• 专利标题:   Preparing graphene useful as supercapacitor electrode material, comprises oxidizing graphite, ball-milling graphite oxide and magnesium powder in ball-milling jar, washing, drying, filtering, washing with hydrochloric acid and drying.
  • 专利号:   CN104211049-A, CN104211049-B
  • 发明人:   MA Y, SUN X, ZHANG D, ZHANG X
  • 专利权人:   INST ELECTRICAL ENG CHINESE ACAD SCI
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN104211049-A 17 Dec 2014 C01B-031/04 201510 Chinese
  • 申请详细信息:   CN104211049-A CN10317776 04 Jul 2014
  • 优先权号:   CN10317776

▎ 摘  要

NOVELTY - Preparing graphene comprises (i) oxidizing graphite via Hummer method, (ii) feeding graphite oxide and magnesium powder of ratio 1000:1-1:1000 into a ball-milling jar and ball-milling for 0-100 hours, where the ratio of grinding media to material is 1:100-1000:1 and the ball-milling rotating speed is 0-1000 revolutions/minute, (iii) washing the mixture with water and drying the reaction product at 40-200 degrees C, (iv) filtering, washing with hydrochloric acid and drying. USE - The graphene is useful as supercapacitor electrode material. ADVANTAGE - The method is simple. The graphene has electrochemical property, high specific capacitance, high magnification rate and long circulation stability.