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    • 4. 发明申请
    • METHOD FOR TREATING GRAPHENE SHEETS FOR LARGE-SCALE TRANSFER USING FREE-FLOAT METHOD
    • 使用自由浮法处理大规模转移石SH片材的方法
    • WO2017180137A1
    • 2017-10-19
    • PCT/US2016/027623
    • 2016-04-14
    • LOCKHEED MARTIN CORPORATION
    • HEISE, Scott, E.BEDWORTH, Peter V.SINTON, Steven W.SWETT, Jacob L.
    • C01B31/04C23C16/26B01J19/08
    • A method for transferring a graphene sheet from a copper substrate to a functional substrate includes forming the graphene sheet on the copper substrate using chemical vapor deposition, and irradiating the graphene sheet disposed on the copper substrate with a plurality of xenon ions using broad beam irradiation to form a prepared graphene sheet. The prepared graphene sheet is resistant to forming unintentional defects induced during transfer of the prepared graphene sheet to the functional substrate. The method further includes removing the copper substrate from the prepared graphene sheet using an etchant bath, floating the prepared graphene sheet in a floating bath, submerging the functional substrate in the floating bath, and decreasing a fluid level of the floating bath to lower the prepared graphene sheet onto the functional substrate.
    • 用于将石墨烯片从铜基板转移到功能基板的方法包括使用化学气相沉积在铜基板上形成石墨烯片并且将设置在铜基板上的石墨烯片用多个 的氙离子使用宽光束照射以形成制备的石墨烯片。 所制备的石墨烯片能够抵抗在制备的石墨烯片转移至功能性基板期间形成的无意的缺陷。 该方法进一步包括使用蚀刻剂浴从所制备的石墨烯片上去除铜衬底,将制备的石墨烯片漂浮在漂浮浴中,将功能性衬底浸没在漂浮浴中,并且降低漂浮浴的液位以降低制备的 石墨烯片到功能基片上。
    • 8. 发明申请
    • METHOD FOR MAKING TWO-DIMENSIONAL MATERIALS AND COMPOSITE MEMBRANES THEREOF HAVING SIZE-SELECTIVE PERFORATIONS
    • 制造二维材料的方法及其具有尺寸选择性穿孔的复合膜
    • WO2017180140A1
    • 2017-10-19
    • PCT/US2016/027631
    • 2016-04-14
    • LOCKHEED MARTIN CORPORATION
    • SINTON, Steven W.BEDWORTH, Peter V.SIMON, Sarah M.SWETT, Jacob L.HEISE, Scott
    • B01D71/00B01D67/00B01D69/00
    • Two-dimensional materials having apertures in their basal planes are described, where at least a portion of the apertures are occluded with a selectively introduced occluding moiety. Occluding moieties that pass into apertures function to occlude apertures. Composite membranes are described having a porous substrate with a two-dimensional material disposed on the membrane and covering only a portion of the pores, wherein at least a portion of uncovered substrate pores are occluded. Pore occlusion can be achieved by introduction of an occluding particle optionally followed by chemical reaction, deformation or swelling of the particle to facilitate occlusion of pores. Two-dimensional materials covering substrate pores can be size-selected and optionally functionalized providing for selective permeability through composite membranes. Methods for occluding defects and apertures in two-dimensional materials and for selectively occluding pores in composite membranes are provided. Selectively occluded materials and membranes are useful in filtration and other applications.
    • 描述了在其基面上具有孔的二维材料,其中至少一部分孔被选择性引入的封闭部分封闭。 封闭通过孔的部分起到封闭孔的作用。 描述了具有多孔基底的复合膜,其中二维材料设置在膜上并且仅覆盖一部分孔,其中至少一部分未被覆盖的基底孔被封闭。 孔堵塞可以通过引入堵塞颗粒来实现,任选地随后进行化学反应,颗粒的变形或溶胀以促进孔的堵塞。 覆盖基底孔隙的二维材料可以通过尺寸选择并且可选地功能化以提供通过复合膜的选择性渗透性。 提供了用于堵塞二维材料中的缺陷和孔隙以及用于选择性地堵塞复合膜中的孔隙的方法。 选择性堵塞的材料和膜可用于过滤和其他应用。