Issue 19, 2018

Promoting effect of solvent on Cu/CoO catalyst for selective glycerol oxidation under alkaline conditions

Abstract

Cu/CoO catalysts were employed for the selective oxidation of glycerol in the aqueous phase under basic conditions. The effect of the solvent on the catalytic performance was investigated and the impact on the catalyst was thoroughly elucidated. Detailed characterization of the catalysts by HR-TEM, XRD, and XPS analysis before and after the reaction revealed that the addition of co-solvents (ethanol, n-propanol, or tert-butanol) drastically altered the catalyst properties. In particular, the amount of the catalytically active CoO(OH) phase generated during the reaction depends on the co-solvent used. Generally, the co-solvent has a beneficial effect on the catalytic activity and improves the glycerol conversion by a factor of up to 1.8, which could be linearly correlated to the ET(30) solvent polarity.

Graphical abstract: Promoting effect of solvent on Cu/CoO catalyst for selective glycerol oxidation under alkaline conditions

Supplementary files

Article information

Article type
Paper
Submitted
22 Jun 2018
Accepted
12 Aug 2018
First published
13 Aug 2018
This article is Open Access
Creative Commons BY license

Catal. Sci. Technol., 2018,8, 4891-4899

Promoting effect of solvent on Cu/CoO catalyst for selective glycerol oxidation under alkaline conditions

G. Dodekatos, J. Ternieden, S. Schünemann, C. Weidenthaler and H. Tüysüz, Catal. Sci. Technol., 2018, 8, 4891 DOI: 10.1039/C8CY01284A

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