Helmer Fjellvåg

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Visiting address Sem Sælands vei 26 None 0371 OSLO
Postal address Postboks 1033 0315 OSLO
Tags: Energy

Publications

  • Bundli, Silje; Dhak, Prasanta; Jensen, Martin; Gunnæs, Anette Eleonora; Nguyen, Phuong Dan; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2019). Controlled alloying of Pt-Rh nanoparticles by the polyol approach. Journal of Alloys and Compounds.  ISSN 0925-8388.  779, s 879- 885 . doi: doi.org/10.1016/j.jallcom.2018.11.301
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2019). Characterization and evaluation of synthetic Dawsonites as CO2 sorbents. Fuel.  ISSN 0016-2361.  236, s 747- 754 . doi: doi.org/10.1016/j.fuel.2018.09.057
  • Pal, Santosh Kumar; Frommen, Christoph; Kumar, Susmit; Hauback, Bjørn; Fjellvåg, Helmer; Woodcock, T. G.; Nielsch, K & Helgesen, Geir (2019). Comparative phase transformation and magnetocaloric effect study of Co and Mn substitution by Cu in MnCoGe compounds. Journal of Alloys and Compounds.  ISSN 0925-8388.  775, s 22- 29 . doi: 10.1016/j.jallcom.2018.10.040
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first principle comparative study of the ionic diffusivity in LiAlO<sub>2</sub> and NaAlO<sub>2</sub> polymorphs for solid-state battery applications. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  20(15), s 9824- 9832 . doi: 10.1039/c8cp00715b
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first-principle study of NaMPO4(M = Mn, Fe, Co, Ni) possible novelstructures as cathode materials for sodium-ion batteries: Structural andelectrochemical characterisation. Materials Chemistry and Physics.  ISSN 0254-0584.  219, s 212- 221 . doi: 10.1016/j.matchemphys.2018.08.007
  • El-Kharbachi, Abdelouahab; Hu, Yang; Sørby, Magnus Helgerud; Mæhlen, Jan Petter; Vullum, Per Erik; Fjellvåg, Helmer & Hauback, Bjørn (2018). Reversibility of metal-hydride anodes in all-solid-state lithium secondary battery operating at room temperature. Solid State Ionics.  ISSN 0167-2738.  317, s 263- 267 . doi: 10.1016/j.ssi.2018.01.037
  • El-Kharbachi, Abdelouahab; Hu, Yang; Sørby, Magnus Helgerud; Vullum, Per Erik; Mæhlen, Jan Petter; Fjellvåg, Helmer & Hauback, Bjørn (2018). Understanding Capacity Fading of MgH2 Conversion-Type Anodes via Structural Morphology Changes and Electrochemical Impedance. Journal of Physical Chemistry C.  ISSN 1932-7447.  122(16), s 8750- 8759 . doi: 10.1021/acs.jpcc.7b12656
  • El-Kharbachi, Abdelouahab; Hu, Yang; Yoshida, Koji; Vajeeston, Ponniah; Kim, Sangryun; Sørby, Magnus Helgerud; Orimo, Shin-Ichi; Fjellvåg, Helmer & Hauback, Bjørn (2018). Lithium ionic conduction in composites of Li(BH4)0.75I0.25 and amorphous 0.75Li2S·0.25P2S5 for battery applications. Electrochimica Acta.  ISSN 0013-4686.  278, s 332- 339 . doi: 10.1016/j.electacta.2018.05.041
  • El-Kharbachi, Abdelouahab; Uesato, Hiroki; Kawai, Hironori; Wenner, Sigurd; Miyaoka, Hiroki; Sørby, Magnus Helgerud; Fjellvåg, Helmer; Ichikawa, Takayuki & Hauback, Bjørn (2018). MgH2–CoO: a conversion-type composite electrode for LiBH4-based all-solid-state lithium ion batteries. RSC Advances.  ISSN 2046-2069.  8(41), s 23468- 23474 . doi: 10.1039/c8ra03340d Full text in Research Archive.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Checchia, Stefano; Lind, Anna Maria; Wragg, David; Fjellvåg, Helmer & Arstad, Bjørnar (2018). In Situ Flow MAS NMR Spectroscopy and Synchrotron PDF Analyses of the Local Response of the Brønsted Acidic Site in SAPO-34 during Hydration at Elevated Temperatures. ChemPhysChem.  ISSN 1439-4235.  19(4), s 519- 528 . doi: 10.1002/cphc.201700973
  • Ruud, Amund; Sottmann, Jonas; Vajeeston, Ponniah & Fjellvåg, Helmer (2018). Operando Investigations of Lithiation and Delithiation Processes in the BiVO4 Anode Material. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076. . doi: 10.1039/C8CP05330H
  • Slawinski, Wojciech Andrzej; Zacharaki, Eirini; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2018). Structural Arrangement in Close-Packed Cobalt Polytypes. Crystal Growth & Design.  ISSN 1528-7483.  18(4), s 2316- 2325 . doi: 10.1021/acs.cgd.7b01736
  • Sønsteby, Henrik Hovde; Aarholt, Thomas; Prytz, Øystein; Fjellvåg, Helmer & Nilsen, Ola (2018). First Complex Oxide Superconductor by Atomic Layer Deposition. Chemical Communications.  ISSN 1359-7345.  54(59), s 8253- 8256 . doi: 10.1039/c8cc04998j
  • Sønsteby, Henrik Hovde; Bratvold, Jon E.; Weibye, Kristian; Fjellvåg, Helmer & Nilsen, Ola (2018). Phase Control in Thin Films of Layered Cuprates. Chemistry of Materials.  ISSN 0897-4756.  30(3), s 1095- 1101 . doi: 10.1021/acs.chemmater.7b05005
  • Vajeeston, Ponniah; Fjellvåg, Helmer & Nilsen, Ola (2018). Search for potential precursors for Si-atomic layer deposition- a quantum chemical study. Materials letters (General ed.).  ISSN 0167-577X.  216, s 189- 192 . doi: 10.1016/j.matlet.2018.01.040 Full text in Research Archive. Show summary
  • Zheng, Jian; Ivashenko, Oleksii; Fjellvåg, Helmer; Groot, Irene M. N. & Sjåstad, Anja Olafsen (2018). Roadmap for Modeling RhPt/Pt(111) Catalytic Surfaces. Journal of Physical Chemistry C.  ISSN 1932-7447.  122(46), s 26430- 26437 . doi: 10.1021/acs.jpcc.8b08124
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2017). First-principles study of the structural stability and electrochemical properties of Na2MSiO4 (M = Mn, Fe, Co and Ni) polymorphs. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  19(22), s 14462- 14470 . doi: 10.1039/c7cp01395g
  • Getz, Michael; Hansen, Per-Anders Stensby; Fjellvåg, Øystein Slagtern; Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer & Nilsen, Ola (2017). Intense NIR emission in YVO4:Yb3+ thin films by atomic layer deposition. Journal of Materials Chemistry C.  ISSN 2050-7526.  5(33), s 8572- 8578 . doi: 10.1039/c7tc02135f Full text in Research Archive.
  • Getz, Michael; Hansen, Per-Anders; Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer & Nilsen, Ola (2017). Luminescent YbVO4 by atomic layer deposition. Dalton Transactions.  ISSN 1477-9226.  46(9), s 3008- 3013 . doi: 10.1039/c7dt00253j Full text in Research Archive.
  • Getz, Michael; Hansen, Per-Anders; Fjellvåg, Helmer & Nilsen, Ola (2017). Luminescent properties of europium titanium phosphate thin films deposited by atomic layer deposition. RSC Advances.  ISSN 2046-2069.  7(13), s 8051- 8059 . doi: 10.1039/c6ra27644j Full text in Research Archive.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Lind, Anna Maria; Arstad, Bjørnar; Chernyshov, Dmitry; Fjellvåg, Helmer & Wragg, David (2017). SAPO-37 microporous catalysts: revealing the structural transformations during template removal. Catalysis, Structure & Reactivity.  ISSN 2055-0758.  3(1-2), s 79- 88 . doi: 10.1080/2055074X.2016.1262569 Full text in Research Archive. Show summary
  • Kalyva, Maria Evangelou; Wragg, David; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Engineering Functions into Platinum and Platinum?Rhodium Nanoparticles in a One-Step Microwave Irradiation Synthesis. ChemistryOpen.  ISSN 2191-1363.  6(2), s 273- 281 . doi: 10.1002/open.201600163
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Thermogravimetric Analysis – A Viable Method for Screening Novel Materials for the Sorbent Enhanced Water-gas Shift Process. Energy Procedia.  ISSN 1876-6102.  114, s 2294- 2303 . doi: 10.1016/j.egypro.2017.03.1372 Full text in Research Archive. Show summary
  • Lundvall, Fredrik; Wragg, David; Vajeeston, Ponniah; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2017). Ab initio structure solution and thermal stability evaluation of a new Ca(II) 3D coordination polymer using synchrotron powder X-ray diffraction data. CrysteEngComm.  ISSN 1466-8033.  19(39), s 5857- 5863 . doi: 10.1039/c7ce01389b Show summary
  • Nagell, Marius Uv; Slawinski, Wojciech Andrzej; Vajeeston, Ponniah; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Temperature induced transitions in La-4(Co1-xNix)(3)O-10 (+) (delta); oxygen stoichiometry and mobility. Solid State Ionics.  ISSN 0167-2738.  305, s 7- 15 . doi: 10.1016/j.ssi.2017.04.006
  • Periyasamy, Manimuthu; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Colossal Positive Magnetoresistance in Oxygen-Deficient Ca4Mn3O10. IEEE transactions on magnetics.  ISSN 0018-9464.  53(11), s 1- 4 . doi: 10.1109/TMAG.2017.2729895
  • Ruud, Amund; Miikkulainen, Ville; Mizohata, Kenichiro; Fjellvåg, Helmer & Nilsen, Ola (2017). Enhanced process and composition control for atomic layer deposition with lithium trimethylsilanolate. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  35(1) . doi: 10.1116/1.4972209
  • Slawinski, Wojciech Andrzej; Okamoto, Hiroshi & Fjellvåg, Helmer (2017). Triclinic crystal structure distortion of multiferroic BiMn7O12. Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials.  ISSN 2052-5192.  73(2), s 313- 320 . doi: 10.1107/S2052520617000725
  • Sottmann, Jonas; Di Michiel, Marco; Fjellvåg, Helmer; Malavasi, Lorenzo; Margadonna, Serena; Vajeeston, Ponniah; Vaughan, Gavin B M & Wragg, David (2017). Chemical Structures of Specific Sodium Ion Battery Components Determined by Operando Pair Distribution Function and X-ray Diffraction Computed Tomography. Angewandte Chemie International Edition.  ISSN 1433-7851.  56(38), s 11385- 11389 . doi: 10.1002/anie.201704271 Full text in Research Archive.
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Ruud, Amund; Drathen, Christina; Emerich, Hermann; Wragg, David & Fjellvåg, Helmer (2017). Bismuth Vanadate and Molybdate: Stable Alloying Anodes for Sodium-Ion Batteries. Chemistry of Materials.  ISSN 0897-4756.  29(7), s 2803- 2810 . doi: 10.1021/acs.chemmater.6b04699
  • Sønsteby, Henrik Hovde; Fjellvåg, Helmer & Nilsen, Ola (2017). Functional perovskites by atomic layer deposition - an overview. Advanced Materials Interfaces.  ISSN 2196-7350.  4:1600903, s 1- 15 . doi: 10.1002/admi.201600903
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2017). First-principles study of structural stability, dynamical and mechanical properties of Li2FeSiO4 polymorphs. RSC Advances.  ISSN 2046-2069.  7(27), s 16843- 16853 . doi: 10.1039/c6ra26555c
  • Zacharaki, Eirini; Beato, Pablo; Tiruvalam, Ramchandra R; Andersson, Klas J.; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). From Colloidal Monodisperse Nickel Nanoparticles to Well-Defined Ni/Al2O3 Model Catalysts. Langmuir.  ISSN 0743-7463.  33(38), s 9836- 9843 . doi: 10.1021/acs.langmuir.7b02197
  • Arstad, Bjørnar; Lind, Anna Maria; Cavka, Jasmina Hafizovic; Thorshaug, Knut; Akporiaye, Duncan; Wragg, David; Fjellvåg, Helmer; Grønvold, Arne & Fuglerud, Terje (2016). Structural changes in SAPO-34 due to hydrothermal treatment. A NMR, XRD, and DRIFTS study. Microporous and Mesoporous Materials.  ISSN 1387-1811.  225, s 421- 431 . doi: 10.1016/j.micromeso.2016.01.024 Show summary
  • Gandrud, Knut Bjarne; Nilsen, Ola & Fjellvåg, Helmer (2016). Ultra-high power capabilities in amorphous FePO4 thin films. Journal of Power Sources.  ISSN 0378-7753.  306, s 454- 458 . doi: 10.1016/j.jpowsour.2015.12.024
  • Hansen, Per-Anders; Fjellvåg, Helmer; Finstad, Terje & Nilsen, Ola (2016). Luminescence properties of lanthanide and ytterbium lanthanide titanate thin films grown by atomic layer deposition. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  34:01A130 . doi: 10.1116/1.4936389
  • Hu, Yang; Ruud, Amund; Miikkulainen, Ville; Norby, Truls; Nilsen, Ola & Fjellvåg, Helmer (2016). Electrical characterization of amorphous LiAlO2 thin films deposited by atomic layer deposition. RSC Advances.  ISSN 2046-2069.  6(65), s 60479- 60486 . doi: 10.1039/c6ra03137d
  • Karthikeyan, Jayakumar; Fjellvåg, Helmer; Vistad, Ørnulv Bjørnsson; Knudsen, Kenneth & Sjåstad, Anja Olafsen (2016). Quantification and key factors in delamination of (Mg1-yNiy)1-xAlx(OH3)x·mH2O. Applied Clay Science.  ISSN 0169-1317.  124-125, s 102- 110 . doi: 10.1016/j.clay.2016.02.001 Show summary
  • Kishore, M. R. Ashwin; Okamoto, Hiroshi; Patra, Lokanath; Vidya, Ravindran; Sjåstad, Anja Olafsen; Fjellvåg, Helmer & Ponniah, Ravindran (2016). Theoretical and experimental investigation on structural, electronic and magnetic properties of layered Mn5O8. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  18(40), s 27885- 27896 . doi: 10.1039/c6cp04170a
  • Lundvall, Fredrik; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2016). Crystal structure of dimethyl 4,4'-dimethoxybiphenyl-3,3'-dicarboxylate. Acta Crystallographica Section E: Crystallographic Communications.  ISSN 2056-9890.  72, s 328- 330 . doi: 10.1107/S2056989016002449
  • Lundvall, Fredrik; Vajeeston, Ponniah; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2016). Two new series of coordination polymers and evaluation of their properties by density functional theory. Crystal Growth & Design.  ISSN 1528-7483.  16(1), s 339- 346 . doi: 10.1021/acs.cgd.5b01302
  • Lundvall, Fredrik; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2016). Two new Cu(II) and La(III) 2D coordination polymers, synthesis and: In situ structural analysis by X-ray diffraction. Dalton Transactions.  ISSN 1477-9226.  45(32), s 12827- 12834 . doi: 10.1039/c6dt02195f
  • Mudu, Federica; Olsbye, Unni; Arstad, Bjørnar; Diplas, Spyridon; Li, Yanjun & Fjellvåg, Helmer (2016). Aluminium substituted lanthanum based perovskite type oxides, non-stoichiometry and performance in methane partial oxidation by framework oxygen. Applied Catalysis A : General.  ISSN 0926-860X.  523, s 171- 181 . doi: 10.1016/j.apcata.2016.05.013 Show summary
  • Patra, Lokanath; Kishore, M. R. Ashwin; Vidya, Ravindran; Sjåstad, Anja Olafsen; Fjellvåg, Helmer & Ponniah, Ravindran (2016). Electronic and magnetic structures of hole doped trilayer La4-xSrxNi3O8 from first-principles calculations. Inorganic Chemistry.  ISSN 0020-1669.  55(22), s 11898- 11907 . doi: 10.1021/acs.inorgchem.6b01938
  • Rauwel, Erwan Yann; Galeckas, Augustinas; Rauwel, Protima; Hansen, Per-Anders; Wragg, David; Nilsen, Ola & Fjellvåg, Helmer (2016). Metal oxide nanoparticles embedded in rare-earth matrix for low temperature thermal imaging applications. Materials Research Express.  ISSN 2053-1591.  3(5) . doi: 10.1088/2053-1591/3/5/055010
  • Samarasingha, Pushpaka; Andersen, Niels Højmark; Sørby, Magnus Helgerud; Kumar, Susmit; Nilsen, Ola & Fjellvåg, Helmer (2016). Neutron diffraction and Raman analysis of LiMn1.5Ni0.5O4 spinel type oxides for use as lithium ion battery cathode and their capacity enhancements. Solid State Ionics.  ISSN 0167-2738.  284, s 28- 36 . doi: 10.1016/j.ssi.2015.11.018
  • Samarasingha, Pushpaka; Sottmann, Jonas; Margadonna, Serena; Emerich, Hermann; Nilsen, Ola & Fjellvåg, Helmer (2016). In situ synchrotron study of ordered and disordered LiMn1.5Ni0.5O4 as lithium ion battery positive electrode. Acta Materialia.  ISSN 1359-6454.  116, s 290- 297 . doi: 10.1016/j.actamat.2016.06.040
  • Slawinski, Wojciech Andrzej; Fjellvåg, Øystein Slagtern; Ruud, Amund & Fjellvåg, Helmer (2016). A novel polytype - The stacking fault based γ-MoO3 nanobelts. Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials.  ISSN 2052-5192.  72(2), s 201- 208 . doi: 10.1107/S2052520615024804
  • Slawinski, Wojciech Andrzej; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2016). Stacking faults and polytypes for layered double hydroxides: what can we learn from simulated and experimental X-ray powder diffraction data?. Inorganic Chemistry.  ISSN 0020-1669.  55(24), s 12881- 12889 . doi: 10.1021/acs.inorgchem.6b02247
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Hu, Yang; Ruud, Amund; Drathen, Christina; Emerich, Hermann; Fjellvåg, Helmer & Wragg, David (2016). How Crystallite Size Controls the Reaction Path in Nonaqueous Metal Ion Batteries: The Example of Sodium Bismuth Alloying. Chemistry of Materials.  ISSN 0897-4756.  28(8), s 2750- 2756 . doi: 10.1021/acs.chemmater.6b00491
  • Sottmann, Jonas; Homs-Regojo, Roberto; Wragg, David; Fjellvåg, Helmer; Margadonna, Serena & Emerich, Hermann (2016). Versatile electrochemical cell for Li/Na-ion batteries and high-throughput setup for combined operando X-ray diffraction and absorption spectroscopy. Journal of Applied Crystallography.  ISSN 0021-8898.  49(6), s 1972- 1981 . doi: 10.1107/S160057671601428X

View all works in Cristin

  • Bakke, Ingrid Marie Bergh; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2018). Struktur og magnetiske egenskaper til de perovskittliknende oksidene ACo0,5B0,5O3 (A = Y, La, Nd; B = Ti, Fe, Ni).
  • El-Kharbachi, Abdelouahab; Høgset, A.; Kim, Sangryun; Vajeeston, Ponniah; Sørby, Magnus Helgerud; Fjellvåg, Helmer; Orimo, Shin-ichi & Hauback, Bjørn (2018). Structural and Electrochemical Study of Mixtures of Halogenated-LiBH4 and Amorphous 0.75Li2S·0.25P2S5 for Li- Conducting Solid Electrolytes.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Nyborg Broge, Nils Lau; Søndergaard-Pedersen, Frederik M; Lind, Anna Maria; Arstad, Bjørnar; Wragg, David; Brummerstedt-Iversen, Bo & Fjellvåg, Helmer (2018). Real-Time Evolution of SAPO Catalysts' Local Coordination during Hydrothermal Treatment.
  • Liu, Xin; Haugsrud, Reidar; Bjørheim, Tor Svendsen & Fjellvåg, Helmer (2018). Defect, Stability and Transport in Oxyhydrides. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1980.
  • Zacharaki, Eirini; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2018). Synthesis and Characterization of Colloidal Co, Co-Re and Ni Nanoparticles for Catalysis. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1982.
  • Ahnfeldt, Tim; Enssle, Marc Christoph; Carrion-Ramirez, Maria del Prado; Fjellvåg, Helmer & Dietzel, Pascal D.C. (2017). Effect of ligand substitution on breathing mode of MOFs with MIL-53 type crystal structure.
  • Arstad, Bjørnar; Blom, Richard; Håkonsen, Silje Fosse; Pierchala, Joanna; Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Preparation and evaluation of new sorbent materials for the Sorption Enhanced Water-Gas Shift (SEWGS) reaction.
  • Bernal, Fabian Leonardo Martinez; Fjellvåg, Helmer & Løvvik, Ole Martin (2017). Ternary Iron (II) and Chromium (II) Fluoroperovskites - A Class of Complex Solids. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1898.
  • El-Kharbachi, Abdelouahab; Hu, Yang; Mæhlen, Jan Petter; Sørby, Magnus Helgerud; Fjellvåg, Helmer & Hauback, Bjørn (2017). Hydride Materials in All-Solid Li-Ion Cell Configuration.
  • El-Kharbachi, Abdelouahab; Hu, Yang; Sørby, Magnus Helgerud; Mæhlen, Jan Petter; Fjellvåg, Helmer & Hauback, Bjørn (2017). Contribution of hydride materials to Li-ion battery technology.
  • El-Kharbachi, Abdelouahab; Hu, Yang; Sørby, Magnus Helgerud; Vullum, Per Erik; Mæhlen, Jan Petter; Fjellvåg, Helmer & Hauback, Bjørn (2017). Mechanistic Properties of MgH2–Based Anode As Derived from Structural Morphology Changes Versus Electrochemical Impedance in a Li-Ion Cell.
  • El-Kharbachi, Abdelouahab; Hu, Yang; Yoshida, Koji; Sørby, Magnus Helgerud; Fjellvåg, Helmer; Orimo, Shin-Ichi & Hauback, Bjørn (2017). Ionic Properties of the Li(BH4)0.75I0.25 - 0.75Li2S·0.25P2S5 Mixed System for Near Room-Temperature All-Solid Li-Ion Batteries.
  • El-Kharbachi, Abdelouahab; Hu, Yang; Yoshida, Koji; Sørby, Magnus Helgerud; Ichikawa, Takayuki; Fjellvåg, Helmer; Orimo, Shin-Ichi & Hauback, Bjørn (2017). Hydride materials in all-solid Li-ion cell configuration for room and high temperature applications.
  • El-Kharbachi, Abdelouahab; Uesato, Hiroki; Yamaguchi, S; Sørby, Magnus Helgerud; Miyaoka, H; Ichikawa, Takayuki; Fjellvåg, Helmer & Hauback, Bjørn (2017). Metal Hydride–Oxide Paired Anode for All-Solid Li-Ion Batteries.
  • Fjellvåg, Helmer (2017). Batterier innen transportsektoren - perspektiver.
  • Fjellvåg, Helmer (2017). Battery research at the University of Oslo.
  • Fjellvåg, Helmer (2017). Battery research in Norway.
  • Fjellvåg, Helmer (2017). Functional materials and battery research at UiO.
  • Fjellvåg, Helmer (2017). Materials for energy storage.
  • Fjellvåg, Helmer (2017). Operando synchrotron studies of battery materials.
  • Fjellvåg, Helmer (2017). Operando-studies of Li-and Na.-ion battery materials.
  • Getz, Michael; Nilsen, Ola; Fjellvåg, Helmer & Hansen, Per-Anders Stensby (2017). Design and Growth of Luminescent Thin Films by Atomic Layer Deposition. Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo.. 1895.
  • Hu, Yang; El-Kharbachi, Abdelouahab; Sørby, Magnus Helgerud; Fjellvåg, Helmer & Hauback, Bjørn (2017). LiI-LiBH4-Li2S-P2S5 system as solid electrolytes for all-solid-state batteries.
  • Hu, Yang; El-Kharbachi, Abdelouahab; Yoshida, Koji; Vajeeston, Ponniah; Sørby, Magnus Helgerud; Orimo, Shin-Ichi; Fjellvåg, Helmer & Hauback, Bjørn (2017). Ionic Properties of the borohydride-sulfide Mixed System for All-Solid Li-Ion Batteries.
  • Ivashenko, Oleksii; Zheng, Jian; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Operando Investigations of Surfaces for NOx Abatement Catalysis.
  • Jensen, Martin; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Synthesis and characterization of Pt1-xPdx nanoparticles and their suitability for NH3 oxidation catalysis.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Hill, Adam; Lind, Anna Maria; Arstad, Bjørnar; Attfield, Martin P.; Anderson, Mike; Wragg, David & Fjellvåg, Helmer (2017). CATalyst transformations and LIFEtime by in-situ techniques and modelling (CATLIFE).
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Lind, Anna Maria; Arstad, Bjørnar; Chernyshov, Dmitry; Wragg, David & Fjellvåg, Helmer (2017). High time-resolution in-situ methods for tracking structural transformations in SAPO materials.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Lind, Anna Maria; Arstad, Bjørnar; Wragg, David & Fjellvåg, Helmer (2017). Sub-unit cell structural transformations during template-removal and hydration of SAPO-37 microporous catalysts.
  • Kumar, Susmit; Nagell, Marius Uv; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Low-dimensional Ruddlesden-Popper nickelates La4(NixCo1-x)3O10: Effect of cobalt doping on physical properties and dimensionality.
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Dawsonite as sorbent for the SEWGS process.
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Finding new materials for the SEWGS process.
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2017). Thermogravimetric analysis – a viable method for screening materials for the SEWGS process.
  • Nilsen, Ola; Gandrud, Knut Bjarne; Ruud, Amund & Fjellvåg, Helmer (2017). Atomic Layer Deposition for Thin-Film Lithium-Ion Batteries, In Julien Bachmann (ed.),  Atomic Layer Deposition in Energy Conversion Applications.  Wiley-VCH Verlagsgesellschaft.  ISBN 9783527339129.  Chapter 6.  s 183 - 207
  • Periyasamy, Manimuthu; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Role of defects on the functional properties of mixed transition metal oxides.
  • Ruud, Amund; Sottmann, Jonas; Slawinski, Wojciech Andrzej; Nilsen, Ola & Fjellvåg, Helmer (2017). Lithiation processes in α-MoO3 for lithium ion battery.
  • Sjåstad, Anja Olafsen; Zacharaki, Eirini; Bundli, Silje; Jensen, Martin; Kalyva, Maria Evangelou; Dhak, Prasanta; Kooyman, Patricia J.; Bremmer, Marien G.; Slawiniski, Wojciech Andrzej & Fjellvåg, Helmer (2017). Nanoparticles for heterogeneous catalysis of industrial relevant processes.
  • Sottmann, Jonas; Fjellvåg, Helmer; Wragg, David & Sartori, Sabrina (2017). Synchrotron Based Operando Methods for Characterization of Non-Aqueous Rechargeable Battery Electrode Materials.
  • Sønsteby, Henrik; Fjellvåg, Helmer & Nilsen, Ola (2017). Piezo- and Ferroelectric A+B5+O3 Thin Films.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2017). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Ahnfeldt, Tim; Pato-Doldán, Breogán; Enssle, Marc Christoph; Carrion Ramirez, Maria del Prado; Fjellvåg, Helmer & Dietzel, Pascal D.C. (2016). So ähnlich und doch so verschieden.
  • Arstad, Bjørnar; Lind, Anna Maria; Akporiaye, Duncan; Fuglerud, Terje; Grønvold, Arne; Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Wragg, David & Fjellvåg, Helmer (2016). Characterization and studies of Si and Brønsted site developments in SAPO-18 and SAPO-34 during and after hydrothermal treatments.
  • Arstad, Bjørnar; Lind, Anna Maria; Cavka, Jasmina Hafizovic; Akporiaye, Duncan; Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Wragg, David; Fjellvåg, Helmer; Grønvold, Arne & Fuglerud, Terje (2016). Characterization of catalytic sites in microporous materials using solid-state NMR. An ex-situ and in-situ high temperature flow study..
  • Arstad, Bjørnar; Lind, Anna Maria; Thorshaug, Knut; Cavka, Jasmina Hafizovic; Akporiaye, Duncan; Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Wragg, David; Fjellvåg, Helmer; Grønvold, Arne Gidløv & Fuglerud, Terje (2016). Structural changes in the methanol-to-olefin (MTO) catalyst SAPO-34 after/during hydrothermal treatment.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Hill, Adam; Lind, Anna Maria; Wragg, David; Arstad, Bjørnar; Attfield, Martin P.; Anderson, Mike & Fjellvåg, Helmer (2016). Structural Characterization and Long-term Performance Understanding of SAPO Industrial Catalyst Materials.
  • Karthikeyan, Jayakumar; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2016). Properties and delamination of layered double hydroxides a systematic study..
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2016). Thermogravimetric analysis – a viable method for screening materials for the SEWGS process.
  • Muri, Marte Eiterstraum; Sjåstad, Anja Olafsen; Fjellvåg, Helmer & Zacharaki, Eirini (2016). Synthesis and characterization of free standing Pt-Rh nanoparticles, and 2 wt. % Pt 0.70 Rh 0.30 /Al2O3 and 20 wt. % Co1xRex/Al2O3 (0.00 ≤ x ≤ 0.15) metal-on-support catalysts.
  • Olsbye, Unni; Mudu, Federica; Palcheva, Radostina Dimitrova; Arstad, Bjørnar; Diplas, Spyros; Li, Yanjun; Palcut, Marion; Rauwel, Protima & Fjellvåg, Helmer (2016). On the performance of aluminium or gallium substituted lanthanum based perovskite type oxides in methane partial oxidation by framework oxygen.

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Published Nov. 17, 2010 2:55 PM - Last modified July 27, 2017 1:11 PM