• 专利标题:   Preparation of reduced graphene oxide/phenolic resin-based activated carbon composite involves reacting phenol, formaldehyde and catalyst, adding graphene oxide solution, carbonizing, adding e.g. potassium hydroxide and activating.
  • 专利号:   CN104627994-A, CN104627994-B
  • 发明人:   CHEN C, KONG Q, LI X, LIU Z, SU F, CAI R, XIE L
  • 专利权人:   INST COAL CHEM CHINESE ACAD SCI, INST COAL CHEM CHINESE ACAD SCI
  • 国际专利分类:   C01B031/04, C01B031/12
  • 专利详细信息:   CN104627994-A 20 May 2015 C01B-031/04 201561 Pages: 7 Chinese
  • 申请详细信息:   CN104627994-A CN10062450 06 Feb 2015
  • 优先权号:   CN10062450

▎ 摘  要

NOVELTY - Preparation of reduced graphene oxide/phenolic resin-based activated carbon composite involves mixing phenol, formaldehyde and catalyst, adding graphene oxide solution, reacting, adding 3-10 %mass phenol and curing agent, reacting, drying the resultant reaction product, grinding, obtaining graphene oxide/phenolic resin composite, carbonizing, adding potassium hydroxide, mixing, adding aqueous solution of ethanol, mixing, drying, activating in an activation furnace in protective atmosphere at 600-800 degrees C for 20-70 minutes, naturally cooling to room temperature, washing and drying. USE - Preparation of reduced graphene oxide/phenolic resin-based activated carbon composite (claimed). ADVANTAGE - The method provides reduced graphene oxide/phenolic resin-based activated carbon composite having excellent dispersibility of graphene oxide and electrochemical performance. DETAILED DESCRIPTION - Preparation of reduced graphene oxide/phenolic resin-based activated carbon composite involves uniformly mixing phenol, formaldehyde and catalyst in molar ratio of 1:1-3:0.01-0.05, adding graphene oxide solution, reacting at 75-95 degrees C for 0.5-4 hours, adding 3-10 %mass phenol and curing agent, stirring uniformly, reacting, drying the resultant reaction product, grinding, obtaining graphene oxide/phenolic resin composite, carbonizing the resultant material at 500-1000 degrees C for 1-3 hours under protective gas atmosphere, adding potassium hydroxide, mixing uniformly, adding 50 wt.% aqueous solution of ethanol, mixing, drying, activating in an activation furnace in protective gas atmosphere at 600-800 degrees C for 20-70 minutes, naturally cooling the resultant material to room temperature, washing and drying. The ratio of carbonized product and potassium hydroxide is 1:1-1:6. The graphene oxide solution is obtained by ultrasonically processing graphite oxide in deionized water for 5-90 minutes under ultrasonic power of 500-1000 W and obtaining 0.1-10 mg/mL graphene oxide solution.