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author:

Lin, H. (Lin, H..) [1] | Sun, P. (Sun, P..) [2] | Xu, Y. (Xu, Y..) [3] | Zong, X. (Zong, X..) [4] | Yang, H. (Yang, H..) [5] | Liu, X. (Liu, X..) [6] | Zhao, H. (Zhao, H..) [7] | Tan, L. (Tan, L..) [8] | Wu, L. (Wu, L..) [9] | Tang, Y. (Tang, Y..) [10]

Indexed by:

Scopus

Abstract:

Hydrodeoxygenation (HDO) is an important catalytic route for upgrading of biomass resources to biofuels. The cleavage of aryl C-O bond is the key step to remove oxygen atoms from biomass molecules, however, which usually occurs after the cleavage of alkyl C-O bond in thermodynamics due to the significant higher bond energy of aryl C-O bond. Herein, we report a series of Pt/α-MoC catalysts with different Pt concentration for the HDO of anisole, a biomass molecule. The Pt/α-MoC catalyst exhibits enhanced HDO catalytic performance in terms of the higher turnover rate (150.2 h−1) and lower apparent activation energy (42.5–48.2 kJ·mol−1) compared with primitive α-MoC catalyst. By temperature programmed surface reaction and X-ray absorption spectrum, the status of Pt in the Pt/α-MoC catalyst is revealed to be atomically dispersed on α-MoC when the Pt/Mo ratio is lower than 0.2 %. The singly dispersed PtMo bimetallic sites serve as the catalyst for HDO, and attribute to the dissociation of aryl C-O bond prior to that of alkyl C-O bond. This work identifies the role of Pt in the carbide catalyst for HDO, and further provides new insight for catalyst design towards to selective C-O bond cleavage. © 2022 Elsevier B.V.

Keyword:

Carbide C-O bond Hydrodeoxygenation Platinum Single atom catalyst

Community:

  • [ 1 ] [Lin, H.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Sun, P.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Xu, Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 4 ] [Zong, X.]Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
  • [ 5 ] [Yang, H.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Liu, X.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Zhao, H.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Tan, L.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 9 ] [Wu, L.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 10 ] [Tang, Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, College of Chemistry, Fuzhou University, Fuzhou, 350108, China

Reprint 's Address:

  • [Tang, Y.]Institute of Molecule Catalysis and In-Situ/Operando Studies, China

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Related Keywords:

Source :

Molecular Catalysis

ISSN: 2468-8231

Year: 2022

Volume: 531

4 . 6

JCR@2022

3 . 9 0 0

JCR@2023

ESI HC Threshold:74

JCR Journal Grade:2

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 12

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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