Efficient aerobic oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid on Ru/C catalysts
Science China Chemistry, ISSN: 1869-1870, Vol: 60, Issue: 7, Page: 950-957
2017
- 55Citations
- 40Captures
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Metrics Details
- Citations55
- Citation Indexes55
- 55
- CrossRef13
- Captures40
- Readers40
- 40
Article Description
2,5-Furandicarboxylic (FDCA) is a potential substitute for petroleum-derived terephthalic acid, and aerobic oxidation of 5-hydroxymethylfurfural (HMF) provides an efficient route to synthesis of FDCA. On an activated carbon supported ruthenium (Ru/C) catalyst (with 5 wt% Ru loading), HMF was readily oxidized to FDCA in a high yield of 97.3% at 383 K and 1.0 MPa O in the presence of Mg(OH) as base additive. Ru/C was superior to Pt/C and Pd/C and also other supported Ru catalysts with similar sizes of metal nanoparticles (1–2 nm). The Ru/C catalysts were stable and recyclable, and their efficiency in the formation of FDCA increased with Ru loadings examined in the range of 0.5 wt%–5.0 wt%. Based on the kinetic studies including the effects of reaction time, reaction temperature, O pressure, on the oxidation of HMF to FDCA on Ru/C, it was confirmed that the oxidation of HMF to FDCA proceeds involving the primary oxidation of HMF to 2,5-diformylfuran (DFF) intermediate, and its sequential oxidation to 5-formyl-2-furancarboxylic acid (FFCA) and ultimately to FDCA, in which the oxidation of FFCA to FDCA is the rate-determining step and dictates the overall formation rate of FDCA. This study provides directions towards efficient synthesis of FDCA from HMF, for example, by designing novel catalysts more efficient for the involved oxidation step of FFCA to FDCA.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85019209666&origin=inward; http://dx.doi.org/10.1007/s11426-016-0489-3; http://link.springer.com/10.1007/s11426-016-0489-3; http://link.springer.com/content/pdf/10.1007/s11426-016-0489-3.pdf; http://link.springer.com/article/10.1007/s11426-016-0489-3/fulltext.html; https://dx.doi.org/10.1007/s11426-016-0489-3; https://link.springer.com/article/10.1007/s11426-016-0489-3; http://sciencechina.cn/gw.jsp?action=cited_outline.jsp&type=1&id=6041119&internal_id=6041119&from=elsevier
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