▎ 摘　　要

NOVELTY - Manufacturing metal-graphene core-shell composite, comprises preparing a metal catalyst powder by setting temperature of less than or equal to 0.8 degrees C (A) as a first temperature when the melting point of the metal catalyst powder is A degrees C; dissolving carbon in the metal catalyst powder by injecting hydrocarbon gas and hydrogen gas at a first temperature under vacuum condition; and cooling the metal catalyst powder in which the carbon is dissolved to form a graphene shell on the surface of the metal catalyst powder. USE - The metal-graphene core-shell composite is useful for fuel cells, sensors, transistors and heat dissipation materials. ADVANTAGE - The metal-graphene core-shell composite has structure in which highly crystalline graphene, which can effectively protect catalytic metal and exhibit excellent properties of graphene, has excellent electrical properties and chemical stability of high-quality graphene shell by forming graphene shell on surface of metal catalyst core, with metal catalyst heated at high temperature and for long period of time due to protective ability of graphene shell that does not pass through, metal core inside can be stably present and thus can play excellent catalytic role even when applied to harsh reaction process including acid or alkali. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for metal-graphene core-shell composite manufactured by above method.