摘要:
A metal-carbon composite supported catalyst for hydrogen production using co-evaporation and a method of preparing the same, wherein the catalyst is configured such that a metal-carbon composite having a core-shell structure resulting from co-evaporation is supported on the surface of an oxide-based support coated with carbon, thereby maintaining superior durability without agglomeration even in a catalytic reaction at a high temperature. Because part or all of the surface of metal is covered with the carbon shell, even when the catalyst is applied under severe reaction conditions including high temperatures, long periods of time, acidic or alkaline states, etc., the metal particles do not agglomerate or are not detached, and do not corrode, thus exhibiting high performance and high durability. Therefore, inactivation of the catalyst or the generation of side reactions can be prevented, so that the catalyst can be efficiently utilized in hydrogen production.
摘要:
A metal-carbon composite supported catalyst for hydrogen production using co-evaporation and a method of preparing the same, wherein the catalyst is configured such that a metal-carbon composite having a core-shell structure resulting from co-evaporation is supported on the surface of an oxide-based support coated with carbon, thereby maintaining superior durability without agglomeration even in a catalytic reaction at a high temperature. Because part or all of the surface of metal is covered with the carbon shell, even when the catalyst is applied under severe reaction conditions including high temperatures, long periods of time, acidic or alkaline states, etc., the metal particles do not agglomerate or are not detached, and do not corrode, thus exhibiting high performance and high durability. Therefore, inactivation of the catalyst or the generation of side reactions can be prevented, so that the catalyst can be efficiently utilized in hydrogen production.
摘要:
The present invention relates to a metal carbide/carbon composite body having a porous structure, in which core-shell unit particles are three-dimensionally connected, a preparation method thereof, and the use of the composite body. More specifically, the present invention provides a metal carbide/carbon composite body, a preparation method thereof, and the use of the composite body, wherein the composite body is formed by high-temperature calcination of a metal oxalate hydrate body under a carbon monoxide-containing gas atmosphere, wherein the metal carbide/carbon composite body has a porous structure in which core-shell unit particles are three-dimensionally connected, wherein the core-shell unit particles comprise a metal carbide core formed by thermal decomposition of a metal oxalate hydrate; and a graphitic carbon shell, the product resulting from Boudouard reaction of carbon monoxide, formed on the metal carbide core.
摘要:
The present invention relates to a metal carbide/carbon composite body having a porous structure, in which core-shell unit particles are three-dimensionally connected, a preparation method thereof, and the use of the composite body. More specifically, the present invention provides a metal carbide/carbon composite body, a preparation method thereof, and the use of the composite body, wherein the composite body is formed by high-temperature calcination of a metal oxalate hydrate body under a carbon monoxide-containing gas atmosphere, wherein the metal carbide/carbon composite body has a porous structure in which core-shell unit particles are three-dimensionally connected, wherein the core-shell unit particles comprise a metal carbide core formed by thermal decomposition of a metal oxalate hydrate; and a graphitic carbon shell, the product resulting from Boudouard reaction of carbon monoxide, formed on the metal carbide core.
摘要:
The present invention relates to a metal oxalate hydrate body having a certain shape, a preparation method thereof, and a metal oxide/carbon composite body prepared by using the metal oxalate hydrate body. In the present invention, the metal oxalate body, whose shape is diversely controlled, and the metal oxide/carbon composite body therefrom are provided.
摘要:
The present invention relates to a metal oxalate hydrate body having a certain shape, a preparation method thereof, and a metal oxide/carbon composite body prepared by using the metal oxalate hydrate body. In the present invention, the metal oxalate body, whose shape is diversely controlled, and the metal oxide/carbon composite body therefrom are provided.