【摘 要】
：
Hydrodeoxygenation (HDO) is an effective alternative to produce value-added chemicals and liquid fuels by removing oxygen from lignin-derived compounds.Sulfide catalysts have been proved to have good activity for the HDO and particularly high selectivity
【机 构】
：
Laboratory of Advanced Materials and Catalytic Engineering, Dalian University of Technology, Panjin
论文部分内容阅读
Hydrodeoxygenation (HDO) is an effective alternative to produce value-added chemicals and liquid fuels by removing oxygen from lignin-derived compounds.Sulfide catalysts have been proved to have good activity for the HDO and particularly high selectivity to phenolic products.Herein,we presented a novel way to prepare the layered structure sulfide catalysts (MgFeMo-S) derived from MgFe hydrotalcites via the intercalation of Mo in consideration of the memory effect of the calcined hydrotalcite.By varying the Mg/Fe mole ratio,a series of MgFeMo-S catalysts were successfully prepared and characterized by nitrogen adsorption/desorption isotherms,X-ray diffraction (XRD),transmission electron microscopy (TEM),and inductively coupled plasma optical emission spectrometer (ICP-OES).The characterization results indicated that the MgFeMo-S catalyst has retained the unique layered structure,which can facilitate uniform dispersion of the MoS2 species on both the surface and interlayer of the catalysts.For the HDO of eugenol,the Mg1 Fe2Mo-S catalysts exhibited the best HDO activity among all the catalysts due to its higher active metal contents and larger pore size.The HDO conversion was 99.6％ and the yield of phenolics was 63.7％,under 5 MPa initial H2 pressure (measured at RT) at 300 ℃ for 3 h.More importantly,MoS2 species deposited on the interlayer galleries in the MgFeMo-S catalysts resulted in dramatically superior HDO activity to MoS2/Mg1Fe2-S catalyst.Based on the mechanism investigation for eugenol,the HDO reaction route of eugenol under sulfide catalytic system has been proposed for the first time.Further applicability of the catalyst on HDO of more lignin-derived compounds was operated,which showed good HDO activity and selectivity to produce aromatic products.
其他文献
The demand of microelectronic devices postulated high energetic flexible energy storage devices.Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices.This investigation provides practical
Preparation of high-quality films plays an important role to achieve high-performance nonfullerene (NF) organic solar cells.NF active layer films are typically fabricated by spin coating.Novel fabrication methods to process the NF active layer are desirab
A homogeneous better-dispersed ultrathin nanosheets (ca.5 nm) of cobalt-nickel layered double hydroxides (LDH) supported on nickel foam scaffold was synthesized using controllable electrodeposition approach for high efficiency electrode materials of new s
For some specific catalytic reaction,how to construct active sites on two dimensional materials is of great scientific significance.Dye-sensitized solar cells (DSCs) can be viewed as one representative photovoltaics because in which liquid electrolyte wit
Aqueous Zn//MnO2 batteries are emerging as promising large-scale energy storage devices owing m their cost-effectiveness,high safety,high output voltage,and energy density.However,the MnO2 cathode suffers from intrinsically poor rate performance and rapid
Methanol to gasoline reaction was investigated on two prepared ZSM-5 catalysts.The first one was a conventional catalyst denoted as ZSM-5(C) and the other was a hierarchical catalyst-ZSM-5(S) which was prepared by incorporation of table sugar in catalyst
Poly(amide-6-b-ethylene oxide) (Pebax1657)/1-butyl-3-methylimidazo-lium bis[trifluoromethyl)sulfonyl]-imide ([Bmim][Tf2N]) blend membranes with different [Bmim][Tf2N] contents were prepared via solution casting and solvent evaporation method,The permeatio