Journal article
Highly Selective Aerobic Oxidation of 5-Hydroxymethyl Furfural into 2,5-Diformylfuran over Mn-Co Binary Oxides
Technical University of Denmark1
Department of Chemistry, Technical University of Denmark2
East China University of Science and Technology3
Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark4
Organic Chemistry, Department of Chemistry, Technical University of Denmark5
A series of Mn−Co binary oxides were prepared by a simple thermal decomposition procedure and evaluated for the aerobic oxidation of 5-hydroxymethylfurfural (HMF) into 2,5-diformylfuran (DFF). Investigation of the effects of metal amounts and calcination temperatures of the prepared catalysts revealed that the Mn−Co binary oxide with a Mn/Co molar ratio of 1/1 showed the best catalytic performance yielding 42.6 % HMF conversion along with 98 % selectivity to DFF after 2 h of reaction.
The as-prepared catalysts were characterized by nitrogen physisorption, X-ray powder diffraction (XRD), hydrogen temperature-programmed reduction (H2-TPR) and X-ray photoelectron spectroscopy (XPS). These results indicated that the Mn−Co binary oxides could increase the Mn4+/Mn3+ atomic ratio and the exposed lattice oxygen content on the surface, thus accelerating the HMF oxidation into DFF.
Furthermore, the Mn−Co binary oxides proved to be reusable in five consecutive reaction runs without significant loss of activity.
| Language: | English |
|---|---|
| Year: | 2017 |
| Pages: | 6632-6639 |
| ISSN: | 23656549 |
| Types: | Journal article |
| DOI: | 10.1002/slct.201701325 |
| ORCIDs: | Riisager, Anders and Schill, Leonhard |
