碳化钼催化材料的制备、表征及CO加氢反应性能的研究

Molybdenum carbide of both β-Mo2C and α-MoC1-x crystalline forms was prepared by temperature programmed reaction (TPRe) between MoO3 and CH4/4H2. The structure and morphology of molybdenum carbide were characterized by XRD, BET, TEM, SEM and XPS. Its catalytic activity in the hydrogenation of carbon monoxide were investigated under 573K, 8.0MPa, GHSV=2000h－1, n(H2)/n(CO)=1.0. The results indicated that light hydrocarbons of C1～4 are the main products in the hydrogenation of carbon monoxide over molybdenum carbides, with the formation small amounts of alcohols (< 4%). Molybdenum carbide could then be a potential catalyst for the F-T synthesis or the alcohol synthesis.