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Iron catalysts supported on γ-Al_2O_3 and zeolite were prepared fromorganic solution of Fe_3 (CO)_(12). TPCR (Temperature-programmed Catalytic Re-action) and DRS (Diffuse Reflectance Spectroscopy) were used to monitor thereaction and characterize the catalysts. Fe/γ-Al_2O_3 catalyst reduced at 150℃or 250℃ not only has higher activity than that reduced at 450℃, but also pro-duces ethane and ethylene during the (CO + H_2) reaction. Fe/zeolite catalystreduced at 250℃ displays higher activity than that reduced at 450℃, it alsoproduces ethylene, ethane and propane. DRS results suggest that Fe-Fe bondsexist on the catalysts activated under mild conditions.
Iron catalysts supported on γ-Al_2O_3 and zeolite were prepared from organic solution of Fe_3 (CO) _ (12). TPCR (Temperature-programmed Catalytic Re-action) and DRS (Diffuse Reflectance Spectroscopy) were used to monitor thereaction and characterize the catalysts. Fe / γ-Al_2O_3 catalyst reduced at 150 ℃ or 250 ℃ not only has higher activity than that reduced at 450 ℃, but also pro-duces ethane and ethylene during the (CO + H_2) reaction. Fe / zeolite catalystreduced at 250 ℃ displays higher activity than that reduced at 450 ° C, it alsoproduces ethylene, ethane and propane. DRS results suggest that Fe-Fe bondsexist on the catalysts activated under mild conditions.