Soybean Oil Epoxidation Catalyzed by a Functionalized Metal–Organic Framework with Active Dioxo-Molybdenum (VI) Centers

In this work, a functionalized gallium metal–organic framework with active dioxo-molybdenum (VI) centers was evaluated as a catalyst in the epoxidation of soybean oil using tert-butyl-hydroperoxide as an oxidizing agent. The influence of the reaction time, temperature, and concentration of the oxidi...

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Bibliographic Details
Published in:Catalysis letters 2023-06, Vol.153 (6), p.1756-1772
Main Authors: Martínez R., Diana C., Trujillo, Carlos A., Carriazo, Jose G., Castellanos, Nelson J.
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Chemistry
Chemistry and Materials Science
Diffraction
Enzymes
Epoxidation
Gallium
Industrial Chemistry/Chemical Engineering
Infrared analysis
Infrared spectroscopy
Ligands
Metal-organic frameworks
Metals
Molybdenum
Organometallic Chemistry
Oxidation
Oxidizing agents
Physical Chemistry
Scanning electron microscopy
Soybean oil
Soybeans
Spectrum analysis
Stability analysis
Stability tests
Thermogravimetric analysis
Vegetable oils
X ray powder diffraction
X-ray spectroscopy
X-rays
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Summary:In this work, a functionalized gallium metal–organic framework with active dioxo-molybdenum (VI) centers was evaluated as a catalyst in the epoxidation of soybean oil using tert-butyl-hydroperoxide as an oxidizing agent. The influence of the reaction time, temperature, and concentration of the oxidizing agent was studied, and it was demonstrated that the highest epoxide selectivity was obtained at 110 °C after 4 h of reaction (29% conversion and 91% selectivity) using a soybean oil/oxidizing agent ratio of 1/2. The stability of the metal–organic framework was confirmed by infrared spectroscopy, X-ray powder diffraction, thermogravimetric analysis, scanning electron microscopy, and energy-dispersive X-ray spectroscopy EDS. The stability tests demonstrated that the catalyst could be reused in the catalytic process for the recovery of vegetable oils. Graphical Abstract
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-022-04096-y