• 专利标题:   Manufacturing graphene quantum dots involves adding coffee bean powder, carbonizing coffee bean powder by heating in hydrogen atmosphere, placing carbonized coffee bean powder.
  • 专利号:   KR2020050810-A
  • 发明人:   HONG B H, KIM D
  • 专利权人:   GRAPHENE SQUARE INC, UNIV SEOUL NAT R DB FOUND
  • 国际专利分类:   B82Y020/00, B82Y030/00, B82Y040/00, C01B032/184, C09K011/02, C09K011/65
  • 专利详细信息:   KR2020050810-A 12 May 2020 C09K-011/65 202043 Pages: 18
  • 申请详细信息:   KR2020050810-A KR133891 02 Nov 2018
  • 优先权号:   KR133891

▎ 摘  要

NOVELTY - Manufacturing graphene quantum dots involves adding coffee bean powder at a temperature of 900-1100 degrees C and 10(-)4-10(-)2, carbonizing the coffee bean powder by heating in a hydrogen atmosphere of torr, placing the carbonized coffee bean powder in an acidic solution and heating to obtain a solution containing graphene quantum dots, neutralizing the solution containing the graphene quantum dots, and drying the solution containing the neutralized graphene quantum dots to obtain graphene quantum dots. USE - Method for manufacturing graphene quantum dots. ADVANTAGE - The method enables to manufacture graphene quantum dots which has biocompatibility and stability, which can compensate for disadvantages of existing quantum dots. It is attracting attention as a substitute. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a graphene quantum dot, which is prepared by above method and doped with nitrogen atoms.