Catalytic Hydrodeoxygenation of Guaiacol to Cyclohexanol over Bimetallic NiMo-MOF-Derived Catalysts

Minghao Zhou*, Fei Ge, Jing Li, Haihong Xia, Junli Liu, Jianchun Jiang, Changzhou Chen, Jun Zhao, Xiaohui Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Lignin is an attractive renewable source of aromatics with a low effective hydrogen to carbon ratio (H/Ceff ). The catalytic hydrodeoxygenation (HDO) of lignin-derived model compounds is a key strategy for lignin upgrading. In this work, the HDO of guaiacol, a typical lignin-derived compound, was carried out over metal–organic framework (MOF)-derived Ni-based catalysts. A monometallic Ni-MOF catalyst and different ratios of bimetallic NiMo-MOF catalysts were synthesized by a hydrothermal process, followed by a carbonization process. Among these catalysts, Ni3Mo1@C exhibited an excellent catalytic performance, affording a guaiacol conversion of 98.8% and a cyclohexanol selectivity of 66.8% at 240 C and 2 MPa H2 for 4 h. The addition of Mo decreased the particle size of the spherical structure and improved the dispersion of metal particles. The synergistic effect between Ni and Mo was confirmed by various means, including ICP, XRD, SEM, TEM, and NH3-TPD analyses. In addition, the effect of the reaction temperature, time, and H2 pressure during the HDO process is discussed in detail.

Original languageEnglish
Article number371
Number of pages15
JournalCatalysts
Volume12
Issue number4
Early online date24 Mar 2022
DOIs
Publication statusPublished - Apr 2022

Scopus Subject Areas

  • Catalysis
  • Physical and Theoretical Chemistry

User-Defined Keywords

  • guaiacol
  • hydrodeoxygenation
  • MOF
  • Ni-based bimetallic catalysts

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