• 专利标题:   Preparing graphene by taking lignin as raw material comprises loading catalyst and lignin into ceramic sample boat, placing in tubular furnace, introducing inert protective gas, heating, cooling, washing, vacuum filtering and drying.
  • 专利号:   CN103466613-A
  • 发明人:   CAI Z, WU Y, ZHANG X, ZHANG J
  • 专利权人:   UNIV CENT SOUTH FORESTRY TECHNOLOGY
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN103466613-A 25 Dec 2013 C01B-031/04 201416 Pages: 7 Chinese
  • 申请详细信息:   CN103466613-A CN10472057 11 Oct 2013
  • 优先权号:   CN10472057

▎ 摘  要

NOVELTY - Preparing graphene by taking lignin as raw material comprises (i) loading catalyst and lignin of ratio 1:8-1:3 into ceramic sample boat, placing the sample boat into hinged tubular furnace and introducing inert protective gas at the speed of 500-2000 ml/minute for 5-30 minutes, where the lignin is alkali lignin, lignin sulfonate, ground wood lignin or solvent-based lignin; (ii) heating from room temperature to 500-1500 degrees C at the rate of 5-30 degrees C/minute for 30-120 minutes; and (iii) cooling to room temperature, washing sample with deionized water, vacuum filtering and drying at low temperature. USE - The method is useful for preparing graphene by taking lignin as raw material (claimed). ADVANTAGE - The method is simple, produces product with high yield and good quality.