Helmer Fjellvåg

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Mobile phone +47-41633921
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Visiting address Sem Sælands vei 26 0371 OSLO
Postal address Postboks 1033 0315 OSLO
Other affiliations Department of Chemistry
Tags: Energy

Publications

  • 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
  • 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
  • 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
  • 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. . doi: 10.1039/C7CE01389B
  • 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
  • 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: http://dx.doi.org/10.1116/1.4972209
  • 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. . doi: 10.1021/acs.chemmater.6b04699
  • 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
  • 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
  • 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
  • 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
  • Sønsteby, Henrik; Nilsen, Ola & Fjellvåg, Helmer (2016). Atomic layer deposition of (K,Na)(Nb,Ta)O3 thin films. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  34(4) . doi: 10.1116/1.4953406
  • Zacharaki, Eirini; Kalyva, Maria Evangelou; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2016). Burst nucleation by hot injection for size controlled synthesis of ε-cobalt nanoparticles. Chemistry Central Journal.  ISSN 1752-153X.  10(1) . doi: 10.1186/s13065-016-0156-1
  • Øygarden, Vegar; Fjellvåg, Helmer; Sørby, Magnus Helgerud & Sjåstad, Anja Olafsen (2016). Crystal structure of LaSr3Fe3O8(OH)2·xH2O. Inorganic Chemistry.  ISSN 0020-1669.  55(15), s 7630- 7636 . doi: 10.1021/acs.inorgchem.6b01085
  • Bergum, Kristin; Fjellvåg, Helmer & Nilsen, Ola (2015). Thickness dependent structural, optical and electrical properties of Ti-doped ZnO films prepared by atomic layer deposition. Applied Surface Science.  ISSN 0169-4332.  332, s 494- 499 . doi: 10.1016/j.apsusc.2015.01.124
  • Iozzi, Maria Francesca; Vajeeston, Ponniah; Vidya, R.; Ravindran, Ponniah & Fjellvåg, Helmer (2015). Structural and electronic properties of transparent conducting delafossite: a comparison between the AgBO2 and CuBO2 families (B = Al, Ga, In and Sc, Y). RSC Advances.  ISSN 2046-2069.  5(2), s 1366- 1377 . doi: 10.1039/c3ra47531j
  • Karthikeyan, Jayakumar; Song, Haiyan; Olsbye, Unni; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2015). Supported Nickel Based Catalysts, Ni/Mg(Al)O, for Natural Gas Conversion, Prepared via Delamination and Restacking of MgAl- and NiAl-Nanosheets. Topics in catalysis.  ISSN 1022-5528.  58(14-17), s 877- 886 . doi: 10.1007/s11244-015-0454-1
  • Klepper, Karina Barnholt; Miikkulainen, Ville; Fjellvåg, Helmer; Ming, Liu; Dhanadeep, Dutta; David, Gidey; William, Lanford; Rozz, Liza; Li, Han; King, Sean W. & King, Sean W (2015). Atomic layer deposited hybrid organic-inorganic aluminates as potential low-κ dielectric materials. Materials Research Society Symposium Proceedings.  ISSN 0272-9172.  1791, s 15- 20 . doi: 10.1557/opl.2015.519
  • Manimuthu, P.; Vidya, R.; Ravindran, Ponniah; Fjellvåg, Helmer & Venkateswaran, C. (2015). Observation of direct magneto-dielectric behaviour in Lu3Fe5O12−δ above room-temperature. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  17(27), s 17688- 17698 . doi: 10.1039/c5cp02719e
  • Miikkulainen, Ville; Nilsen, Ola; Li, Han; King, Sean W.; Laitinen, Mikko; Sajavaara, Timo & Fjellvåg, Helmer (2015). Atomic layer deposited lithium aluminum oxide: (In)dependency of film properties from pulsing sequence. Journal of Vacuum Science & Technology. A. Vacuum, Surfaces, and Films.  ISSN 0734-2101.  33(1A101) . doi: 10.1116/1.4890006
  • Nagell, Marius Uv; Kumar, Susmit; Sørby, Magnus Helgerud; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2015). Structural and magnetic aspects of La4(Co1-xNix)3O10+δ (0 ≤ x ≤ 1). Phase Transitions.  ISSN 0141-1594.  88(10), s 979- 990 . doi: 10.1080/01411594.2015.1007374 Full text in Research Archive
  • Palcheva, Radostina Dimitrova; Olsbye, Unni; Palcut, Marian; Rauwel, Protima; Tyuliev, Georgi T.; Velinov, Nikolay I. & Fjellvåg, Helmer (2015). Rh promoted La0.75Sr0.25(Fe0.8Co0.2)1−xGaxO3-δ perovskite catalysts: Characterization and catalytic performance for methane partial oxidation to synthesis gas. Applied Surface Science.  ISSN 0169-4332.  357, s 45- 54 . doi: 10.1016/j.apsusc.2015.08.237
  • Saldan, Ivan; Frommen, Christoph; Llamas-Jansa, Isabel; Kalantzopoulos, Georgios N.; Hino, Satoshi; Arstad, Bjørnar; Heyn, Richard H.; Zavorotynska, Olena; Deledda, Stefano; Sørby, Magnus Helgerud; Fjellvåg, Helmer & Hauback, Bjørn (2015). Hydrogen storage properties of γ–Mg(BH4)2 modified by MoO3 and TiO2. International journal of hydrogen energy.  ISSN 0360-3199.  40(36), s 12286- 12293 . doi: 10.1016/j.ijhydene.2015.07.082
  • Samarasingha, Pushpaka; Thomas, Christopher Ian & Fjellvåg, Helmer (2015). Investigation of Li+ insertion in columbite structured FeNb2O6 and rutile structured CrNb2O6 materials. Electrochimica Acta.  ISSN 0013-4686.  153, s 232- 237 . doi: 10.1016/j.electacta.2014.12.004
  • Sjåstad, Anja Olafsen; Andersen, Niels Højmark; Vajeeston, Ponniah; Karthikeyan, Jayakumar; Arstad, Bjørnar; Karlsson, Arne & Fjellvåg, Helmer (2015). On the Thermal Stability and Structures of Layered Double Hydroxides Mg1-xAlx(OH)2(NO3)x·mH2O (0.18 ≤ x ≤ 0.38). European Journal of Inorganic Chemistry.  ISSN 1434-1948.  2015(10), s 1775- 1788 . doi: 10.1002/ejic.201403232
  • Smith, Rachel L.; Slawinski, Wojciech Andrzej; Lind, Anna Maria; Wragg, David; Cavka, Jasmina Hafizovic; Arstad, Bjørnar; Fjellvåg, Helmer; Attfield, Martin P.; Akporiaye, Duncan & Anderson, Michael W. (2015). Nanoporous Intergrowths: How Crystal Growth Dictates Phase Composition and Hierarchical Structure in the CHA/AEI System. Chemistry of Materials.  ISSN 0897-4756.  27(12), s 4205- 4215 . doi: 10.1021/cm504284x
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Crystal structures of aluminum-based hydrides. Emerging Materials Research.  ISSN 2046-0147.  4(2), s 192- 217 . doi: 10.1680/emr.15.00016
  • Villevieille, Claire; Gorzkowska-Sobas, Agnieszka A; Fjellvåg, Helmer & Novak, Petr (2015). Freeze-dryed LixMoO3 nanobelts used as cathode materials for lithium-ion batteries: A bulk and interface study. Journal of Power Sources.  ISSN 0378-7753.  297, s 276- 282 . doi: 10.1016/j.jpowsour.2015.07.082
  • Ahmed, Mohammed Amin Karim; Wragg, David; Nilsen, Ola & Fjellvåg, Helmer (2014). Synthesis and Properties of Ethyl, Propyl, and Butyl Hexa-​alkyldisilanes and Tetrakis(tri-​alkylsilyl)​silanes. Zeitschrift für Anorganische und Allgemeines Chemie.  ISSN 0044-2313.  640(14), s 2956- 2961 . doi: 10.1002/zaac.201400276
  • Bergum, Kristin; Hansen, Per-Anders; Fjellvåg, Helmer & Nilsen, Ola (2014). Structural, electrical and optical characterization of Ti-doped ZnO films grown by atomic layer deposition. Journal of Alloys and Compounds.  ISSN 0925-8388.  616, s 618- 624 . doi: 10.1016/j.jallcom.2014.07.177
  • Bergum, Kristin; Magraso, Anna; Fjellvåg, Helmer & Nilsen, Ola (2014). Thin film fabrication and characterization of proton conducting lanthanum tungstate. Journal of Materials Chemistry A.  ISSN 2050-7488.  2(43), s 18463- 18471 . doi: 10.1039/c4ta03359k
  • Bratvold, Jon Einar; Fjellvåg, Helmer & Nilsen, Ola (2014). Atomic Layer Deposition of oriented nickel titanate (NiTiO<sub>3</sub>). Applied Surface Science.  ISSN 0169-4332.  311, s 478- 483 . doi: 10.1016/j.apsusc.2014.05.092

View all works in Cristin

  • 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.
  • 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; 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.
  • 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.
  • 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.
  • 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
  • Ruud, Amund; Sottmann, Jonas; Slawinski, Wojciech Andrzej; Nilsen, Ola & Fjellvåg, Helmer (2017). Lithiation processes in α-MoO3 for lithium ion battery.
  • 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 .
  • 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.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Emerich, Hermann; Fjellvåg, Helmer; Hermann, Matthias; Hu, Yang; Ruud, Amund & Drathen, Christina (2016). Size Matters: How crystallite size controls reaction path in the sodium bismuth anode system.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Sørby, Magnus Helgerud & Fjellvåg, Helmer (2016). Does the 3D Topological Dirac Semimetal Na3P Have More Than One Ground State?.
  • Ahnfeldt, Tim; Enssle, Marc Christoph; Carrion-Ramirez, Maria del Prado; Fjellvåg, Helmer & Dietzel, Pascal D.C. (2015). Effect of ligand substitution on breathing mode of MOFs with MIL-53 type crystal structure.
  • Ahnfeldt, Tim; Pato Dolgan, Breogan; Enssle, Marc Christoph; Carrion-Ramirez, Maria del Prado; Fjellvåg, Helmer & Dietzel, Pascal D.C. (2015). Influence of ligand substitution on breathing mode of MOFs with MIL-53 type crystal structure.
  • 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 (2015). Studies of SAPO-34 during and after hydrothermal treatment.
  • Fjellvåg, Øystein Slagtern; Fjellvåg, Helmer; Liu, Xin; Haugsrud, Reidar & Sjåstad, Anja Olafsen (2015). Hydride oxides with perovskite related structure: Case study of La2LiHO3.
  • Gandrud, Knut Bjarne; Nilsen, Ola & Fjellvåg, Helmer (2015). Ultra-High Power Capabilities in Amorphous LiFePO4 Thin Films.
  • Getz, Michael; Hansen, Per-Anders; Nilsen, Ola & Fjellvåg, Helmer (2015). Down Conversion in YbVO4 and YVO4:Yb3+ Thin Films Synthesized by Atomic Layer Deposition.
  • Getz, Michael; Hansen, Per-Anders; Nilsen, Ola & Fjellvåg, Helmer (2015). Down Conversion in YbVO4 and YVO4:Yb3+ Thin Films Synthesized by Atomic Layer Deposition.
  • Hu, Yang; Miikkulainen, Ville; Mizohata, Kenichiro; Norby, Truls; Nilsen, Ola & Fjellvåg, Helmer (2015). Conductivity of LixTaOy thin film electrolytes prepared by Atomic Layer Deposition (ALD).
  • Hu, Yang; Ruud, Amund; Miikkulainen, Ville; Norby, Truls; Nilsen, Ola & Fjellvåg, Helmer (2015). Electrical conductivity characterization of LiAlO2 thin films prepared by ALD.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Slawinski, Wojciech Andrzej; Lind, Anna Maria; Wragg, David; Arstad, Bjørnar & Fjellvåg, Helmer (2015). Structural Characterization and Hydrothermal Stability of SAPO-34 and SAPO-37 Catalyst Materials.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Wragg, David; Lind, Anna Maria; Arstad, Bjørnar & Fjellvåg, Helmer (2015). Structural Characterization of SAPO-37 Zeolites in RECX lab and SNBL.
  • Lundvall, Fredrik; Fjellvåg, Helmer & Dietzel, Pascal D.C. (2015). Synthetic studies towards large aperture Metal-Organic Frameworks for gas sorption applications .
  • Nilsen, Ola; Fjellvåg, Helmer; Monakhov, Edouard & Alnes, Mari Endresen (2015). Transparent Conducting Oxides by Atomic Layer Deposition .
  • Nilsen, Ola; Hu, Yang; Sottmann, Jonas; Gandrud, Knut Bjarne; Samarasingha, Pushpaka; Moser, Annina & Fjellvåg, Helmer (2015). Electrons in motion.
  • Ruud, Amund; Gandrud, Knut Bjarne; Nilsen, Ola & Fjellvåg, Helmer (2015). Ultra-High Power Capabilities in Amorphous LiFePO4 Thin Films and New Lithium precursor.
  • Ruud, Amund; Sottmann, Jonas; Nilsen, Ola & Fjellvåg, Helmer (2015). A new LixMoO3 phase.
  • Sønsteby, Henrik; Fjellvåg, Helmer & Nilsen, Ola (2015). Deposition of the Important Lead Free Ferroelectric KxNa(1-x)NbO3.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). High-throughput computational materials design and characterisation for functional inorganic materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Particle size reduction enhance the conductivity in Li2FeSiO4.
  • Bergum, Kristin; Nilsen, Ola & Fjellvåg, Helmer (2014). Energy materials by atomic Layer Deposition .
  • Fjellvåg, Øystein Slagtern; Ruud, Amund; Sønsteby, Henrik; Fjellvåg, Helmer & Nilsen, Ola (2014). Crystallization and electrochemical investigation of α- and β-MoO3 thin films deposited by Atomic Layer Deposition.
  • Gandrud, Knut Bjarne; Fjellvåg, Helmer & Nilsen, Ola (2014). Thin film materials for Li-ion batteries made by atomic layer deposition .
  • Getz, Michael; Hansen, Per-Anders; Fjellvåg, Helmer & Nilsen, Ola (2014). Enhancing the Efficiency of Solar Cells Using Luminescent EuxTiyPzOw Thin Films Synthesized by ALD.

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