A series of CoMo-S/ZrO₂ catalysts were prepared by modifying Co and Mo content using incipient wetness impregnation method, investigated in the water gas shift (WGS) reaction in the presence of H₂S and characterized by TEM, XRD, Raman, TPR, and XPS. The supported CoMo-S catalyst corresponding to the CoMo-O monolayer coverage displayed the presence of highly dispersed CoMo-S species that were characterized by the highest extent of sulfidation. The presence of cobalt facilitated the formation of active CoMo-S species that were more H₂S-dependent as compared to Mo-S entities. The Co/Mo = 0.3 catalyst at monolayer CoMo-O coverage was the most active and thermally stable, as well as the least H₂S-dependent during 4 weeks of WGS reaction among all catalysts investigated.

通过使用初始湿润浸渍法改变Co和Mo的含量，制备了一系列CoMo-S / ZrO ₂催化剂，在H ₂ S存在下在水煤气变换（WGS）反应中进行了研究，并通过TEM，XRD，Raman， TPR和XPS。对应于CoMo-O单层覆盖率的负载型CoMo-S催化剂显示出高度分散的CoMo-S物种的存在，其特征是硫化程度最高。钴的存在促进了与Mo-S实体相比更依赖H ₂ S的活性CoMo-S物种的形成。单层CoMo-O覆盖下的Co / Mo = 0.3催化剂是最活跃，最热稳定的，同时H ₂最少在所研究的所有催化剂中，WGS反应4周期间S依赖性。