http://www.cnr.it/ontology/cnr/individuo/prodotto/ID55380
Synthesis Characterization and Activity Pattern of Cu-ZnO/ZrO2 Catalysts in the Hydrogenation of Carbon Dioxide to Methanol (Articolo in rivista)
- Type
- Label
- Synthesis Characterization and Activity Pattern of Cu-ZnO/ZrO2 Catalysts in the Hydrogenation of Carbon Dioxide to Methanol (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.jcat.2007.04.003 (literal)
- Alternative label
Arena, F. ; Barbera, K. ; Italiano, G. ; Bonura, G. ; Spadaro, L. ; Frusteri, F. (2007)
Synthesis Characterization and Activity Pattern of Cu-ZnO/ZrO2 Catalysts in the Hydrogenation of Carbon Dioxide to Methanol
in Journal of catalysis (Print); Elsevier, Amsterdam (Paesi Bassi)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Arena, F. ; Barbera, K. ; Italiano, G. ; Bonura, G. ; Spadaro, L. ; Frusteri, F. (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR-ITAE \"Nicola Giordano\", Messina-Italy ;
Università di Messina, Dip. di Chimica Industriale, Messina-Italy (literal)
- Titolo
- Synthesis Characterization and Activity Pattern of Cu-ZnO/ZrO2 Catalysts in the Hydrogenation of Carbon Dioxide to Methanol (literal)
- Abstract
- A novel synthesis route based on reverse co-precipitation under ultrasound irradiation has led to Cu-ZnO/ZrO2 catalysts (Znat/Cuat, 0-3; ZrO2, 42-44 wt%) with a remarkable development of total surface area (SABET, 120-180 m2/g) and very high dispersion (3-58%) and exposure (MSA 9-63 m2/g) of the active Cu phase. The activity pattern in the hydrogenation of CO2 to CH3OH (TR, 433-533 K; PR, 1.0-3.0 MPa) was addressed in comparison with a commercial Cu-ZnO/Al2O3 methanol synthesis catalyst. Volcano-shaped trends in total and metal surface area
signal an optimum zinc loading (Zn/Cu, 0.3-0.7), ensuring higher concentration of active sites and methanol productivity values, whereas the basic relationships among dispersion, reducibility, and TOF indicate a structurally sensitive character of the title reaction and a superior reactivity of poorly dispersed Cu particles. Thermodynamic analysis of the reaction stream revealed that methanol formation proceeds along a parallel path, whereas a stronger \"water affinity\" accounts for the poorer performance of the conventional alumina-based catalyst compared with zirconia-based ones. (literal)
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