Nb₂O₅-supported bimetallic catalysts were prepared by the impregnation method applied for the in situ hydrogenation of guaiacol. Guaiacol can be effectively transformed into cyclohexanol over different bimetallic catalysts using alcohol as the hydrogen donor. Meanwhile, the effects of different hydrogen donors such as isopropanol, sec-pentanol, and ethylene glycol on in situ hydrogenation of guaiacol were investigated in detail, and the results showed that isopropanol is the best hydrogen supply solvent. Then, the dependence of Ni–Mn/Nb₂O₅ properties on metal loading, reaction time, reaction temperature, and reaction pressure was studied for the in situ hydrogenation of guaiacol by using isopropanol as the hydrogen donor. Guaiacol can be completely converted, and the yield of cyclohexanol reached 71.8% over Ni–Mn/Nb₂O₅ with isopropanol as the hydrogen donor at 200°C for 5 h. The structures and characteristics of better catalytic properties of the Ni–Mn/Nb₂O₅ catalyst were determined by BET, NH₃-TPD, XRD, XPS, SEM, and TEM, and the results indicated the particle size of the metal was small (approximately 10 nm) and the metal particles are finely dispersed in the whole support. Therefore, a large number of medium acid sites were generated on the 10Ni-10Mn/Nb₂O₅ with a large specific surface area, which could increase the interface between the metal and the support and may be beneficial to the hydrodeoxygenation of guaiacol.

采用浸渍法制备了Nb ₂ O ₅负载的双金属催化剂。就地愈创木酚氢化。愈创木酚可以在不同的双金属催化剂上以醇为氢供体有效地转化为环己醇。同时，异丙醇、仲戊醇、乙二醇等不同供氢体对就地对愈创木酚加氢反应进行了详细研究，结果表明异丙醇是最佳的供氢溶剂。然后，研究了 Ni-Mn/Nb ₂ O ₅性质对金属负载量、反应时间、反应温度和反应压力的依赖性。就地以异丙醇为供氢体加氢愈创木酚。愈创木酚可以完全转化，环己醇的产率在Ni-Mn/Nb ₂ O ₅上达到71.8%，以异丙醇为氢供体，在200°C 5 h。通过 BET、NH ₃ -TPD、XRD、XPS、SEM 和 TEM确定了 Ni-Mn/Nb ₂ O ₅催化剂具有更好催化性能的结构和特征，结果表明金属的粒径较小(大约 10 nm) 并且金属颗粒精细地分散在整个载体中。因此，在 10Ni-10Mn/Nb ₂ O ₅上产生了大量的中酸位点。 具有较大的比表面积，可以增加金属与载体之间的界面，可能有利于愈创木酚的加氢脱氧。