• 专利标题:   Perforating sheet of graphene-based material for filtration application, involves arranging sheet of material comprising multi-layer graphene having graphene layers which are independently stacked, and exposing material to particle beam.
  • 专利号:   US2017036916-A1, WO2017023377-A1, AU2016303049-A1, CA2994664-A1, SG11201800883-A1, KR2018037991-A, CN108025279-A, EP3331824-A1, JP2018530499-W, MX2018001559-A1, EP3331824-A4
  • 发明人:   BEDWORTH P V, SWETT J L
  • 专利权人:   LOCKHEED MARTIN CORP, LOCKHEED MARTIN CORP, LOCKHEED CORP
  • 国际专利分类:   C01B031/04, B01J019/08, B82B001/00, B82Y030/00, B82Y040/00, C01B032/194, C01B032/182, C01B032/186, B01D067/00, B01D071/02
  • 专利详细信息:   US2017036916-A1 09 Feb 2017 C01B-031/04 201715 Pages: 17 English
  • 申请详细信息:   US2017036916-A1 US099099 14 Apr 2016
  • 优先权号:   US202122P, US099099, WOUS027610, CA2994664

▎ 摘  要

NOVELTY - Perforating a sheet of graphene-based material involves (a) arranging the sheet of graphene-based material comprising multi-layer graphene having 2-10 graphene layers on a porous substrate, and (b) exposing the sheet of graphene-based material to particle beam comprising nanoparticles having energy of 2-500 keV/nanoparticles and opening a variety of pores extending through the multiple graphene sheets. At least two of the graphene layers are independently stacked. USE - Perforating sheet of graphene-based material (claimed) for filtration applications and separation application. Uses include but are not limited to molecular filter, barrier material, band gap material and electroconductive filler material. ADVANTAGE - The method efficiently provides perforated sheet of graphene-based material with improved pore density and pore size, size distribution and tunable electrical properties. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for modifying the sheet of perforated graphene-based material, which involves arranging the sheet of perforated graphene-based material comprising a set (s1) of pores extending through the sheet of graphene-based material and having a pore size (p1) and exposing the sheet of perforated graphene-based material to a particle beam and modifying the sheet of perforated graphene-based material. The modification process involves creating a set (s2) of pores having a pore size (p1) extending through the multiple graphene sheets and/or modifying the pore size (p1).