David Stephen Wragg

Senior Engineer - Inorganic materials chemistry
Image of David Stephen 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

Manager of the RECX national infrastructure for X-ray diffraction and scattering in Oslo. Specialist in time and space resolved operando studies on batteries and catalysts.

Education

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

Employment

2012-present Senior engineer/research scientist managing the Norwegian national resource centre for X-ray diffraction and scattering, RECX.

2008- 2012 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

  • Batteries
  • In situ and operando studies of batteries and catalysts
  • Powder and single crystal diffraction
  • Spatially resolved X-ray diffraction and imaging
  • Total scattering/pair distribution function analysis
  • Porous materials
  • Synthesis in unusual solvent systems
Tags: Inorganic materials chemistry, SMN

Publications

  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David; Sottmann, Jonas; Koposov, Alexey & Fjellvåg, Helmer (2021). Understanding the (De)Sodiation Mechanisms in Na‐Based Batteries through Operando X‐Ray Methods. Batteries & Supercaps. ISSN 2566-6223. 4(7), p. 1039–1063. doi: 10.1002/batt.202000294 Full text in Research Archive
  • Bernal, Fabian Leonardo Martinez; Lundvall, Fredrik; Kumar, Susmit; Hansen, Per-Anders S.; Wragg, David S. & Fjellvåg, Helmer [Show all 7 contributors for this article] (2021). Jahn-Teller active fluoroperovskites ACrF3 (A=Na+, K+): Magnetic and thermo-optical properties. PHYSICAL REVIEW MATERIALS. ISSN 2475-9953. 5(6). doi: 10.1103/PhysRevMaterials.5.064420
  • Wragg, David Stephen; Kalantzopoulos, Georgios; Pappas, Dimitrios; Pinilla-Herrero, Irene; Rojo-Gama, Daniel & Redekop, Evgeniy [Show all 10 contributors for this article] (2021). Mapping the coke formation within a zeolite catalyst extrudate in space and time by operando computed X-ray diffraction tomography. Journal of Catalysis. ISSN 0021-9517. 104, p. 1–6. doi: 10.1016/j.jcat.2021.07.001
  • Agote-Arán, Miren; Kroner, Anna B.; Wragg, David; Slawinski, Wojciech Andrzej; Briceno, Martha & Islam, Husn U. [Show all 12 contributors for this article] (2020). Understanding the Deactivation Phenomena of Small-Pore Mo/H-SSZ-13 during Methane Dehydroaromatisation. Molecules. ISSN 1420-3049. 25(21), p. 1–15. doi: 10.3390/molecules25215048 Full text in Research Archive
  • Bernal, Fabian Leonardo Martinez; Sottmann, Jonas; Wragg, David; Fjellvåg, Helmer; Fjellvåg, Øystein & Drathen, Christina [Show all 8 contributors for this article] (2020). Structural and magnetic characterization of the elusive Jahn-Teller active NaCrF3. PHYSICAL REVIEW MATERIALS. ISSN 2475-9953. 4(5). doi: 10.1103/PhysRevMaterials.4.054412 Full text in Research Archive
  • Levchenko, Vladimir; Øien-Ødegaard, Sigurd; Wragg, David & Tilset, Mats (2020). Crystal structure of (N^C) cyclo-metalated Au III diazide at 100 K. Acta Crystallographica Section E: Crystallographic Communications. ISSN 2056-9890. 76, p. 1725–1727. doi: 10.1107/S2056989020012955
  • Li, Xinyu; Bianchini, Federico; Wind, Julia; Pettersen, Christine; Vajeeston, Ponniah & Wragg, David [Show all 7 contributors for this article] (2020). Insights into Crystal Structure and Diffusion of Biphasic Na2Zn2TeO6. ACS Applied Materials & Interfaces. ISSN 1944-8244. 12(25), p. 28188–28198. doi: 10.1021/acsami.0c05863 Full text in Research Archive
  • Finegan, Donal; Quinn, Alexander; Wragg, David; Andrew, Colclasure; Xueken, Lu & Tan, Chun [Show all 17 contributors for this article] (2020). Spatial dynamics of lithiation and lithium plating during high-rate operation of graphite electrodes. Energy & Environmental Science. ISSN 1754-5692. 13, p. 2570–2584. doi: 10.1039/d0ee01191f Full text in Research Archive
  • Berntsen, Linn Neerbye; Nova, Ainara; Wragg, David & Sandtorv, Alexander Harald (2020). Cu-catalyzed N-3-Arylation of Hydantoins Using Diaryliodonium Salts. Organic Letters. ISSN 1523-7060. 22(7), p. 2687–2691. doi: 10.1021/acs.orglett.0c00642 Full text in Research Archive
  • Arstad, Bjørnar; Blom, Richard; Håkonsen, Silje Fosse; Pierchala, Joanna; Cobden, Paul & Lundvall, Fredrik [Show all 10 contributors for this article] (2020). Synthesis and Evaluation of K-Promoted Co3-xMgxAl-Oxides as Solid CO2 Sorbents in the Sorption-Enhanced Water−Gas Shift (SEWGS) Reaction. Industrial & Engineering Chemistry Research. ISSN 0888-5885. 59(40), p. 17837–17844. doi: 10.1021/acs.iecr.0c02322 Full text in Research Archive
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Thorshaug, Knut; Lind, Anna Maria; Vajeeston, Ponniah & Dovgaliuk, Iurii [Show all 9 contributors for this article] (2020). Factors Determining Microporous Material Stability in Water: The Curious Case of SAPO-37. Chemistry of Materials. ISSN 0897-4756. 32(4), p. 1495–1505. doi: 10.1021/acs.chemmater.9b04510 Full text in Research Archive
  • Bernal, Fabian Leonardo Martinez; Gonano, Bruno Raymond Gino; Lundvall, Fredrik; Wragg, David; Fjellvåg, Helmer & Veillon, Fabien [Show all 8 contributors for this article] (2020). Canted antiferromagnetism in high-purity NaFeF3 prepared by a novel wet-chemical synthesis method. PHYSICAL REVIEW MATERIALS. ISSN 2475-9953. 4(11). doi: 10.1103/PhysRevMaterials.4.114412 Full text in Research Archive
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard & Sjåstad, Anja Olafsen [Show all 7 contributors for this article] (2019). Characterization and evaluation of synthetic Dawsonites as CO2 sorbents. Fuel. ISSN 0016-2361. 236, p. 747–754. doi: 10.1016/j.fuel.2018.09.057 Full text in Research Archive
  • Li, Xinyu; Bianchini, Federico; Wind, Julia; Vajeeston, Ponniah; Wragg, David & Fjellvåg, Helmer (2019). P2 Type Layered Solid-State Electrolyte Na2Zn2TeO6: Crystal Structure and Stacking Faults . Journal of the Electrochemical Society. ISSN 0013-4651. 166(15), p. A3830–A3837. doi: 10.1149/2.1231915jes
  • Agote-Aran, Miren; Kroner, Anna B; Islam, Husn U; Slawinski, Wojciech Andrzej; Wragg, David & Lezcano-González, Inés [Show all 7 contributors for this article] (2019). Determination of Molybdenum Species Evolution during Non‐Oxidative Dehydroaromatization of Methane and its Implications for Catalytic Performance. ChemCatChem. ISSN 1867-3880. 11(1), p. 473–480. doi: 10.1002/cctc.201801299 Full text in Research Archive
  • Holmsen, Marte Sofie; Nova, Ainara; Hylland, Knut Tormodssønn; Wragg, David; Øien-Ødegaard, Sigurd & Heyn, Richard H. [Show all 7 contributors for this article] (2018). Synthesis of a (N,C,C) Au(III) pincer complex via Csp3–H bond activation: increasing catalyst robustness by rational catalyst design. Chemical Communications. ISSN 1359-7345. 54(79), p. 11104–11107. doi: 10.1039/c8cc05489d
  • Grajeda, Javier; Nova, Ainara; Balcells, David; Bruch, Quinton J.; Wragg, David & Heyn, Richard H. [Show all 8 contributors for this article] (2018). Synthesis and characterization of stable gold(III) PNP pincer complexes. European Journal of Inorganic Chemistry (EurJIC). ISSN 1434-1948. 2018(26), p. 3113–3117. doi: 10.1002/ejic.201800019
  • Rojo-Gama, Daniel; Mentel, Lukasz; Kalantzopoulos, Georgios N.; Pappas, Dimitrios; Dovgaliuk, Iurii & Olsbye, Unni [Show all 11 contributors for this article] (2018). Deactivation of Zeolite Catalyst H-ZSM-5 during Conversion of Methanol to Gasoline: Operando Time- and Space-Resolved X-ray Diffraction. The Journal of Physical Chemistry Letters. ISSN 1948-7185. 9(6), p. 1324–1328. doi: 10.1021/acs.jpclett.8b00094 Full text in Research Archive
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Checchia, Stefano; Lind, Anna Maria; Wragg, David & Fjellvåg, Helmer [Show all 7 contributors for this article] (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), p. 519–528. doi: 10.1002/cphc.201700973
  • Rauwel, Erwan Yann; Simón-Gracia, Lorena; Guha, Mithu; Rauwel, Protima; Küünal, Siim & Wragg, David (2017). Silver metal nanoparticles study for biomedical and green house applications. IOP Conference Series: Materials Science and Engineering. ISSN 1757-8981. 175:012011(1), p. 1–6. doi: 10.1088/1757-899X/175/1/012011
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Ruud, Amund; Drathen, Christina & Emerich, Hermann [Show all 8 contributors for this article] (2017). Bismuth Vanadate and Molybdate: Stable Alloying Anodes for Sodium-Ion Batteries. Chemistry of Materials. ISSN 0897-4756. 29(7), p. 2803–2810. doi: 10.1021/acs.chemmater.6b04699
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Lind, Anna Maria; Arstad, Bjørnar; Chernyshov, Dmitry & Fjellvåg, Helmer [Show all 7 contributors for this article] (2017). SAPO-37 microporous catalysts: revealing the structural transformations during template removal. Catalysis, Structure & Reactivity. ISSN 2055-0758. 3(1-2), p. 79–88. doi: 10.1080/2055074X.2016.1262569 Full text in Research Archive
  • Rojo-Gama, Daniel; Nielsen, Malte; Wragg, David; Dyballa, Michael Martin; Holzinger, Julian & Falsig, Hanne [Show all 12 contributors for this article] (2017). A Straightforward Descriptor for the Deactivation of Zeolite Catalyst H-ZSM-5. ACS Catalysis. ISSN 2155-5435. 7(12), p. 8235–8246. doi: 10.1021/acscatal.7b02193 Full text in Research Archive
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard & Sjåstad, Anja Olafsen [Show all 7 contributors for this article] (2017). Thermogravimetric Analysis – A Viable Method for Screening Novel Materials for the Sorbent Enhanced Water-gas Shift Process. Energy Procedia. ISSN 1876-6102. 114, p. 2294–2303. doi: 10.1016/j.egypro.2017.03.1372 Full text in Research Archive
  • 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), p. 5857–5863. doi: 10.1039/c7ce01389b
  • Øien-Ødegaard, Sigurd; Shearer, Greig Charles; Wragg, David & Lillerud, Karl Petter (2017). Pitfalls in metal-organic framework crystallography: Towards more accurate crystal structures. Chemical Society Reviews. ISSN 0306-0012. 46(16), p. 4867–4876. doi: 10.1039/c6cs00533k
  • 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), p. 273–281. doi: 10.1002/open.201600163
  • Morris, Samuel A; Bignami, Giulia P M; Tian, Yuyang; Navarro, Marta; Firth, Daniel S & Cejka, Jiri [Show all 12 contributors for this article] (2017). In situ solid-state NMR and XRD studies of the ADOR process and the unusual structure of zeolite IPC-6. Nature Chemistry. ISSN 1755-4330. 9(10), p. 1012–1018. doi: 10.1038/nchem.2761
  • Arstad, Bjørnar; Lind, Anna Maria; Cavka, Jasmina Hafizovic; Thorshaug, Knut; Akporiaye, Duncan & Wragg, David [Show all 9 contributors for this article] (2016). Structural changes in SAPO-34 due to hydrothermal treatment. A NMR, XRD, and DRIFTS study. Microporous and Mesoporous Materials. ISSN 1387-1811. 225, p. 421–431. doi: 10.1016/j.micromeso.2016.01.024 Full text in Research Archive
  • 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, p. 133–138. doi: 10.4028/www.scientific.net/KEM.674.133
  • 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), p. 6170–6173. doi: 10.1039/c6cc00513f
  • Rauwel, Erwan Yann; Galeckas, Augustinas; Rauwel, Protima; Hansen, Per-Anders; Wragg, David & Nilsen, Ola [Show all 7 contributors for this article] (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 [Show all 7 contributors for this article] (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, p. 305–313. doi: 10.1016/j.electacta.2016.03.131
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Hu, Yang; Ruud, Amund & Drathen, Christina [Show all 9 contributors for this article] (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), p. 2750–2756. doi: 10.1021/acs.chemmater.6b00491
  • Del Campo, Pablo; Slawinski, Wojciech Andrzej; Henry, Reynald Philippe; Westgård Erichsen, Marius; Svelle, Stian & Beato, Pablo [Show all 8 contributors for this article] (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, p. 141–149. doi: 10.1016/j.susc.2015.10.049
  • 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), p. 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), p. 12827–12834. doi: 10.1039/c6dt02195f
  • Gorbitz, Carl Henrik; Wragg, David; Bakke, Ingrid Marie Bergh; Fleicher, Christian; Grønnevik, Gaute & Mykland, Maria [Show all 10 contributors for this article] (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, p. 536–543. doi: 10.1107/S2053229616008858
  • 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), p. 1972–1981. doi: 10.1107/S160057671601428X
  • Lezcano Gonzales, Ines; Wragg, David; Slawinski, Wojciech Andrzej; Hemelsoet, Karen; Van Yperen-De Deyne, Andy & Waroquier, Michel [Show all 8 contributors for this article] (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), p. 24393–24403. doi: 10.1021/acs.jpcc.5b06875
  • 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), p. 167–185. doi: 10.1007/s10705-015-9734-1
  • 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, p. 1719–1728. doi: 10.1107/S1600576715017288 Full text in Research Archive
  • Smith, Rachel L.; Slawinski, Wojciech Andrzej; Lind, Anna Maria; Wragg, David; Cavka, Jasmina Hafizovic & Arstad, Bjørnar [Show all 10 contributors for this article] (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), p. 4205–4215. doi: 10.1021/cm504284x
  • 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). doi: 10.1107/S1600536814005613 Full text in Research Archive
  • Øien, Sigurd; Wragg, David; Reinsch, Helge; Svelle, Stian; Bordiga, Silvia & Lamberti, Carlo [Show all 7 contributors for this article] (2014). Detailed structure analysis of atomic positions and defects in zirconium metal-organic frameworks. Crystal Growth & Design. ISSN 1528-7483. 14(11), p. 5370–5372. doi: 10.1021/cg501386j
  • 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), p. 2956–2961. doi: 10.1002/zaac.201400276
  • Küünal, Siim; Kutti, Sander; Guha, Mithu; Rauwel, Protima; Wragg, David & Nurk, Gunnar [Show all 7 contributors for this article] (2014). Silver nanoparticles study for application in green housing. ECS Transactions. ISSN 1938-5862. 64(47), p. 15–24. doi: 10.1149/06447.0015ecst
  • 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. doi: 10.1016/j.micromeso.2014.04.024
  • 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). doi: 10.1107/S1600536814005868 Full text in Research Archive
  • Zokaie, Mahsa; Wragg, David; Gronvold, A; Fuglerud, T; Cavka, Jasmina Hafizovic & Lillerud, Karl Petter [Show all 7 contributors for this article] (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, p. 1–5. doi: 10.1016/j.micromeso.2012.07.054
  • 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. 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. doi: 10.1107/S1600536813003449
  • 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), p. 770–778. doi: 10.1002/zaac.201200478
  • 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), p. 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, p. 166–174. doi: 10.1016/j.micromeso.2013.02.022
  • Bleken, Bjørn Tore Lønstad; Wragg, David; Arstad, Bjørnar; Gunnæs, Anette Eleonora; Mouzon, Johanne & Helveg, Stig [Show all 12 contributors for this article] (2013). Unit cell thick nanosheets of zeolite H-ZSM-5: Structure and activity. Topics in catalysis. ISSN 1022-5528. 56(9-10), p. 558–566. doi: 10.1007/s11244-013-0010-9

View all works in Cristin

  • Capellas Espuny, Montserrat; Wragg, David Stephen & Brennhagen, Anders (2021). From Oslo to Grenoble in the search of next generation batteries. [Internet]. esrf.fr.
  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David Stephen; Sjåstad, Anja Olafsen; Ponniah, Vajeeston & Fjellvåg, Helmer (2021). Operando XRD studies on Bi2MoO6 as anode material for Na-ion batteries.
  • Brennhagen, Anders; Wragg, David; Fjellvåg, Helmer; Vajeeston, Ponniah; Sjåstad, Anja Olafsen & Cavallo, Carmen (2021). Beyond Insertion: Conversion alloying Bi/RGO-based materials as novel anodes for Na-ion batteries.
  • Brennhagen, Anders; Cavallo, Carmen; Wragg, David; Vajeeston, Ponniah; Sjåstad, Anja Olafsen & Fjellvåg, Helmer (2021). Bi4V2O11/RGO composite as conversion and alloying anode for Na-ion batteries.
  • Wragg, David; Fjellvåg, Øystein; Fjellvåg, Helmer; Sottmann, Jonas; Vaughan, Gavin B M & Di Michel, Marco [Show all 7 contributors for this article] (2020). Operando Total Scattering Computed Tomography: Making the Invisible Visible .
  • Wragg, David (2020). Beamline Facilities for Chemistry and Materials Science.
  • Cavallo, Carmen; Brennhagen, Anders; Wragg, David & Fjellvåg, Helmer (2020). Beyond Insertion: Conversion alloying Bi/RGO-based materials as anode for Na-ion batteries .
  • Wragg, David (2019). Be prepared!How an Advanced Home Lab can Improve Our Synchrotron Science.
  • Wragg, David; Ruud, Amund; Fjellvåg, Øystein; Fjellvåg, Helmer; lebedev, Oleg & Di Michel, Marco [Show all 9 contributors for this article] (2019). PDF Analysis of Batteries Using Diffraction Computed Tomography.
  • Wragg, David; Fjellvåg, Øystein; Ruud, Amund; Fjellvåg, Helmer; Vajeeston, Ponniah & Vaughan, Gavin B M [Show all 9 contributors for this article] (2019). XRD/PDF computed tomography and how to get the best possible operando data from ion batteries.
  • Wragg, David; Ruud, Amund; Fjellvåg, Helmer; Fjellvåg, Øystein; Vajeeston, Ponniah & Sottmann, Jonas [Show all 9 contributors for this article] (2019). PDF Analysis of Batteries Using Diffraction Computed Tomography.
  • Strandbakke, Ragnar; Wragg, David; Carvalho, Patricia; Mielewczyk-Gryn, Aleksandra; Wachowski, Sebastian & Balaguer, Maria [Show all 8 contributors for this article] (2018). Coupled hydration and red-ox in MIEC BGLC perovskites .
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Nyborg Broge, Nils Lau; Søndergaard-Pedersen, Frederik M; Lind, Anna Maria & Arstad, Bjørnar [Show all 9 contributors for this article] (2018). Real-Time Evolution of SAPO Catalysts' Local Coordination during Hydrothermal Treatment.
  • Wragg, David; Ruud, Amund; Sottmann, Jonas; Vajeeston, Ponniah; Fjellvåg, Helmer & Fjellvåg, Øystein [Show all 8 contributors for this article] (2018). New Anodes for Sodium and Lithium Ion Batteries.
  • Wragg, David; Sottmann, Jonas; Ruud, Amund; Fjellvåg, Helmer; Fjellvåg, Øystein & Vajeeston, Ponniah [Show all 9 contributors for this article] (2018). Operando X-ray Diffraction Studies of Battery Materials.
  • Wragg, David; Sottmann, Jonas; Ruud, Amund; Fjellvåg, Øystein & Vaughan, Gavin B M (2018). Combined refinement of XRD and PDF data from nanomaterials.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Hill, Adam; Lind, Anna Maria; Arstad, Bjørnar & Attfield, Martin P. [Show all 9 contributors for this article] (2017). CATalyst transformations and LIFEtime by in-situ techniques and modelling (CATLIFE).
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard & Sjåstad, Anja Olafsen [Show all 7 contributors for this article] (2017). Thermogravimetric analysis – a viable method for screening materials for the SEWGS process.
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard & Sjåstad, Anja Olafsen [Show all 7 contributors for this article] (2017). Dawsonite as sorbent for the SEWGS process.
  • 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 [Show all 7 contributors for this article] (2017). Finding new materials for the SEWGS process.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Lind, Anna Maria; Arstad, Bjørnar; Chernyshov, Dmitry & Wragg, David [Show all 7 contributors for this article] (2017). High time-resolution in-situ methods for tracking structural transformations in SAPO materials.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah & Ruud, Amund (2017). The intriguing mechanism of phosphorus anodes for sodium ion batteries Revealed by operando pair distribution function and X-ray diffraction computed tomography.
  • Arstad, Bjørnar; Lind, Anna Maria; Akporiaye, Duncan; Fuglerud, Terje; Grønvold, Arne & Kalantzopoulos, Georgios N. [Show all 9 contributors for this article] (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; Thorshaug, Knut; Cavka, Jasmina Hafizovic; Akporiaye, Duncan & Kalantzopoulos, Georgios N. [Show all 11 contributors for this article] (2016). Structural changes in the methanol-to-olefin (MTO) catalyst SAPO-34 after/during hydrothermal treatment .
  • 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.
  • 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.
  • 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?
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Emerich, Hermann; Fjellvåg, Helmer & Hermann, Matthias [Show all 9 contributors for this article] (2016). Size Matters: How crystallite size controls reaction path in the sodium bismuth anode system.
  • Lundvall, Fredrik; Kalantzopoulos, Georgios N.; Wragg, David; Arstad, Bjørnar; Blom, Richard & Sjåstad, Anja Olafsen [Show all 7 contributors for this article] (2016). Thermogravimetric analysis – a viable method for screening materials for the SEWGS process.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Hill, Adam; Lind, Anna Maria; Wragg, David & Arstad, Bjørnar [Show all 9 contributors for this article] (2016). Structural Characterization and Long-term Performance Understanding of SAPO Industrial Catalyst Materials.
  • Arstad, Bjørnar; Lind, Anna Maria; Cavka, Jasmina Hafizovic; Akporiaye, Duncan; Kalantzopoulos, Georgios N. & Lundvall, Fredrik [Show all 10 contributors for this article] (2016). Characterization of catalytic sites in microporous materials using solid-state NMR. An ex-situ and in-situ high temperature flow study. .
  • 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.
  • Kalantzopoulos, Georgios N.; Lundvall, Fredrik; Slawinski, Wojciech Andrzej; Lind, Anna Maria; Wragg, David & Arstad, Bjørnar [Show all 7 contributors for this article] (2015). Structural Characterization and Hydrothermal Stability of SAPO-34 and SAPO-37 Catalyst Materials.
  • Arstad, Bjørnar; Lind, Anna Maria; Thorshaug, Knut; Cavka, Jasmina Hafizovic; Akporiaye, Duncan & Kalantzopoulos, Georgios N. [Show all 11 contributors for this article] (2015). Studies of SAPO-34 during and after hydrothermal treatment.
  • Wragg, David (2015). Time and Space Resolved X-ray Diffraction for Catalytic Reactor Studies.
  • Wragg, David (2015). RECX:Applications for The Synchrotron and Neutron Community.
  • 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.
  • 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
  • Swang, Ole; Zokaie, Mahsa; Wragg, David; Grønvold, Arne; Fuglerud, Terje & Cavka, Jasmina Hafizovic [Show all 7 contributors for this article] (2013). Unit cell expansion upon coke formation in SAPO-34 catalyst: A combined experimental and computational study.
  • Smith, Rachel; Anderson, Michael W.; Attfield, Martin; Fjellvåg, Helmer; Slawinski, Wojciech Andrzej & Wragg, David [Show all 11 contributors for this article] (2013). MTO Catalysts: A New Toolbox For Characterising SAPO Intergrowths.
  • Sottmann, Jonas; Fjellvåg, Helmer; Wragg, David & Sartori, Sabrina (2017). Synchrotron Based Operando Methods for Characterization of Non-Aqueous Rechargeable Battery Electrode Materials. Universitetet i Oslo.

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Published Nov. 11, 2010 9:00 AM - Last modified Oct. 14, 2020 6:50 PM