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- W24727606 abstract "ABSTRACT Methanol synthesis by hydrogenation of CO and CO2 over Cu/ZnO catalysts reduced at various temperatures has been studied using X-ray diffraction (XRD) and transmission electron microscopy (TEM). Specific activity for CO Hydrogenation decreased with increasing reduction temperature of Cu/ZnO. On the contrary the activity for CO2 hydrogenation increased with the reduction temperature. Structural analysis by means of XRD and TEM indicates the formation of binary Cu-Zn alloy when the Cu/ZnO were reduced at temperatures above 600 K. It was found that the Cu-Zn alloying caused an increase in the activity of methanol synthesis by hydrogenation of CO2. However, the alloying caused a decrease in the catalytic activity by hydrogenation of CO. Doping Cu/ZnO with palladium enabled to prepare either a binary Cu-Zn or a ternary Cu-Zn-Pd alloy at low reduction temperature of 523 K where the formation of the Cu-Zn alloy was hardly observed for the Pd-free Cu/ZnO catalysts. The alloying also enhanced the activity of methanol synthesis by CO2 hydrogenation, but lowered the activity for CO hydrogenation." @default.
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- W24727606 date "1994-01-01" @default.
- W24727606 modified "2023-09-28" @default.
- W24727606 title "Catalytic Conversion of Carbon Dioxide to Methanol over Palladium-promoted Cu/ZnO Catalysts" @default.
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- W24727606 doi "https://doi.org/10.1016/b978-1-85573-799-0.50016-9" @default.
- W24727606 hasPublicationYear "1994" @default.
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