▎ 摘　　要

NOVELTY - Producing graphene layer from liquid metal matrix on solid metal or ceramic substrate comprising multilayered plate containing, as graphene forming matrix, an external layer composed of a metal or a metal alloy and, as a support substrate, between 1 and 5 layers made of transition metals and/or their alloys and/or metalloids and/or their solutions and compounds with melting points of 1151-3410 degrees C, comprises: (a) heating plate; (b) annealing and supplying acetylene, ethylene and hydrogen; and (c) cooling, partially controlled with cooling rate maintained at 0.1 and 2 degrees C/minute in 1200-1050 degrees C. USE - The method is useful for producing graphene from a liquid metal. DETAILED DESCRIPTION - Producing a graphene layer from a liquid metal matrix on a solid metal or ceramic substrate comprising a multilayered plate containing, as the graphene forming matrix, an external layer composed of a metal or a metal alloy with a melting point of 1051-1150 degrees C and, as a support substrate, between 1 and 5 layers made of transition metals and/or their alloys and/or metalloids and/or their solutions and compounds with melting points of 1151-3410 degrees C, using the mixture of acetylene, ethylene and hydrogen as carburizing medium, comprises: (a) heating the plate until the plate reaches 0.5-50 degrees C higher than the melting point of the forming matrix; (b) annealing, at a constant or variable temperature for 60-600 seconds, concurrently supplying the atmosphere with acetylene at a partial pressure of 0-4 hPa, ethylene at a partial pressure of 0-4 hPa and hydrogen at a partial pressure of 0-2 hPa for 10-300 seconds; and (c) cooling, partially controlled, with the cooling rate maintained at 0.1 and 2 degrees C/minute in 1200-1050 degrees C, where the heating, annealing and cooling steps are conducted in the atmosphere of pure argon at a constant partial pressure of 1-1100 hPa.