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

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