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Stacking of Molybdenum Disulfide Layers in Hydrotreating Catalysts

Datetime:2016/7/4 20:46:06hit:10500

 

Stacking of Molybdenum Disulfide Layers in Hydrotreating Catalysts. Over the past several years there has been an intensive effort addressing the nature of the active site(s) in supported hydro-processing catalysts. Generally, these catalysts are either nickel or cobalt-promoted molybdenum disulfide supported on an alumina carrier. The authors have recently prepared a number of alumina-based Ni/Mo and Co/Mo catalysts designed to aid us in understanding the roles played by both the molybdenum disulfide and the promoter metal. In addition, they were also interested in examining the effect of phosphorus. These catalysts have been examined by x-ray photoelectron spectroscopy (XPS) and high-resolution transmission electron microscopy (HRTEM). Their results are discussed here.