TY - JOUR
T1 - Catalytic Hydrodeoxygenation of Guaiacol to Cyclohexanol over Bimetallic NiMo-MOF-Derived Catalysts
AU - Zhou, Minghao
AU - Ge, Fei
AU - Li, Jing
AU - Xia, Haihong
AU - Liu, Junli
AU - Jiang, Jianchun
AU - Chen, Changzhou
AU - Zhao, Jun
AU - Yang, Xiaohui
N1 - Funding Information:
Funding: This research was funded by the National Natural Science Foundation of China grant number [32071718, 31700645] and the Young scientific and technological talents promotion project of the Jiangsu Association for science and technology grant number [TJ-2021-067].
Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/4
Y1 - 2022/4
N2 - 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.
AB - 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.
KW - guaiacol
KW - hydrodeoxygenation
KW - MOF
KW - Ni-based bimetallic catalysts
UR - http://www.scopus.com/inward/record.url?scp=85127007210&partnerID=8YFLogxK
U2 - 10.3390/catal12040371
DO - 10.3390/catal12040371
M3 - Journal article
AN - SCOPUS:85127007210
SN - 2073-4344
VL - 12
JO - Catalysts
JF - Catalysts
IS - 4
M1 - 371
ER -
