Browsing Kjemisk institutt by Author "Bordiga, Silvia"

Now showing items 1-20 of 29

  • 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 ...
  • Catalyst sites and active species in the early stages of MTO conversion over cobalt AlPO-18 followed by IR spectroscopy 
    Airi, Alessia; Damin, Alessandro; Xie, Jingxiu; Olsbye, Unni; Bordiga, Silvia (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The isomorphic insertion of cobalt(II) confers strong acidity to the AlPO-18 zeotype. This makes it a suitable catalyst for the acid catalysed conversion of methanol to olefins (MTO). However, due to the tendency of Co(II) ...
  • Co-catalyst free ethene dimerization over Zr-based metal-organic framework (UiO-67) functionalized with Ni and bipyridine 
    Kømurcu, Mustafa; Lazzarini, Andrea; Kaur, Gurpreet; Borfecchia, Elisa; Øien-Ødegaard, Sigurd; Gianolio, Diego; Bordiga, Silvia; Lillerud, Karl Petter; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Ni functionalized metal organic frameworks (MOF) are promising heterogeneous ethene dimerization catalysts. Activities comparable to or higher than Ni-aluminosilicates have been reported in literature. However, unlike the ...
  • Comparing the Nature of Active Sites in Cu-loaded SAPO-34 and SSZ-13 for the Direct Conversion of Methane to Methanol 
    Kvande, Karoline; Pappas, Dimitrios; Dyballa, Michael Martin; Buono, Carlo; Signorile, Matteo; Borfecchia, Elisa; Lomachenko, Kirill A.; Arstad, Bjørnar; Bordiga, Silvia; Berlier, Gloria; Olsbye, Unni; Beato, Pablo; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    On our route towards a more sustainable future, the use of stranded and underutilized natural gas to produce chemicals would be a great aid in mitigating climate change, due to the reduced CO2 emissions in comparison to ...
  • Computational Assessment of Relative Sites Stabilities and Site-Specific Adsorptive Properties of Titanium Silicalite-1 
    Signorile, Matteo; Damin, Alessandro; Bonino, Francesca; Crocella, Valentina; Ricchiardi, Gabriele; Lamberti, Carlo; Bordiga, Silvia (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Titanium Silicalite-1 (TS-1), because of its crystalline structure and its well-defined Ti sites, represents the prototype of a single site catalyst. According to this fundamental aspect and to the relevant role of TS-1 ...
  • Controlling the Synthesis of Metal−Organic Framework UiO-67 by Tuning Its Kinetic Driving Force 
    Kaur, Gurpreet; Øien-Ødegaard, Sigurd; Lazzarini, Andrea; Chavan, Sachin Maruti; Bordiga, Silvia; Lillerud, Karl Petter; Olsbye, Unni (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    The successful synthesis of metal−organic framework (MOF) compounds relies on an intricate interplay between the components of the synthesis liquor at the given synthesis conditions. Herein, we explore the interdependence ...
  • Conversion of methanol to hydrocarbons over zeolite ZSM-23 (MTT): Exceptional effects of particle size on catalyst lifetime. 
    Molino, Andrea; Lukaszuk, Katarzyna Anna; Rojo-Gama, Daniel; Lillerud, Karl Petter; Olsbye, Unni; Bordiga, Silvia; Svelle, Stian; Beato, Pablo (Journal article / Tidsskriftartikkel / SubmittedVersion, 2017)
    A variety of synthetic procedures have been used to obtain zeolite ZSM-23 (MTT) catalysts with crystallite sizes ranging from the micrometer to nanometer scale. When the acidic zeolite is used as catalyst for the Methanol ...
  • Copper Pairing in the Mordenite Framework as a Function of the CuI/CuII Speciation 
    Deplano, Gabriele; Martini, Andrea; Signorile, Matteo; Borfecchia, Elisa; Crocellà, Valentina; Svelle, Stian; Bordiga, Silvia (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    A series of gas-phase reactants is used to treat a Cu-exchanged mordenite zeolite with the aim of studying the influence of the reaction environment on the formation of Cu pairs. The rearrangement of Cu ions to form ...
  • Cu-CHA – a model system for applied selective redox catalysis 
    Borfecchia, Elisa; Beato, Pablo; Svelle, Stian; Olsbye, Unni; Lamberti, Carlo; Bordiga, Silvia (Journal article / Tidsskriftartikkel / SubmittedVersion, 2018)
    We review the structural chemistry and reactivity of copper-exchanged molecular sieves with chabazite (CHA) topology, as an industrially applied catalyst in ammonia mediated reduction of harmful nitrogen oxides (NH3-SCR) ...
  • Cu-loaded zeolites enable the selective activation of ethane to ethylene at low temperatures and pressure 
    Kvande, Karoline; Prodinger, Sebastian; Solemsli, Bjørn Gading; Bordiga, Silvia; Borfecchia, Elisa; Olsbye, Unni; Beato, Pablo; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Sending ethane over Cu-oxo sites in zeolites allows for the selective formation of ethylene in a stepwise reaction at mild conditions. Experimental results indicate that the reaction proceeds via the formation of ethanol ...
  • Effect of Benzoic Acid as a Modulator in the Structure of UiO-66: An Experimental and Computational Study 
    Atzori, Cesare; Shearer, Greig Charles; Maschio, Lorenzo; Civalleri, Bartolomeo; Bonino, Francesca; Lamberti, Carlo; Svelle, Stian; Lillerud, Karl Petter; Bordiga, Silvia (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    The identification and quantification of defects are undoubtedly thorough challenges in the characterization of “defect-engineered” metal–organic frameworks (MOFs). UiO-66, known for its exceptional stability and defect ...
  • Evolution of Pt and Pd species in functionalized UiO-67 metal-organic frameworks 
    Bugaev, Aram L.; Skorynina, Alina A.; Braglia, Luca; Lomachenko, Kirill A.; Guda, Alexander; Lazzarini, Andrea; Bordiga, Silvia; Olsbye, Unni; Lillerud, Karl Petter; Soldatov, Alexander V.; Lamberti, Carlo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    Functionalization of metal-organic frameworks (MOFs) with noble metals is a promising way for producing new versatile catalysts that will combine the outstanding porosity and specific surface area of MOFs with high catalytic ...
  • 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 ...
  • From Lab to Technical CO2 Hydrogenation Catalysts: Understanding PdZn Decomposition 
    Ticali, Pierfrancesco; Salusso, Davide; Airi, Alessia; Morandi, Sara; Borfecchia, Elisa; Ramirez, Adrian; Cordero-Lanzac, Tomas; Gascon, Jorge; Olsbye, Unni; Joensen, Finn; Bordiga, Silvia (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The valorization of CO2 to produce high-value chemicals, such as methanol and hydrocarbons, represents key technology in the future net-zero society. Herein, we report further investigation of a PdZn/ZrO2 + SAPO-34 catalyst ...
  • High Zn/Al ratios enhance dehydrogenation vs hydrogen transfer reactions of Zn-ZSM-5 catalytic systems in methanol conversion to aromatics 
    Pinilla-Herrero, Irene; Borfecchia, Elisa; Holzinger, Julian; Mentzel, Uffe V.; Joensen, Finn; Lomachenko, Kirill A.; Bordiga, Silvia; Lamberti, Carlo; Berlier, Gloria; Olsbye, Unni; Svelle, Stian; Skibsted, Jørgen; Beato, Pablo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2018)
    Two series of Zn-ZSM-5 catalysts were prepared by ion exchanging two commercial zeolites with different Si/Al ratios (40 and 15) with increasing Zn loadings. The nature of the Zn sites in the zeolite was studied by ...
  • Hydrogenation of CO2 to Methanol by Pt Nanoparticles Encapsulated in UiO-67: Deciphering the Role of the Metal–Organic Framework 
    Gutterød, Emil Sebastian; Lazzarini, Andrea; Fjermestad, Torstein; Kaur, Gurpreet; Manzoli, Maela; Bordiga, Silvia; Svelle, Stian; Lillerud, Karl Petter; Skúlason, Egill; Øien-Ødegaard, Sigurd; Nova, Ainara; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Metal–organic frameworks (MOFs) show great prospect as catalysts and catalyst support materials. Yet, studies that address their dynamic, kinetic, and mechanistic role in target reactions are scarce. In this study, an ...
  • Influence of Cu-speciation in mordenite on direct methane to methanol conversion: Multi-Technique characterization and comparison with NH3 selective catalytic reduction of NOx 
    Pappas, Dimitrios; Kvande, Karoline; Kalyva, Maria Evangelou; Dyballa, Michael Martin; Lomachenko, Kirill A.; Arstad, Bjørnar; Borfecchia, Elisa; Bordiga, Silvia; Olsbye, Unni; Beato, Pablo; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The direct conversion of methane to methanol has the potential of substantially reducing methane emissions and flaring, as such a process might provide an alternative for remote natural gas locations. In this report, we ...
  • MAPO-18 Catalysts for the Methanol to Olefins Process: Influence of Catalyst Acidity in a High-Pressure Syngas (CO and H2) Environment 
    Xie, Jingxiu; Firth, Daniel Sean; Cordero Lanzac, Tomas; Airi, Alessia; Negri, Chiara; Øien-Ødegaard, Sigurd; Lillerud, Karl Petter; Bordiga, Silvia; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The transition from integrated petrochemical complexes toward decentralized chemical plants utilizing distributed feedstocks calls for simpler downstream unit operations. Less separation steps are attractive for future ...
  • Methane to methanol: structure-activity relationships for Cu-CHA 
    Pappas, Dimitrios; Borfecchia, Elisa; Dyballa, Michael Martin; Pankin, Ilia A.; Lomachenko, Kirill A.; Martini, Andrea; Signorile, Matteo; Teketel, Shewangizaw; Arstad, Bjørnar; Berlier, Gloria; Lamberti, Carlo; Bordiga, Silvia; Olsbye, Unni; Lillerud, Karl Petter; Svelle, Stian; Beato, Pablo (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2017)
    Cu-exchanged zeolites possess active sites that are able to cleave the C–H bond of methane at temperatures ≤200 °C, enabling its selective partial oxidation to methanol. Herein we explore this process over Cu-SSZ-13 ...
  • On the conversion of CO2 to value added products over composite PdZn and H-ZSM-5 catalysts: excess Zn over Pd, a compromise or a penalty? 
    Ahoba-Sam, Christian; Borfecchia, Elisa; Lazzarini, Andrea; Bugaev, Aram L.; Isah, Abdulrahman Adamu; Taoufik, Mostafa; Bordiga, Silvia; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    A challenge in converting CO2 into hydrocarbons (HC) via methanol (MeOH) is the gap between the optimal temperature for each step (i.e. ≤250 °C for MeOH and ≥350 °C for HC). The focus of this study is to elucidate the cause ...