Multifunctionality of Cu-ZnO-ZrO2/H-ZSM5 catalysts for the one-step CO2-to-DME hydrogenation reaction (Articolo in rivista)

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Label
  • Multifunctionality of Cu-ZnO-ZrO2/H-ZSM5 catalysts for the one-step CO2-to-DME hydrogenation reaction (Articolo in rivista) (literal)
Anno
  • 2015-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apcatb.2014.06.035 (literal)
Alternative label
  • Frusteri, Francesco; Cordaro, Manuela; Cannilla, Catia; Bonura, Giuseppe (2015)
    Multifunctionality of Cu-ZnO-ZrO2/H-ZSM5 catalysts for the one-step CO2-to-DME hydrogenation reaction
    in Applied catalysis. B, Environmental (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Frusteri, Francesco; Cordaro, Manuela; Cannilla, Catia; Bonura, Giuseppe (literal)
Pagina inizio
  • 57 (literal)
Pagina fine
  • 65 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.scopus.com/record/display.url?eid=2-s2.0-84904255119&origin=inward (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 162 (literal)
Rivista
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  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Consiglio Nazionale delle Ricerche (literal)
Titolo
  • Multifunctionality of Cu-ZnO-ZrO2/H-ZSM5 catalysts for the one-step CO2-to-DME hydrogenation reaction (literal)
Abstract
  • A series of Cu-ZnO-ZrO2/H-ZSM5 multifunctional catalysts for the one-step CO2-to-DME hydrogenationreaction was prepared via coprecipitation of methanol catalyst precursors by means of different precipi-tating agents (i.e., sodium bicarbonate, ammonium carbonate, oxalic acid and urea) in a slurry containingdispersed zeolite particles. The samples were characterized by XRF, XRD, N2adsorption/desorptionisotherms, SEM, N2O-titration, TPR and NH3/CO2TPD techniques, while the catalytic testing was car-ried out in a fixed-bed reactor operating at 3.0 MPa, in the TRrange 473-513 K and space velocity of10,000 h-1(CO2/H2/N2, 3/9/1). The experiments revealed that the preparation methodology significantlyaffects catalyst properties and hence catalyst activity. The multifunctional catalyst prepared via ammo-nium carbonate precipitation resulted to be the most active in CO2conversion, also accomplishing highDME selectivity, with a maximum space-time yield of 0.225 kgDME/kgcat/h. Catalyst characterization dis-closed that the strength of basic sites, the ratio between acid and basic sites along with the Cu particlesizes are crucial to achieve maximum catalytic performance, keeping CO selectivity to a minimum valueject] (literal)
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