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  • 专利标题:   Membrane used to separate gas from fluid mixture including first gas e.g. neon and second gas, includes graphene layer perforated by nanoscale pores, and gas sorbent to contact surface of layer and direct gas adsorbed at sorbent into pores.
  • 专利号:   US2013192461-A1, WO2013115762-A1, CN104487382-A, US9056282-B2, CN104487382-B
  • 发明人:   DUERKSEN G L, MILLER S A
  • 专利权人:   EMPIRE TECHNOLOGY DEV LLC, ISLAND GIANT DEV LLP
  • 国际专利分类:   B01D053/22, B01D067/00, B01D069/12, B01D071/02, B05D001/06, B05D001/18, B05D003/12, B05D005/00, B82Y030/00, B82Y040/00, B82Y099/00, C23C016/44, C01B031/04, B01D069/14, B01D069/06
  • 专利详细信息:   US2013192461-A1 01 Aug 2013 B01D-071/02 201356 Pages: 49 English
  • 申请详细信息:   US2013192461-A1 US13640272 09 Oct 2012
  • 优先权号:   CN80068318, WOUS022858, US13640272

▎ 摘　　要

NOVELTY - The membrane (222) comprises a graphene layer perforated by nanoscale pores (206), and a gas sorbent configured to contact a surface of the graphene layer between the nanoscale pores and to direct a gas adsorbed at the gas sorbent into the nanoscale pores. Each nanoscale pores is characterized by an average diameter of 0.1-4 nm. The pores have same size such that the graphene layer has uniform pore sizes throughout. Each nanoscale pore is characterized by carbon vacancy defects in the graphene monolayer (204) such that the graphene layer has uniform pore sizes throughout. USE - The membrane is useful for separating a gas from a fluid mixture including a first gas and a second gas, where the first gas includes helium, neon, argon, xenon, krypton, radon, hydrogen, nitrogen, oxygen, carbon monoxide, carbon dioxide, sulfur dioxide, hydrogen sulfide, a nitrogen oxide, a 1-4C alkane, a silane, water or a haloacid (all claimed). ADVANTAGE - The membrane has greater selectivity and gas permeation rates, and increased transport rates for gas molecules. DETAILED DESCRIPTION - The membrane (222) comprises a graphene layer perforated by nanoscale pores (206), and a gas sorbent configured to contact a surface of the graphene layer between the nanoscale pores and to direct a gas adsorbed at the gas sorbent into the nanoscale pores. Each nanoscale pores is characterized by an average diameter of 0.1-4 nm. The pores have same size such that the graphene layer has uniform pore sizes throughout. Each nanoscale pore is characterized by carbon vacancy defects in the graphene monolayer (204) such that the graphene layer has uniform pore sizes throughout. The gas sorbent comprises nanoparticles having a diameter of 20-100 nm, and an atomic monolayer. The gas sorbent at a surface of the graphene layer has a thickness of 1 atom to 1 micron. A portion of the nanoscale pores is free from obstruction by the gas sorbent layer, and is partly occluded by the gas sorbent. INDEPENDENT CLAIMS are included for: (1) a method of forming a membrane; and (2) a method of separating a gas from a fluid mixture. DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a membrane. Graphene monolayer (204) Pores (206) Membrane's top view (220) Membrane (222) Gas sorbent particles. (228)