• 专利标题:   Preparing graphene by stripping gas driven liquid phase in micro-channel useful in biomedicine, optoelectronic materials, and energy field, comprises e.g. dispersing the graphite in organic solvent to obtain graphite dispersion.
  • 专利号:   CN112624094-A, CN112624094-B
  • 发明人:   ZHANG Z, MIAO X, JI J
  • 专利权人:   UNIV ZHEJIANG TECHNOLOGY
  • 国际专利分类:   C01B032/19
  • 专利详细信息:   CN112624094-A 09 Apr 2021 C01B-032/19 202145 Pages: 7 Chinese
  • 申请详细信息:   CN112624094-A CN11626371 31 Dec 2020
  • 优先权号:   CN11626371

▎ 摘  要

NOVELTY - Preparing graphene by stripping gas driven liquid phase in micro-channel comprises (i) dispersing graphite in organic solvent to obtain graphite dispersion; (ii) introducing graphite dispersion into liquid phase inlet channel of micro-channel reactor with flow rate of 0.1-4 l/hour, introducing air into gas phase inlet channel of micro-channel reactor with flow rate of 10-400 l/hour, flowing out the liquid from gas-liquid outlet channel of micro-channel reactor under driving of the gas, obtaining dispersion liquid after one time peeling, the micro-channel reactor is liquid phase inlet channel, gas phase inlet channel, gas-liquid outlet channel, the liquid phase inlet channel and the gas phase inlet channel are converged to gas-liquid outlet channel; (iii) taking obtained dispersion to micro-channel reactor, repeating step (ii), preforming stripping operation to obtain dispersion; and (iv) collecting dispersion after circulating peeling, centrifuging, taking supernatant, and drying. USE - The graphene is useful in biomedicine, optoelectronic materials, and energy field. ADVANTAGE - The method: ensures the adjustable reaction conditions; requires simple equipment, high efficiency, and high graphene quality, and is economical.