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One-Pot Hydrogenation of Furfural into Tetrahydrofurfuryl Alcohol under Ambient Conditions over PtNi Alloy Catalyst
Version 2 2019-12-02, 19:33
Version 1 2019-11-19, 08:29
journal contribution
posted on 2019-12-02, 19:33 authored by Jingcheng Wu, Xinghua Zhang, Qiang Chen, Lungang Chen, Qiying Liu, Chenguang Wang, Longlong MaFurfural (FAL), a promising renewable platform compound
from biomass,
can be totally hydrogenated to an industrially important platform
chemical, tetrahydrofurfuryl alcohol (THFA). In this work, a high
yield of THFA was obtained by one-pot hydrogenation of FAL over a
PtNi catalyst under mild reaction conditions. Small PtNi alloy particles
were well distributed on active carbon. The catalysts were characterized
by several physical–chemical technologies (transmission electron
microscopy, X-ray diffraction, energy-dispersive spectroscopy, and
inductively coupled plasma spectroscopy). Temperature-programmed reduction
with hydrogen and in situ X-ray photoelectron spectroscopy demonstrate
the presence of PtNi alloy. The electron-rich metal Pt could facilitate
the heterolytic dissociation of hydrogen and promote the hydrogenation
of FAL. Pt sites on the surface facilitate the adsorption at aldehyde
(CO) groups, and the furan ring strongly adsorbs on the Ni
surface. Low reaction temperature is advantageous to reduce side reactions.
Various metal concentrations were employed in this reaction; Pt(3)Ni(3)/C
catalyst exhibits the best performance, achieving 99% FAL conversion
and 93% THFA yield at 35 °C and under 2 MPa H2.
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Keywords
heterolytic dissociationTetrahydrofurfuryl Alcoholplatform chemicalVarious metal concentrationstetrahydrofurfuryl alcoholfuran ringX-ray diffractionSmall PtNi alloy particlesside reactionsPtNi Alloy Catalyst FurfuralOne-Pot Hydrogenation2 MPa H 2PtNi catalystenergy-dispersive spectroscopyLow reaction temperatureelectron-rich metal Pttransmission electron microscopyplatform compoundAmbient ConditionsTemperature-programmed reductionreaction conditionsone-pot hydrogenationPtNi alloyNi surfaceFALPt sitesTHFAX-ray photoelectron spectroscopyplasma spectroscopy
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