NICKEL-CONTAINING CARBON-GRAPHENE HYDROGENATION CATALYST AND METHOD FOR ITS PREPARATION Russian patent published in 2021 - IPC B01J23/755 B01J21/18 B82B1/00 B82B3/00 C01B32/15 B01J37/02 B01J37/16 

FIELD: chemistry.

SUBSTANCE: inventions relate to the field of catalysis. Described is a nickel-containing carbon-graphene hydrogenation catalyst for the production of magnesium-based hydrogen storage materials, containing nickel nanoparticles with a size of 2-5 nm in an amount of 6-17 wt. %, which are fixed at the ends of carbon nanofibers and are evenly distributed on the surface of the graphene material. A method for preparing the above catalyst is described, including the addition of an aqueous solution of nickel salt Ni(CH₃COO)₂ to an aqueous suspension of graphite oxide, freeze drying of an aqueous suspension of graphite oxide-Ni (CH₃COO)₂, reduction of graphite oxide and nickel (II), and the reduction of graphite oxide and nickel(II) is carried out with an Ar:H₂:C₂H₄ gas mixture containing ethylene, while simultaneously synthesizing carbon nanofibers in the flow of this Ar:H₂:C₂H₄ mixture at a temperature of 700°C.

EFFECT: effective hydrogenation catalyst.

2 cl, 4 ex