期刊
RSC ADVANCES
卷 6, 期 103, 页码 101277-101282出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra21795h
关键词
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资金
- National Natural Science Foundation of China (NNSFC) [21403273]
- National Key Basic Research Program of China [2012CB215305]
- Science Foundation of Shanxi Province [2013011010-6]
Graphene oxide (GO) sheets are emerging as a new class of carbocatalyst, and also a perfect platform for molecular engineering. The hydroxyl groups on either side of GO sheets can function as anchors by employing them as scaffolds linking organometallic nodes and vanadium-oxo was homogeneously immobilized on a Schiff base modified GO support via covalent bonding. The developed VO-NH2-GO was shown to be an efficient and recyclable heterogeneous catalyst for the aerobic oxidation of 5hydroxymethylfurfural (HMF) into maleic anhydride. Up to 95.3% yield of maleic anhydride from HMF and 62.4% from furfural were achieved under optimized reaction conditions. The immobilized vanadium oxo was identified as the active sites, while the residual oxygen-containing groups worked synergistically to adsorb HMF to maintain a high reactant concentration around the catalyst. The STY value was enhanced significantly over VO-NH2-GO, compared with homogeneous or heterogeneous traditional supported V based catalyst.
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