A serie of supported bimetallic MoRe carbides were prepared with different Mo/Re molar ratio by using a mixture H₂+ C₂H₄ at 700 °C and compared to the respective monometallic carbides in the guaiacol conversion at 350 °C, 5.0 MPa. Catalysts were characterized by N₂-physisorption, CO-chemisorption, temperature programmed reduction/desorption of NH₃ (TPR and TPD-NH₃ respectively) and XPS. The results have shown an enrichment of Re at the surface occur suggesting that Re carbide recovered Mo carbide particles and, thus improving Re dispersion. This was traduced by an enhancement of the initial rate of conversion of the bimetallic catalyst. A synergistic effect between Mo and Re carbide was reported from XPS results and led to the activation of the demethylation of guaiacol to catechol.

通过在700°C下使用H ₂ + C ₂ H ₄的混合物，制备了一系列具有不同Mo / Re摩尔比的负载双金属MoRe碳化物，并将其与在350°C，5.0 MPa的愈创木酚转化率下的各个单金属碳化物进行了比较。催化剂的特征在于N _2-物理吸附，CO化学吸附，程序升温还原/脱附NH ₃（TPR和TPD-NH ₃分别）和XPS。结果表明，在表面发生了Re富集，表明Re碳化物回收了Mo碳化物颗粒，从而改善了Re的分散性。这是通过提高双金属催化剂的初始转化率来实现的。XPS结果报告了Mo和Re碳化物之间的协同作用，并导致了愈创木酚去甲基化为邻苯二酚的活化。