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Kwak, Ja Hun
Molecular Catalysis lab
Research Interests
  • Heterogeneous catalysis, molecular catalysis, ASlumima, zeolites

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Supported Pd nanoparticle catalysts with high activities and selectivities in liquid-phase furfural hydrogenation

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Title
Supported Pd nanoparticle catalysts with high activities and selectivities in liquid-phase furfural hydrogenation
Author
Nguyen-Huy, ChinhKim, Ji SunYoon, SinmyungYang, EuiseobKwak, Ja HunLee, Man SigAn, Kwangjin
Keywords
Pd nanoparticle; Supported catalyst; Furfural hydrogenation; Chemical reduction
Issue Date
201808
Publisher
ELSEVIER SCI LTD
Citation
FUEL, v.226, no., pp.607 - 617
Abstract
Highly dispersed and ultrafine Pd nanoparticles (NPs) deposited on carbon, silica, and alumina supports were prepared by chemical reduction (CR) using sodium borohydride, in the presence of trisodium citrate as a stabilizer. For comparison, supported Pd catalysts were also prepared through impregnation followed by thermal reduction (TR) and capillary inclusion of the colloidal Pd NPs (CI). The activities and selectivities of the prepared catalysts were evaluated in the liquid-phase furfural (FAL) hydrogenation reaction under 20 bar H2 at 180 °C. Under these conditions, FAL was converted via two distinct pathways to produce either furan via decarbonylation or furfuryl alcohol (FA) via aldehyde hydrogenation. Subsequently, furan and FA were converted to tetrahydrofuran and tetrahydrofurfuryl alcohol (THFA), respectively, via ring hydrogenation. 2-Methylfuran was also produced from the hydration of FAL. To verify the efficiency of the preparation methods, the size of the Pd NPs, the degree of metal dispersion, and the type of supports were correlated with the catalytic conversions and selectivities of FAL hydrogenation. It was confirmed that the 5 wt% Pd/C catalysts possessed highly dispersed small Pd NPs with large metallic Pd surface areas, which resulted in high conversions and selectivities towards THFA in the FAL hydrogenation reaction compared to conventional supported catalysts.
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DOI
http://dx.doi.org/10.1016/j.fuel.2018.04.029
ISSN
0016-2361
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