Browsing Kjemisk institutt by Author "Lundegaard, Lars F."

Now showing items 1-3 of 3

  • Real-time regeneration of a working zeolite monitored via operando X-ray diffraction and crystallographic imaging: how coke flees the MFI framework 
    Kalantzopoulos, Georgios; Rojo Gama, Daniel; Pappas, Dimitrios; Dovgaliuk, Iurii; Olsbye, Unni; Beato, Pablo; Lundegaard, Lars F.; Wragg, David Stephen; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    We have monitored the regeneration of H-ZSM-5 via operando time-resolved powder X-Ray diffraction (PXRD) coupled with mass spectroscopy (MS). Parametric Rietveld refinements and calculation of the extra-framework electronic ...
  • Tracking Lattice Distortion Induced by Defects and Framework Tin in Beta Zeotypes 
    Bai, Yunfei; Taarning, Esben; Luthra, Mahika; Lundegaard, Lars F.; Katerinopoulou, Anna; Falsig, Hanne; Nova Flores, Ainara; Martinez-Espin, Juan S. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    The use of powder X-ray diffraction (PXRD) coupled with lattice parameter refinement is used to investigate the crystal structure of Sn-Beta materials. A newly developed semiempirical PXRD model with a reduced tetragonal ...
  • Tracking Structural Deactivation of H-Ferrierite Zeolite Catalyst During MTH with XRD 
    Berdiell, Izar Capel; Braghin, Giorgio Bruno; Cordero-Lanzac, Tomas; Beato, Pablo; Lundegaard, Lars F.; Wragg, David Stephen; Bordiga, Silvia; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract We used the methanol-to-hydrocarbon (MTH) reaction as a shape-selective model reaction to investigate coke formation in zeolite H-Ferrierite. Despite being a 2D topology in terms of channel propagation, the FER ...