103results about How to "Size is easy to control" patented technology

The invention discloses a monodisperse transition metal nanocatalyst for Fischer-Tropsch synthesis as well as a preparation method and application thereof. The catalyst comprises transition metals, wherein the transition metals are stably dispersed in an organic solvent in a monodisperse metal nanoparticle state; the particle size of the transition metal is 1-100nm; and the specific surface area of the catalyst is 5-300m<2> / g. According to the method disclosed by the invention, the particle size of the active ingredients can be regulated and controlled, so that the size of the metal nanoparticles is controllable, and the metal nanoparticles do not need to be embedded into a carrier surface; and therefore, the specific surface area of the active ingredients is enlarged, and the catalytic performance of the catalyst is improved. According to the catalyst disclosed by the invention, the dispersity of the metal nanoparticles is high, and when the catalyst is used for a slurry bed reaction system, the catalyst can be directly applied to a Fischer-Tropsch synthesis reaction without complicated filtering separation, cleaning, high-temperature roasting and activated reduction, and the catalyst has extremely excellent catalytic activity.