Browsing Kjemisk institutt by Author "Redekop, Evgeniy"

Now showing items 1-10 of 10

  • A temporal analysis of products (TAP) study of C2-C4 alkene reactions with a well-defined pool of methylating species on ZSM-22 zeolite 
    Redekop, Evgeniy; Lazzarini, Andrea; Bordiga, Silvia; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Reactions between alkenes and methanol or dimethyl ether (DME) on zeolite catalysts are involved in industrial processes that are highly relevant for the transition to renewable carbon sources, such as the Methanol-To-Hydrocarbons ...
  • A toroidal Zr70 oxysulfate cluster and its diverse packing structures 
    Øien-Ødegaard, Sigurd; Bazioti, Kalliopi; Redekop, Evgeniy; Prytz, Øystein; Lillerud, Karl Petter; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Herein, we report the discovery of a toroidal inorganic cluster of zirconium(IV) oxysulfate of unprecedented size with the formula Zr70(SO4)58(O/OH)146⋅x(H2O) (Zr70), which displays different packing of ring units and thus ...
  • Acidity effect on benzene methylation kinetics over substituted H-MeAlPO-5 catalysts 
    Mortén, Magnus; Cordero Lanzac, Tomas; Cnudde, Pieter; Redekop, Evgeniy; Svelle, Stian; Van Speybroeck, Veronique; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Methylation of aromatic compounds is a key reaction step in various industrial processes such as the aromatic cycle of methanol-to-hydrocarbons chemistry. The study of isolated methylation reactions and of the influence ...
  • Experimental and theoretical evidence for promotional effect of acid sites on the diffusion of alkenes through small-pore zeolites 
    Cnudde, Pieter; Redekop, Evgeniy; Dai, Weili; Porcaro, Natale G.; Waroquier, Michel; Bordiga, Silvia; Hunger, Michael; Li, Landong; Olsbye, Unni; Van Speybroeck, Veronique (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The diffusion of saturated and unsaturated hydrocarbons is of fundamental importance for many zeolite-catalyzed processes. Transport of small alkenes in the confined zeolite pores can become hindered, resulting in a ...
  • Formation and functioning of bimetallic nanocatalysts: The power of X-ray probes 
    Filez, Matthias; Redekop, Evgeniy; Dendooven, Jolien; Ramachandran, Ranjith K.; Solano, Eduardo; Olsbye, Unni; Weckhuysen, Bert M.; Galvita, Vladimir V.; Poelman, Hilde; Detavernier, Christophe; Marin, Guy B. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Bimetallic nanocatalysts are key enablers of current chemical technologies, including car exhaust converters and fuel cells, and play a crucial role in industry to promote a wide range of chemical reactions. However, owing ...
  • Mapping the coke formation within a zeolite catalyst extrudate in space and time by operando computed X-ray diffraction tomography 
    Wragg, David Stephen; Kalantzopoulos, Georgios; Pappas, Dimitrios; Pinilla-Herrero, Irene; Rojo-Gama, Daniel; Redekop, Evgeniy; Di Michiel, Marco; Beato, Pablo; Lundegaard, Lars Fahl; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We have used operando X-ray diffraction computed tomography (XRD-CT) analysed by rigorous crystallographic methods to reveal the behaviour of a zeolite/alumina based catalyst extrudate in the methanol-to-hydrocarbon reaction ...
  • Parametric sensitivity analysis of the transient adsorption-diffusion models for hydrocarbon transport in microporous materials 
    Shostak, Vladyslav; Redekop, Evgeniy; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The complex nature of hydrocarbon transport in microporous materials offers unique challenges for the description of transient kinetic data in catalysis by e.g. acidic zeolites and zeotypes. Currently, very few models in ...
  • Transitioning from Methanol to Olefins (MTO) toward a Tandem CO2 Hydrogenation Process: On the Role and Fate of Heteroatoms (Mg, Si) in MAPO-18 Zeotypes 
    Cordero Lanzac, Tomas; Capel Berdiell, Izar; Airi, Alessia; Chung, Sang-Ho; Mancuso, Jenna; Redekop, Evgeniy; Fabris, Claudia; Figueroa-Quintero, Leidy; Navarro, Juan Carlos (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    The tandem CO2 hydrogenation to hydrocarbons over mixed metal oxide/zeolite catalysts (OXZEO) is an efficient way of producing value-added hydrocarbons (platform chemicals and fuels) directly from CO2 via methanol intermediate ...
  • Truth is, we all are transients: A perspective on the time-dependent nature of reactions and those who study them 
    Redekop, Evgeniy; Yablonsky, Gregory S.; Gleaves, John T. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Understanding and mastery of Transient Kinetics in the context of multi-scale transport-reaction systems employed in catalysis is one of the ultimate frontiers in chemical science and engineering. In this perspective, we ...
  • Zn Redistribution and Volatility in ZnZrOx Catalysts for CO2 Hydrogenation 
    Redekop, Evgeniy; Cordero-Lanzac, Tomás; Salusso, Davide; Pokle, Anuj; Øien-Ødegaard, Sigurd; Sunding, Martin Fleissner; Diplas, Spyridon; Negri, Chiara; Borfecchia, Elisa; Bordiga, Silvia; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    ZnO–ZrO2 mixed oxide (ZnZrOx) catalysts are widely studied as selective catalysts for CO2 hydrogenation into methanol at high-temperature conditions (300–350 °C) that are preferred for the subsequent in situ zeolite-catalyzed ...