Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12494/41383
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Title: Effect of Acidity, Basicity and ZrO2 Phases of Cu-Ni/ZrO2 Catalysts on the Direct Synthesis of Diethyl Carbonate from CO2 and Ethanol
Author: Arbelaez Perez, Oscar Felipe
Orrego A.
Bustamante F.
Villa A.L.
Email autor: oscar.arbelaez@campusucc.edu.co
Issue Date: 2016
Keywords: Carbon dioxide
Carbonation
Catalyst activity
Catalyst selectivity
Catalysts
Ethanol
Zirconia
Zirconium alloys
Bimetallic catalysts
Crystalline properties
Diethyl carbonates
Direct synthesis
Equilibrium conversion
High selectivity
Molar ratio
Raman studies
Nickel
Abstract: Cu-Ni/ZrO2 catalysts with different Cu:Ni molar ratios were synthesized and tested in the direct synthesis of diethyl carbonate from carbon dioxide and ethanol. The effect of Cu:Ni molar ratio on the acidity and basicity of the catalysts was investigated using NH3 and CO2-TPD, respectively. Experimental results revealed that Cu:Ni-3:1/ZrO2 and Cu:Ni-2:1/ZrO2 samples exhibited the largest acidity and basicity, as well as the highest yield to diethyl carbonate. In particular, these catalysts displayed very-high selectivity (i.e., larger than 95 %) and activity (i.e., equilibrium conversions are attained). Additionally, XRD and Raman studies showed that structural and crystalline properties of ZrO2 were modified with Cu:Ni ratios of 3:1 and 2:1 (Cu:Ni-1:1/ZrO2, Cu:Ni-1:2/ZrO2) which was related to the improved catalytic activity in comparison to Cu:Ni-1:1/ZrO2, Cu:Ni-1:2/ZrO2, Cu:Ni-1:3/ZrO2 and ZrO2. © 2016 Springer Science+Business Media.
Type: Artículo
Citation: Arbeláez O,Orrego A,Bustamante F,Villa AL. Effect of Acidity, Basicity and ZrO2 Phases of Cu-Ni/ZrO2 Catalysts on the Direct Synthesis of Diethyl Carbonate from CO2 and Ethanol. Catal Letters. 2016. 146. (4):p. 725-733. .
Other Identifiers: https://doi.org/10.1007/s10953-013-0058-y
Appears in Collections:Artículos Científicos

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