• 专利标题:   Method for preparing porous graphene by using mirror-rich bituminous coal, involves irradiating whole sheet sample by laser in defocusing and vacuum environment to induce to obtain coal-based porous material graphene.
  • 专利号:   CN116002671-A
  • 发明人:   LI H, ZHANG L, WANG X, ZHAO Y, WANG S
  • 专利权人:   UNIV CHINA MINING TECHNOLOGY BEIJING
  • 国际专利分类:   C01B032/184, H01G011/26, H01G011/32, H01G011/86
  • 专利详细信息:   CN116002671-A 25 Apr 2023 C01B-032/184 202346 Chinese
  • 申请详细信息:   CN116002671-A CN10013063 05 Jan 2023
  • 优先权号:   CN10013063

▎ 摘  要

NOVELTY - Preparing porous graphene using rich vitrinite bituminous coal, comprises using bituminous coal as the raw material, the coal undergoes crushing, grinding, acid washing, water washing, and drying processes to obtain a low-ash fine powder sample, the powder sample is filled into a hollow circular pore graphite crucible. The sample is then processed using a pressing tool to prepare a thin sample slice. The entire thin sample slice is irradiated with a laser under defocused and vacuum conditions to induce the formation of coal-based porous graphene material. USE - Method for preparing porous graphene by using mirror-rich bituminous coal, which is useful in photoelectric devices, electrochemical device and sensor. ADVANTAGE - The method has simple operation, economic and environment-friendly, relatively more yield. The obtained porous graphene has large specific surface area, good graphitization effect, suitable for fast production of coal-based porous graphene related material, using a new way for the utilization of coal. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a porous graphene material prepared by the method for preparing porous graphene by using mirror-rich body bituminous coal.