Preparation and support effects for HDS activity of Co-Mo sulfide catalysts by a CVD method

摘要

The S-Se exchange during the hydrode-selenium (HD-Se) reaction of selenophene was investigated over MoS_2/Al_2O_2 and intrazeolite Mo sulfide clusters. The local structure of Se incorporated into the Mo sulfide catalysts was studied by means of Se K-edge XAFS. It was found that the extent of S-Se exchange during the HD-Se reaction, rate constant and dynamic behaviors of Se incorporation strongly vary with the cluster size of Mo sulfide.