Does mono-atomic Ru catalyse the Fischer-Tropsch synthesis?

摘要

The Fischer-Tropsch synthesis was studied using a Ru-dendrimer (Rp3GlC) supported on silica as a catalyst. The stabilyt of the Ru-dendrimer catalyst was investigated using TGA in nitrogen, hydrogen, carbon monoxide and a hydrogen/carbon monoxide atmosphere. Under typical Fischer-Tropsch conditions the catalyst is metal-stable. The time-on-stream behaviour of this catalyst in the CO hydrogenation was compared with an impregnated Ru/SiO_2 catalyst and showed no FT-specific product patterns. This seems to indicate that a single metallic site is not sufficient for the Fischer-Tropsch synthesis. This is substanitated by the rate of formation of some specific hydrocarbons.