David Wragg

Senior Engineer - Inorganic materials chemistry
Image of David Wragg
Norwegian version of this page
Phone +47-22858232
Room Ø 152
Username
Visiting address Sem Sælands vei 26 0371 OSLO
Postal address Postboks 1033 0315 OSLO

Background

Born in Wolverhampton, UK.

Education

BSc 1997 University of St Andrews

PhD 2000 University of St Andrews. “Synthesis of Gallium Phosphates from Non Aqueous Solvents”. Supervisor Prof R.E. Morris.

Employment

2008- Present Post doctoral Research Fellow, University of Oslo. “Advanced X-ray Diffraction Characterisation of SAPO-34 Methanol to Olefin Catalysts”.

2005-2008- Post doctoral Research Fellow, University of St Andrews. “Ionothermal Zeolite Synthesis and Zeolite Structural Studies”

2000-2004- Patent Analyst and Team leader, Thomson Derwent Scientific.

Research Interests

  • Powder and single crystal X-ray diffraction
  • In situ and in operando studies of chemical reactions, especially catalysts under real working conditions
  • Synchrotron science
  • Raman spectroscopy
  • Synthesis in unusual solvent systems
Tags: Inorganic materials chemistry, SMN

Publications

  • 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 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 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
  • Rojo-Gama, Daniel; Nielsen, Malte; Wragg, David; Dyballa, Michael Martin; Holzinger, Julian; Falsig, Hanne; Lundegaard, Lars Fahl; Beato, Pablo; Brogaard, Rasmus Yding; Lillerud, Karl Petter; Olsbye, Unni & Svelle, Stian (2017). A Straightforward Descriptor for the Deactivation of Zeolite Catalyst H-ZSM-5. ACS Catalysis.  ISSN 2155-5435.  7, s 8235- 8246 . doi: 10.1021/acscatal.7b02193
  • 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 Show summary
  • Beale, Andrew M.; Lezcano-González, Inés; Slawinski, Wojciech Andrzej & Wragg, David (2016). Correlation between Cu ion migration behaviour and deNOx activity in Cu-SSZ-13 for the standard NH3-SCR reaction. Chemical Communications.  ISSN 1359-7345.  52(36), s 6170- 6173 . doi: 10.1039/c6cc00513f
  • Del Campo, Pablo; Slawinski, Wojciech Andrzej; Henry, Reynald Philippe; Westgård Erichsen, Marius; Svelle, Stian; Beato, Pablo; Wragg, David & Olsbye, Unni (2016). Time- and space-resolved high energy operando X-ray diffraction for monitoring the methanol to hydrocarbons reaction over H-ZSM-22 zeolite catalyst in different conditions. Surface Science.  ISSN 0039-6028.  648, s 141- 149 . doi: 10.1016/j.susc.2015.10.049
  • Gorbitz, Carl Henrik; Wragg, David; Bakke, Ingrid Marie Bergh; Fleicher, Christian; Grønnevik, Gaute; Mykland, Maria; Yoomin, Park; Trovik, Kristian Wiedicke; Serigstad, Halvard & Sundsli, Bård Edgar Vestheim (2016). A phase transition from monoclinic C2 with Z' = 1 to triclinic P1 with Z' = 4 for the quasiracemate L-2-aminobutyric acid–D-methionine (1/1). Acta Crystallographica Section C: Crystal Structure Communications.  ISSN 0108-2701.  72, s 536- 543 . doi: 10.1107/S2053229616008858
  • Küünal, Siim; Kutti, Sander; Rauwel, Protima; Wragg, David; Hussainova, Irina & Rauwel, Erwan (2016). New methodology for the antifungal testing of surfactant-free silver metal nanoparticles for applications in green housing. Key Engineering Materials.  ISSN 1013-9826.  674, s 133- 138 . doi: 10.4028/www.scientific.net/KEM.674.133
  • 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
  • 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
  • Sottmann, Jonas; Bernal, Fabian Leonardo Martinez; Yusenko, Kirill; Herrmann, Matthias; Emerich, Hermann; Wragg, David & Margadonna, Serena (2016). In operando Synchrotron XRD/XAS Investigation of Sodium Insertion into the Prussian Blue Analogue Cathode Material Na1.32Mn[Fe(CN)6]0.83·z H2O. Electrochimica Acta.  ISSN 0013-4686.  200, s 305- 313 . doi: 10.1016/j.electacta.2016.03.131
  • 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
  • Brod, Eva; Øgaard, Anne K. Falk; Hansen, Eddy Walther; Wragg, David; Haraldsen, Trond & Krogstad, Tore (2015). Waste products as alternative phosphorus fertilisers part I: inorganic P species affect fertilisation effects depending on soil pH. Nutrient Cycling in Agroecosystems.  ISSN 1385-1314.  103(2), s 167- 185 . doi: 10.1007/s10705-015-9734-1
  • Lezcano Gonzales, Ines; Wragg, David; Slawinski, Wojciech Andrzej; Hemelsoet, Karen; Van Yperen-De Deyne, Andy; Waroquier, Michel; Van Speybroeck, Veronique & Beale, Andrew M. (2015). Determination of the Nature of the Cu Coordination Complexes Formed in the Presence of NO and NH3 within SSZ-​13. Journal of Physical Chemistry C.  ISSN 1932-7447.  119(43), s 24393- 24403 . doi: 10.1021/acs.jpcc.5b06875
  • 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 Show summary
  • Wragg, David; O'Brien, Matthew G.; Di Michiel, Marco & Bleken, Francesca Lønstad (2015). Rietveld analysis of computed tomography and its application to methanol to olefin reactor beds. Journal of Applied Crystallography.  ISSN 0021-8898.  48, s 1719- 1728 . doi: 10.1107/S1600576715017288 Full text in Research Archive. Show summary
  • 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
  • Küünal, Siim; Kutti, Sander; Guha, Mithu; Rauwel, Protima; Wragg, David; Nurk, Gunnar & Rauwel, Erwan (2014). Silver nanoparticles study for application in green housing. ECS Transactions.  ISSN 1938-5862.  64(47), s 15- 24 . doi: 10.1149/06447.0015ecst
  • Lundvall, Fredrik; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2014). Dimethyl 3,3′-dimethoxybiphenyl-4,4′-dicarboxylate. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  70(4), s o449 . doi: 10.1107/S1600536814005613 Full text in Research Archive.
  • Lundvall, Fredrik; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2014). Methyl 5-iodo-2-methoxybenzoate. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  70(4), s o462 . doi: 10.1107/S1600536814005868 Full text in Research Archive.
  • Slawinski, Wojciech Andrzej; Wragg, David; Akporiaye, Duncan & Fjellvåg, Helmer (2014). Intergrowth structure modelling in silicoaluminophosphate SAPO-18/34 family. Microporous and Mesoporous Materials.  ISSN 1387-1811.
  • Øien, Sigurd; Wragg, David; Reinsch, Helge; Svelle, Stian; Bordiga, Silvia; Lamberti, Carlo & Lillerud, Karl Petter (2014). Detailed structure analysis of atomic positions and defects in zirconium metal-organic frameworks. Crystal Growth & Design.  ISSN 1528-7483.  14(11), s 5370- 5372 . doi: 10.1021/cg501386j
  • Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer; Kjekshus, Arne & Wragg, David (2013). Structure and Polymorphism of M(thd)3 (M = Al, Cr, Mn, Fe, Co, Ga, and In). Zeitschrift für Anorganische und Allgemeines Chemie.  ISSN 0044-2313.  639(5), s 770- 778 . doi: 10.1002/zaac.201200478
  • Bleken, Bjørn Tore Lønstad; Wragg, David; Arstad, Bjørnar; Gunnæs, Anette Eleonora; Mouzon, Johanne; Helveg, Stig; Lundegaard, Lars Fahl; Beato, Pablo; Bordiga, Silvia; Olsbye, Unni; Svelle, Stian & Lillerud, Karl Petter (2013). Unit cell thick nanosheets of zeolite H-ZSM-5: Structure and activity. Topics in catalysis.  ISSN 1022-5528.  56(9-10), s 558- 566 . doi: 10.1007/s11244-013-0010-9 Show summary
  • Maercz, Matthias; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2013). Poly[bis(1,3-dimethyl-1,3-diazinan-2-one)(2,5-dioxidoterephthalato)zirconium(IV)]. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  E69, s m153 . doi: 10.1107/S1600536813003437
  • Maercz, Matthias; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2013). Poly[bis(1,3-dimethylimidazolidin-2-one)([mu]2-2,5-dioxidoterephthalato)zirconium(IV)]. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  E69, s m152 . doi: 10.1107/S1600536813003449
  • Wragg, David; Bleken, Francesca Lønstad; O'Brien, Matthew G.; Di Michiel, Marco; Fjellvåg, Helmer & Olsbye, Unni (2013). The fast Z-scan method for studying working catalytic reactors with high energy X-ray diffraction: ZSM-5 in the methanol to gasoline process. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  15(22), s 8662- 8671 . doi: 10.1039/c3cp44343d
  • Wragg, David; Grønvold, Arne; Voronov, Alexey; Norby, Poul & Fjellvåg, Helmer (2013). Combined XRD and Raman studies of coke types found in SAPO-34 after methanol and propene conversion. Microporous and Mesoporous Materials.  ISSN 1387-1811.  173, s 166- 174 . doi: 10.1016/j.micromeso.2013.02.022
  • Zokaie, Mahsa; Wragg, David; Gronvold, A; Fuglerud, T; Cavka, Jasmina Hafizovic; Lillerud, Karl Petter & Swang, Ole (2013). Unit cell expansion upon coke formation in a SAPO-34 catalyst: A combined experimental and computational study. Microporous and Mesoporous Materials.  ISSN 1387-1811.  165, s 1- 5 . doi: 10.1016/j.micromeso.2012.07.054 Show summary
  • Øien, Sigurd; Wragg, David; Lillerud, Karl Petter & Tilset, Mats (2013). Dichlorido bisbipyridine dicarboxylic acid chloridocopper dimethylformamide tetrasolvate. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368. . doi: 10.1107%2FS1600536812051422 Full text in Research Archive.
  • Feyand, Mark; Hübner, Anna; Rothkirch, André; Wragg, David & Stock, Norbert (2012). Copper Phosphonatoethanesulfonates: Temperature Dependent in Situ Energy Dispersive X-ray Diffraction Study and Influence of the pH on the Crystal Structures. Inorganic Chemistry.  ISSN 0020-1669.  51(22), s 12540- 12547 . doi: 10.1021/ic301976s
  • Jakobsen, Søren; Gianolio, Diego; Wragg, David; Nilsen, Merete Hellner; Emerich, Hermann; Bordiga, Silvia; Lamberti, Carlo; Olsbye, Unni; Tilset, Mats & Lillerud, Karl Petter (2012). Structural determination of a highly stable metal-organic framework with possible application to interim radioactive waste scavenging: Hf-UiO-66. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  86(12) . doi: 10.1103/PhysRevB.86.125429
  • Shaw, Anthony Peter Gordon; Ghosh, Manik Kumer; Wragg, David; Tilset, Mats; Törnroos, Karl Wilhelm; Swang, Ole; Jakobsen, Søren & Heyn, Richard H (2012). Rock n' Roll With Gold: Synthesis, Structure, and Dynamics of a (bipyridine)AuCl3 Complex. Organometallics.  ISSN 0276-7333.  31(20), s 7093- 7100 . doi: 10.1021/om300594c Show summary
  • Wragg, David; O'Brien, Matthew G.; Bleken, Francesca Lønstad; Di Michiel, Marco; Olsbye, Unni & Fjellvåg, Helmer (2012). Watching the Methanol-to-Olefin Process with Time- and Space-Resolved High-Energy Operando X-ray Diffraction. Angewandte Chemie International Edition.  ISSN 1433-7851.  51(32), s 7956- 7959 . doi: 10.1002/anie.201203462
  • Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer; Kjekshus, Arne; Dietzel, Pascal D.C. & Wragg, David (2011). The Mixed-Valence, Mixed-Ligand Complex Co3(thd)3(EtO)4(tert-BuCOO). Zeitschrift für Anorganische und Allgemeines Chemie.  ISSN 0044-2313.  637(14-15), s 2175- 2182 . doi: 10.1002/zaac.201100253 Show summary
  • Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer; Kjekshus, Arne; Wragg, David & Sen Gupta, Nalinava (2011). Synthesis and Crystal Structure of [Cr(thd)(2)(OEt)](2). Zeitschrift für Anorganische und Allgemeines Chemie.  ISSN 0044-2313.  637(1), s 56- 61 . doi: 10.1002/zaac.201000241
  • Beale, Andrew M.; O'Brien, Matthew G.; Kasunic, Marta; Golobic, Amalija; Sanchez-Sanchez, Manuel; Lobo, Alan J. W.; Lewis, Dewi W.; Wragg, David; Nikitenko, Sergey; Bras, Wim & Weckhuysen, Bert M. (2011). Probing ZnAPO-34 Self-Assembly Using Simultaneous Multiple in Situ Techniques. Journal of Physical Chemistry C.  ISSN 1932-7447.  115(14), s 6331- 6340 . doi: 10.1021/jp200043b
  • Kandiah, Mathivathani; Wragg, David; Tilset, Mats & Lillerud, Karl Petter (2011). Poly[tris(mu-2-aminobenzene-1,4-dicarboxylato)tetrakis(N,N-dimethylformamide)diyttrium(III)]. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  67, s M44- U550 . doi: 10.1107/S1600536810050555
  • Lundvall, Fredrik; Wragg, David & Tilset, Mats (2011). (5,5 '-Dimethyl-2,2 '-bipyridine)iodidotrimethylplatinum(IV). Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  67, s M617- U1037 . doi: 10.1107/S1600536811014085
  • Rosenberg, Marianne Lenes; Vlasaná, Klára; Sen Gupta, Nalinava; Wragg, David & Tilset, Mats (2011). Highly cis-Selective Rh(I)-Catalyzed Cyclopropanation Reactions. Journal of Organic Chemistry.  ISSN 0022-3263.  76(8), s 2465- 2470 . doi: 10.1021/jo102140z
  • Sen Gupta, Nalinava; Wragg, David; Tilset, Mats & Omtvedt, Jon Petter (2011). 4,7,13,18-Tetraoxa-1,10-diazoniabicyclo[ 8.5.5]icosane bis(hexafluoridophosphate). Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  67 . doi: 10.1107/S1600536811025992
  • Sen Gupta, Nalinava; Wragg, David; Tilset, Mats & Omtvedt, Jon Petter (2011). 4,7,13,18-Tetraoxa-1,10-diazoniabicyclo[8.5.5]icosane hexafluoridosilicate. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  67 . doi: 10.1107/S1600536811026006
  • Wragg, David; Ahmed, Mohammed Amin Karim; Nilsen, Ola & Fjellvåg, Helmer (2011). (E)-1-(2-Iodophenyl)-2-phenyldiazene. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  67, s O2326- U174 . doi: 10.1107/S1600536811032119
  • Wragg, David; Akporiaye, Duncan & Fjellvåg, Helmer (2011). Direct observation of catalyst behaviour under real working conditions with X-ray diffraction: Comparing SAPO-18 and SAPO-34 methanol to olefin catalysts. Journal of Catalysis.  ISSN 0021-9517.  279(2), s 397- 402 . doi: 10.1016/j.jcat.2011.02.011
  • Wragg, David; Fullerton, Grace M.; Byrne, Peter J.; Slawin, Alexandra M. Z.; Warren, John E.; Teat, Simon J. & Morris, Russell E. (2011). Solvothermal aluminophosphate zeotype synthesis with ionic liquid precursors. Dalton Transactions.  ISSN 1477-9226.  40(18), s 4926- 4932 . doi: 10.1039/c0dt01788d
  • Ahmed, Mohammed Amin Karim; Fjellvåg, Helmer; Kjekshus, Arne; Nielsen, Renie Kristina Birkedal; Norby, Poul; Wragg, David & Sen Gupta, Nalinava (2010). Syntheses, Crystal Structures, and Thermal Stabilities of Polymorphs of Cr(thd)(3). Zeitschrift für Anorganische und Allgemeines Chemie.  ISSN 0044-2313.  636(13-14), s 2422- 2432 . doi: 10.1002/zaac.201000160
  • Jakobsen, Søren; Wragg, David & Lillerud, Karl Petter (2010). Biphenyl-4,4 '-dicarboxylic acid N,N-dimethylformamide monosolvate. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  66, s O2209- U1418 . doi: 10.1107/S1600536810030515
  • Wragg, David; Johnsen, Rigmor Kristin; Norby, Poul & Fjellvåg, Helmer (2010). The adsorption of methanol and water on SAPO-34: in situ and ex situ X-ray diffraction studies. Microporous and Mesoporous Materials.  ISSN 1387-1811.  134(1-3), s 210- 215 . doi: 10.1016/j.micromeso.2010.06.002
  • Wragg, David; Johnsen, Rune Esben; Balasundaram, Murugan; Norby, Poul; Fjellvåg, Helmer; Grønvold, Arne; Fuglerud, Terje; Hafizovic, Jasmina; Vistad, Ørnulv Bjørnsson & Akporiaye, Duncan (2009). SAPO-34 Methanol-to-Olefin Catalysts Under Working Conditions: A Combined In Situ Powder X-Ray Diffraction, Mass Spectrometry and Raman Study. Journal of Catalysis.  ISSN 0021-9517.  268(2), s 290- 296 . doi: 10.1016/j.jcat.2009.09.027

View all works in Cristin

  • 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.
  • Sottmann, Jonas; Fjellvåg, Helmer; Wragg, David & Sartori, Sabrina (2017). Synchrotron Based Operando Methods for Characterization of Non-Aqueous Rechargeable Battery Electrode Materials.
  • 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.
  • 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.
  • Strandbakke, Ragnar; Vøllestad, Einar; Prato, Rafael Alberto; Wragg, David & Norby, Truls (2016). Structural and electrochemical properties of hydrated mixed conductor Ba1-xGd0.8La0.2+xCo2O6-d.
  • Strandbakke, Ragnar; Vøllestad, Einar; Prato, Rafael Alberto; Wragg, David; Sartori, Sabrina & Norby, Truls (2016). Structural and electrochemical properties of hydrated mixed conductor Ba1-xGd0.8La0.2+xCo2O6-d.
  • 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?.
  • 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.
  • 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.
  • Wragg, David (2015). RECX:Applications for The Synchrotron and Neutron Community.
  • Wragg, David (2015). Time and Space Resolved X-ray Diffraction for Catalytic Reactor Studies.
  • Lundvall, Fredrik; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2014). 4,4′-dimethoxybiphenyl-3,3′-dicarboxylic acid. Acta Crystallographica Section E: Structure Reports Online.  ISSN 1600-5368.  70(5) . doi: 10.1107/S1600536814008599
  • Wragg, David (2014). Processing Extremely Large Powder Diffraction Datasets Using The Rietveld Method.
  • Wragg, David (2014). Time and Space Resolved XRD Studies of Catalytic Reactors.
  • Smith, Rachel; Anderson, Michael W.; Attfield, Martin; Fjellvåg, Helmer; Slawinski, Wojciech Andrzej; Wragg, David; Akporiaye, Duncan; Arstad, Bjørnar; Cavka, Jasmina Hafizovic; Lind, Anna Maria & Fuglerud, Terje (2013). MTO Catalysts: A New Toolbox For Characterising SAPO Intergrowths.
  • Swang, Ole; Zokaie, Mahsa; Wragg, David; Grønvold, Arne; Fuglerud, Terje; Cavka, Jasmina Hafizovic & Lillerud, Karl Petter (2013). Unit cell expansion upon coke formation in SAPO-34 catalyst: A combined experimental and computational study.
  • Bleken, Bjørn Tore Lønstad; Arstad, Bjørnar; Jørgensen, Sissel; Wragg, David; Mouzon, Johanne; Lillerud, Karl Petter; Olsbye, Unni & Svelle, Stian (2012). Unit cell thick nanosheets of H-ZSM-5: Spectroscopy and catalysis.
  • Lundvall, Fredrik; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2012). New MOFs based on the unexplored linker 4,4’-dimethoxy-3,3’-biphenyldicarboxylic acid.
  • Lundvall, Fredrik; Wragg, David; Fjellvåg, Helmer & Dietzel, Pascal D.C. (2012). New MOFs based on the unexplored linker 4,4’-dimethoxy-3,3’-biphenyldicarboxylic acid.
  • Wragg, David (2012). In Situ studies of SAPO-34 in the MTO Process.
  • Wragg, David (2012). Looking inside a working chemical reactor with time and space resolved X-ray diffraction.
  • Wragg, David; Bleken, Francesca Lønstad; Fjellvåg, Helmer; Olsbye, Unni; Di Michiel, Marco & O'Brien, Matthew G. (2012). Watching the Methanol to olefin Process with time and Space Resolved X-ray Diffraction.
  • Wragg, David; Fjellvåg, Helmer; Bleken, Francesca Lønstad; Olsbye, Unni; O'Brien, Matthew G. & Di Micheli, Marco (2012). Watching the MTO Process with Time and Space Resolved X-ray Diffraction.
  • Wragg, David (2011). Modelling Stacking Faults in Real MTO Catalysts.
  • Wragg, David (2011). Observing Catalyst Behaviour Under Working Conditions With X-ray Diffraction.
  • Wragg, David (2011). Silicon Mobility and Defect Formation in SAPO-34.
  • Wragg, David (2011). Watching the MTO Process with Time and Space Resolved X-ray Diffraction.
  • Wragg, David (2009). In Situ Synchrotron Studies of SAPO Methanol to Olefin Catalysts Under Working Conditions.
  • Wragg, David (2009). SAPO Methanol to Olefin Catalysts Under Working Conditions.

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Published Nov. 11, 2010 9:00 AM - Last modified Jan. 5, 2016 11:18 AM