title: Three-phase catalytic system of H2O, ionic liquid, and VOPO4-SiO2 solid acid for conversion of fructose to 5-hydroxymethylfurfural.
abstract: Efficient transformation of biomass-derived feedstocks to chemicals and fuels remains a daunting challenge in utilizing biomass as alternatives to fossil resources. A three-phase catalytic system, consisting of an aqueous phase, a hydrophobic ionic-liquid phase, and a solid-acid catalyst phase of nanostructured vanadium phosphate and mesostructured cellular foam (VPO-MCF), is developed for efficient conversion of biomass-derived fructose to 5-hydroxymethylfurfural (HMF). HMF is a promising, versatile building block for production of value-added chemicals and transportation fuels. The essence of this three-phase system lies in enabling the isolation of the solid-acid catalyst from the aqueous phase and regulation of its local environment by using a hydrophobic ionic liquid, 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([BMIM][Tf2N]). This system significantly inhibits the side reactions of HMF with H2O and leads to 91 mol % selectivity to HMF at 89 % of fructose conversion. The unique three-phase catalytic system opens up an alternative avenue for making solid-acid catalyst systems with controlled and locally regulated microenvironment near catalytically active sites by using a hydrophobic ionic liquid.
authors.affiliation: Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237 (China); Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (USA).
authors.forename: Chengcheng
authors.initials: C
authors.lastname: Tian
authors.forename: Xiang
authors.initials: X
authors.lastname: Zhu
authors.forename: Song-Hai
authors.initials: SH
authors.lastname: Chai
authors.forename: Zili
authors.initials: Z
authors.lastname: Wu
authors.forename: Andrew
authors.initials: A
authors.lastname: Binder
authors.forename: Suree
authors.initials: S
authors.lastname: Brown
authors.forename: Lin
authors.initials: L
authors.lastname: Li
authors.forename: Huimin
authors.initials: H
authors.lastname: Luo
authors.forename: Yanglong
authors.initials: Y
authors.lastname: Guo
authors.forename: Sheng
authors.initials: S
authors.lastname: Dai
mesh_terms: D002384:Catalysis; D005632:Fructose / Q000737:chemistry*; D005662:Furaldehyde / Q000031:analogs & derivatives* / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry; D052578:Ionic Liquids / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013449:Sulfonamides; D017968:Vanadium Compounds / Q000737:chemistry*; D014867:Water / Q000737:chemistry
chemical_list: C493485:1-butyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)amide; D007093:Imidazoles; D052578:Ionic Liquids; D013449:Sulfonamides; D017968:Vanadium Compounds; D014867:Water; D005632:Fructose; C008046:5-hydroxymethylfurfural; D012822:Silicon Dioxide; D005662:Furaldehyde
keywords: 5-hydroxymethylfurfural; biomass; fructose; ionic liquids; solid acid catalysts; vanadium phosphate