jordal, Kristin; Anantharaman, Rahul; Gruber, Andrea; Peters, Thijs; Henriksen, Partow Pakdel; Berstad, David Olsson; Bredesen, Rune (Peer reviewed; Journal article, 2014)
      A main hurdle for realizing the IGCC with CO2 capture is the lack of gas turbines capable of burning hydrogen in an environmental-friendly, yet energy-efficient manner. With currently proposed combustion schemes an efficiency ...
    • Grain boundary segregation in Pd-Cu-Ag alloys for high permeability hydrogen separation membranes 

      Løvvik, Ole Martin; Zhao, Dongdong; Li, Yanjun; Bredesen, Rune; Peters, Thijs (Peer reviewed; Journal article, 2018)
      Dense metal membranes that are based on palladium (Pd) are promising for hydrogen separation and production due to their high selectivity and permeability. Optimization of alloy composition has normally focused on bulk ...
    • High-purity H2 production with CO2 capture based on coal gasification 

      Jordal, Kristin; Anantharaman, Rahul; Peters, Thijs; Berstad, David Olsson; Morud, John Christian; Nekså, Petter; Bredesen, Rune (Journal article; Peer reviewed, 2015)
      A novel hybrid concept is proposed, combining Pd-alloy membrane and low temperature separation technology, to produce pure H2 from gasified coal and capture the main part of the generated CO2. 75% of the H2 produced from ...
    • Hydrogen Induced Vacancy Clustering and Void Formation Mechanisms at Grain Boundaries in Palladium 

      Polfus, Jonathan Marc; Løvvik, Ole Martin; Bredesen, Rune; Peters, Thijs (Peer reviewed; Journal article, 2020)
      Hydrogen has a significant impact on the formation of vacancies, clusters and voids in palladium and other metals. The formation of vacancy-hydrogen complexes in bulk Pd and at Σ3 and Σ5 grain boundaries was investigated ...
    • Hydrogen separation membranes based on dense ceramic composites in the La27W5O55.5–LaCrO3 system 

      Polfus, Jonathan M.; Xing, Wen; Fontaine, Marie-Laure; Denonville, Christelle; Henriksen, Partow Pakdel; Bredesen, Rune (Peer reviewed; Journal article, 2015)
      Some compositions of ceramic hydrogen permeable membranes are promising for integration in high temperature processes such as steam methane reforming due to their high chemical stability in large chemical gradients and CO2 ...
    • Improved CO2 flux by dissolution of oxide ions into the molten carbonate phase of dual-phase CO2 separation membranes 

      Xing, Wen; Li, Zuoan; Peters, Thijs; Fontaine, Marie-Laure; McCann, Michael; Evans, Anna; Norby, Truls Eivind; Bredesen, Rune (Peer reviewed; Journal article, 2019)
      In a solid-liquid dual-phase CO2 separation membrane, the native ions in the molten alkali carbonate, including carbonate anions and metal cations can transport CO2 in a process that is charge-compensated by electronic ...
    • Influence of Ce3+ polarons on grain boundary space-charge in proton conducting Y-doped BaCeO3 

      Polfus, Jonathan M.; Pishahang, Mehdi; Bredesen, Rune (Peer reviewed; Journal article, 2018)
      Defect segregation and space-charge formation were investigated for a (0 2 1)[1 0 0] symmetric tilt grain boundary in Y-doped BaCeO3. Density functional theory calculations according to the PBE+U formalism were used to ...
    • Innovation in a heterogeneous CCS research centre, managerial and organizational challenges 

      Aasen, Tone Merethe; Mølnvik, Mona J.; Aarlien, Rune; Bredesen, Rune; Munkejord, Svend Tollak; Brunsvold, Amy; Gundersen, Truls (Peer reviewed; Journal article, 2012)
      Recently, the Norwegian authorities have established a number of Centres for Environment-friendly Energy Research (CEER), intended to develop new knowledge, foster breakthrough technology and promote innovation in order ...
    • Investigation of La1−xSrxCrO3−∂ (x ~ 0.1) as Membrane for Hydrogen Production 

      Larring, Yngve; Vigen, Camilla Kaori; Ahouanto, Florian; Fontaine, Marie-Laure; Peters, Thijs; Smith, Jens Bragdø; Norby, Truls; Bredesen, Rune (Peer reviewed; Journal article, 2012)
      Various inorganic membranes have demonstrated good capability to separate hydrogen from other gases at elevated temperatures. Hydrogen-permeable, dense, mixed proton-electron conducting ceramic oxides offer superior ...