METHOD FOR PREPARATION AND SEPARATION OF ATOMIC LAYER THICKNESS PLATELETS FROM GRAPHITE OR OTHER LAYERED MATERIALS
    1.
    发明申请
    METHOD FOR PREPARATION AND SEPARATION OF ATOMIC LAYER THICKNESS PLATELETS FROM GRAPHITE OR OTHER LAYERED MATERIALS 审中-公开
    从石墨或其他层状材料制备和分离原子层厚度板的方法

    公开(公告)号:WO2016053889A1

    公开(公告)日:2016-04-07

    申请号:PCT/US2015/052693

    申请日:2015-09-28

    IPC分类号: C01B31/04

    摘要: A method and system of separating graphene nanoplatelets (GNPs) from initial graphite raw material is disclosed. The raw material is exfoliated to create a percentage of separated GNPs in a resulting bulk mixture. Agglomerates between the separated graphene nanoplatelets are broken. The mixture is separated into fractions having nanoparticles of different GNP content and size distribution. Each different range of nanoparticles is separated into GNPs and graphite nanopowder via a medium flow process or via electrostatic separation or both.

    摘要翻译: 公开了从初始石墨原料分离石墨烯纳米片(GNP)的方法和系统。 原料被剥离以产生所得体积混合物中分离的GNP的百分比。 分离的石墨烯纳米片之间的团聚体被破坏。 将混合物分离成具有不同GNP含量和尺寸分布的纳米颗粒的级分。 通过介质流动过程或通过静电分离或两者将每种不同范围的纳米颗粒分离成GNP和石墨纳米粉末。

    LAYER-BY-LAYER REMOVAL OF GRAPHENE
    2.
    发明申请
    LAYER-BY-LAYER REMOVAL OF GRAPHENE 审中-公开
    逐层去除石墨

    公开(公告)号:WO2012094045A3

    公开(公告)日:2014-04-03

    申请号:PCT/US2011055747

    申请日:2011-10-11

    IPC分类号: B32B9/00

    摘要: The present invention provides methods of selectively removing one or more graphene layers from a graphene material by: (1) applying a metal to a surface of the graphene material; and (2) applying a hydrogen containing solution to the surface of the graphene material that is associated with the metal. The hydrogen containing solution dissolves the metal along with one or more layers of graphene associated with the metal, thereby removing the layer(s) of graphene from the graphene material. In some embodiments, the hydrogen containing solution is an acidic solution, such as hydrochloric acid. In some embodiments, the metal is zinc. In some embodiments, the methods of the present invention are utilized to selectively remove one or more layers of graphene from one or more targeted sites on the surface of a graphene material.

    摘要翻译: 本发明提供了通过以下步骤从石墨烯材料中选择性地去除一个或多个石墨烯层的方法:(1)将金属施加到石墨烯材料的表面; 和(2)将含氢溶液施加到与金属相关联的石墨烯材料的表面。 含氢溶液与一个或多个与金属相关的石墨烯层一起溶解金属,从而从石墨烯材料去除石墨烯层。 在一些实施方案中,含氢溶液是酸性溶液,例如盐酸。 在一些实施方案中,金属是锌。 在一些实施方案中,本发明的方法用于从石墨烯材料表面上的一个或多个目标位点选择性地除去一层或多层石墨烯。

    NANOPARTICLE MODIFICATION AND PERFORATION OF GRAPHENE
    5.
    发明申请
    NANOPARTICLE MODIFICATION AND PERFORATION OF GRAPHENE 审中-公开
    石墨的纳米颗粒改性和性能

    公开(公告)号:WO2017023377A1

    公开(公告)日:2017-02-09

    申请号:PCT/US2016/027610

    申请日:2016-04-14

    摘要: Multi-layer sheets of graphene-based material having a plurality of pores extending therethrough are described herein. Methods for making the sheets are also provided and include exposing a graphene-based material comprising multilayer graphene having from 2 to 10 layers of graphene to a particle beam comprising nanoparticles, the nanoparticles having an energy of at least 2 keV per nanoparticle.

    摘要翻译: 这里描述了具有延伸穿过其中的多个孔的多层石墨烯材料。 还提供了制备片材的方法,包括将含有2至10层石墨烯的多层石墨烯的基于石墨烯的材料暴露于包含纳米颗粒的粒子束,所述纳米颗粒具有每纳米颗粒至少2keV的能量。

    一种结构可控的三维石墨烯多孔材料制备方法

    公开(公告)号:WO2016101436A1

    公开(公告)日:2016-06-30

    申请号:PCT/CN2015/075960

    申请日:2015-04-07

    IPC分类号: C01B31/04

    摘要: 本发明公开了一种结构可控的三维石墨烯多孔材料制备方法,包括:构建三维多孔结构CAD模型,并通过增材制造技术制得相应形状的三维多孔金属结构;在惰性气体的保护氛围下,将所制得的三维多孔金属结构升温至900℃~1500℃,然后冷却至室温;然后进行喷砂和超声清洗处理以获得金属模板;通过化学气相沉积法在金属模板上生长石墨烯薄膜;配置腐蚀液并在60℃~90℃的温度下回流溶解金属模板,经洗涤和干燥处理后即得到三维石墨烯多孔材料产品。通过本发明,能够有效克服现有技术中所存在的外部形状和内部结构不可控的缺陷,同时具备便于操控、制备周期短和适应面广等特点,因而尤其适用于大批量规模生产高质量、多功能的三维石墨烯多孔材料的制造场合。

    COATING OF GRAPHENE
    10.
    发明申请
    COATING OF GRAPHENE 审中-公开
    石墨涂层

    公开(公告)号:WO2014182169A2

    公开(公告)日:2014-11-13

    申请号:PCT/NL2014050291

    申请日:2014-05-08

    申请人: UNIV DELFT TECH

    IPC分类号: C01B31/04

    摘要: The present invention is in the field of highly crystalline graphene and coating said graphene with a layer. Said graphene may have further structures, such as nanopores, nanogaps, and nanoribbons. The coated graphene can be used for biomolecular analysis and modification, such as DNA-sequencing, as a sensor, etc. The invention therefor also relates to use of coated graphene.

    摘要翻译: 本发明在高结晶石墨烯的领域中,并且用一层涂覆所述石墨烯。 所述石墨烯可以具有进一步的结构,例如纳米孔,纳米角和纳米带。 涂覆的石墨烯可以用作生物分子分析和修饰,例如DNA测序,作为传感器等。本发明还涉及涂覆石墨烯的用途。