• 专利标题:   Forming porous graphene-based structure used to make supercapacitor includes directing laser beam onto layer of graphene oxide to reduce a portion of graphene oxide, and laser beam consists of ultrafast femtosecond pulses of laser radiation.
  • 专利号:   WO2019169456-A1, US2020399131-A1
  • 发明人:   THEKKEKARA L V, GU M, CHEN X
  • 专利权人:   ROYAL MELBOURNE INST TECHNOLOGY LTD, ROYAL MELBOURNE INST TECHNOLOGY LTD
  • 国际专利分类:   C01B032/192, C01B032/198, H01G011/36, H01L021/26, H01L021/28, B32B009/00
  • 专利详细信息:   WO2019169456-A1 12 Sep 2019 C01B-032/192 201972 Pages: 38 English
  • 申请详细信息:   WO2019169456-A1 WOAU050214 08 Mar 2019
  • 优先权号:   AU900781

▎ 摘  要

NOVELTY - Forming a porous graphene-based structure, includes directing a laser beam onto at least one layer of graphene oxide to reduce at least a portion of the graphene oxide, where the laser beam consists of ultrafast femtosecond (fs) pulses of laser radiation to cause reduction of at least a portion of the graphene oxide by two-photon absorption and form at least one respective porous layers of reduced graphene oxide (rGO) having substantially uniform porosity. USE - The method is useful for forming a porous graphene-based structure which is used for forming supercapacitor (claimed) and sensing and energy storage. ADVANTAGE - The method provides the supercapacitor that has an energy density of at least 0.1 Wh cm-3 preferably at least 103 W cm-3 and has a volumetric capacitance of 102 mF cm3. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) porous structure formed by the method; and (2) porous graphene-based structure, including porous layers of reduced graphene oxide (rGO) having substantially uniform porosity.