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    Single Pot Selective Hydrogenation of Furfural to 2-Methylfuran Over Carbon Supported Iridium Catalysts

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    Type
    Article
    Authors
    Date, Nandan S
    Hengne, Amol Mahalingappa
    Huang, Kuo-Wei cc
    Chikate, Rajeev C.
    Rode, C. V.
    KAUST Department
    Chemical Science Program
    Homogeneous Catalysis Laboratory (HCL)
    KAUST Catalysis Center (KCC)
    Physical Science and Engineering (PSE) Division
    Date
    2018
    Permanent link to this record
    http://hdl.handle.net/10754/627391
    
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    Abstract
    Various iridium supported carbon catalysts were prepared and screened for direct hydrogenation of furfural (FFR) to 2-methyl furan (2-MF). Amongest these, 5% Ir/C showed excellent results with complete FFR conversion and highest selectivity of 95% to 2-MF at very low H2 pressure of 100 psig. Metallic (Iro) and oxide ( IrO2) phases of Ir catalyzed first step hydrogenation involving FFR to FAL and subsequent hydrogenation to 2-MF,respecively. This was confirmed by XPS analysis and some controlled experiments. At low temperature of 140 oC, almost equal selectivities of FAL (42%) and 2-MF (43%) were observed, while higher temperature (220oC) favored selective hydrodeoxygenation. At optimized temperature, 2-MF formed selectively while higher pressure and higher catalyst loading favored ring hydrogenation of furfural rather than side chain hydrogenation. With combination of several control experimental results and detailed catalyst characterization, a plausible reaction pathway has been proposed for selective formation of 2-MF. The selectivity to various other products in FFR hydrogenation can be manipulated by tailoring the reaction conditions over the same catalyst.
    Citation
    Date NS, Hengne A, Huang K-W, Chikate RC, Rode CV (2018) Single Pot Selective Hydrogenation of Furfural to 2-Methylfuran Over Carbon Supported Iridium Catalysts. Green Chemistry. Available: http://dx.doi.org/10.1039/c8gc00284c.
    Sponsors
    One of the authors NSD gratefully acknowledges Department of Science and Technology (DST) New Delhi, for financial support to him.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Green Chemistry
    DOI
    10.1039/c8gc00284c
    Additional Links
    http://pubs.rsc.org/en/Content/ArticleLanding/2018/GC/C8GC00284C#!divAbstract
    ae974a485f413a2113503eed53cd6c53
    10.1039/c8gc00284c
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC)

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