Effects of Reaction Parameters in Catalysis of Glycerol Oxidation by Citrate-Stabilized Gold Nanoparticles |
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| Authors: | Pakorn Suramanee Sirilux Poompradub Rojrit Rojanathanes Patchanita Thamyongkit |
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| Affiliation: | (1) Department of Chemical Technology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand;(2) Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand;(3) Center for Petroleum, Petrochemical and Advance Materials, Chulalongkorn University, Bangkok, 10330, Thailand; |
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| Abstract: | Abstract This work describes a catalytic oxidation of glycerol using citrate-stabilized gold nanoparticles (citrate-AuNPs) having a
mean diameter of 22 ± 3 nm. A careful product analysis was performed by mean of high-performance liquid chromatography, liquid
chromatography–mass spectrometry and nuclear magnetic resonance spectroscopy. Effects of reaction temperature, oxygen pressure,
catalyst and reactant concentration, and NaOH/glycerol molar ratio on glycerol conversion, and product yields were investigated.
The glycerol conversion and glyceric acid yield were optimum when the oxidation was performed using 0.6 M glycerol and NaOH
at 80 °C under 3 bar of O2 pressure in the presence of 50 ppm citrate-AuNPs catalyst for 3 h. |
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