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Efficient Cross-Coupling of Acetone with Linear Aliphatic Alcohols over Supported Copper on a Fluorite-Type Pr2Zr2O7open access

Authors
Lim, SuhyunKim, MinseokKo, Sang HyeokLee, Jae-HongBaik, Joon HyunSuh, Young-Woong
Issue Date
Oct-2022
Publisher
MDPI
Keywords
cross-coupling; acetone; linear aliphatic alcohols; copper; Pr2Zr2O7
Citation
CATALYSTS, v.12, no.10
Journal Title
CATALYSTS
Volume
12
Number
10
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/152379
DOI
10.3390/catal12101279
ISSN
2073-4344
2073-4344
Abstract
In cross-coupling of biomass-derived acetone and alcohols contributing to the production of carbon-elongated chemicals and fuels, the essential catalyst components are metal dispersion for alcohol dehydrogenation and, more importantly, basicity for carbon-carbon coupling. Herein, we report the potential of co-precipitated praseodymia-zirconia solid solution (Pr2Zr2O7) as a support of Cu catalyst for the conversion of acetone and butanol into C-7 and C-11 products. Cu/Pr2Zr2O7 exhibits a high yield of C-7 and C-11 (ca. 84%) compared to Cu/ZrO2 and Cu/PrO1.83. Moreover, it is robust under the employed solvent-free conditions owing to a solid solution of Pr2Zr2O7 compared to PrO1.83 showing phase transition to PrOHCO3. It is also tolerant to up to 5 wt % water of the reactant mixture, recyclable once adequate post-treatment is employed after the reaction, and can convert the acetone-butanol-ethanol mixture into C-5-C-11 products at the nearly equivalent yield (82%) to the acetone-butanol mixture. Therefore, the Cu/Pr2Zr2O7 reported herein is an efficient catalyst for the coupling of acetone with linear aliphatic alcohols into biofuel precursors.
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공과대학 (화공생명공학부)
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