Carbon Nanotubes Grown on Nanostructured Flake Substrates and Methods for Production Thereof
    11.
    发明申请
    Carbon Nanotubes Grown on Nanostructured Flake Substrates and Methods for Production Thereof 有权
    纳米结构薄片基材上生长的碳纳米管及其生产方法

    公开(公告)号:US20100028613A1

    公开(公告)日:2010-02-04

    申请号:US12260561

    申请日:2008-10-29

    IPC分类号: B32B3/00 B05D3/10

    摘要: Carbon nanotubes grown on nanostructured flake substrates are disclosed. The nanostructured flake substrates include a catalyst support layer and at least one catalyst layer. Carbon nanotubes grown on the nanostructured flake substrates can have very high aspect ratios. Further, the carbon nanotubes can be aligned on the nanostructured flake substrates. Through routine optimization, the nanostructured flake substrates may be used to produce single-wall, double-wall, or multi-wall carbon nanotubes of various lengths and diameters. The nanostructured flake substrates produce very high yields of carbon nanotubes per unit weight of substrate. Methods for making the nanostructured flake substrates and for using the nanostructured flake substrates in carbon nanotube synthesis are disclosed.

    摘要翻译: 公开了纳米结构薄片基底上生长的碳纳米管。 纳米结构薄片基材包括催化剂载体层和至少一个催化剂层。 生长在纳米结构薄片基材上的碳纳米管可以具有非常高的纵横比。 此外,碳纳米管可以在纳米结构的片状基底上取向。 通过常规优化,纳米结构薄片基片可用于生产各种长度和直径的单壁,双壁或多壁碳纳米管。 纳米结构的薄片基材每单位重量的底物产生非常高的碳纳米管产量。 公开了制备纳米结构薄片基片和在碳纳米管合成中使用纳米结构薄片基片的方法。

    REDOX FRACTIONATION OF SINGLE-WALLED CARBON NANOTUBES
    15.
    发明申请
    REDOX FRACTIONATION OF SINGLE-WALLED CARBON NANOTUBES 审中-公开
    单壁碳纳米管的氧化还原分解

    公开(公告)号:US20100176349A1

    公开(公告)日:2010-07-15

    申请号:US12443213

    申请日:2007-09-27

    IPC分类号: H01B1/04 C01B31/00 B07B13/00

    摘要: A method for separating fractions of single-walled carbon nanotubes includes exposing a solution containing fractions of single-walled carbon nanotubes to a reducing agent and separating the resulting reaction products. An alternate method for separating fractions of single-walled carbon nanotubes includes exposing a solution containing fractions of single-walled carbon nanotubes to an oxidizing agent and separating the resulting reaction products. A third method for separating fractions of single-walled carbon nanotubes includes exposing a solution containing fractions of substantially non-functionalized single-walled carbon nanotubes to a charge transfer complex agent and separating the resulting reaction products. These methods allow the production of single-walled carbon nanotubes of approximately 95 to 99% metallic and semiconducting types.

    摘要翻译: 分离单壁碳纳米管部分的方法包括将含有单壁碳纳米管的溶液暴露于还原剂中并分离所得的反应产物。 用于分离单壁碳纳米管部分的替代方法包括将含有单壁碳纳米管的溶液暴露于氧化剂中并分离所得的反应产物。 用于分离单壁碳纳米管级分的第三种方法包括将含有基本上非官能化的单壁碳纳米管馏分的溶液暴露于电荷转移络合剂并分离所得反应产物。 这些方法允许生产约95至99%的金属和半导体类型的单壁碳纳米管。

    MULTI-STEP PURIFICATION OF SINGLE-WALL CARBON NANOTUBES
    16.
    发明申请
    MULTI-STEP PURIFICATION OF SINGLE-WALL CARBON NANOTUBES 有权
    单壁碳纳米管的多步纯化

    公开(公告)号:US20100008843A1

    公开(公告)日:2010-01-14

    申请号:US11291638

    申请日:2005-11-30

    IPC分类号: D01F9/12 B82B3/00

    摘要: The present invention relates to processes for the purification of single-wall carbon nanotubes (SWNTs). Known methods of single-wall carbon nanotube production result in a single-wall carbon nanotube product that contains single-wall carbon nanotubes in addition to impurities including residual metal catalyst particles and amounts of small amorphous carbon sheets that surround the catalyst particles and appear on the side of the single-wall carbon nanotubes. The present purification processes remove the extraneous carbon as well as metal-containing residual catalyst particles.

    摘要翻译: 本发明涉及单壁碳纳米管(SWNT)的纯化方法。 单壁碳纳米管生产的已知方法导致单壁碳纳米管产物,除了包含残留金属催化剂颗粒的杂质和围绕催化剂颗粒的小的无定形碳片的含量之外,还包含单壁碳纳米管,并出现在 侧壁的单壁碳纳米管。 本纯化方法除去了外来的碳以及含金属的残留催化剂颗粒。

    Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst
    17.
    发明授权
    Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst 失效
    使用相转移催化剂的基于长度的液 - 液萃取碳纳米管

    公开(公告)号:US07578941B2

    公开(公告)日:2009-08-25

    申请号:US11289000

    申请日:2005-11-29

    IPC分类号: B01D11/02

    摘要: The present invention is generally directed to new liquid-liquid extraction methods for the length-based separation of carbon nanotubes (CNTs) and other 1-dimensional nanostructures. In some embodiments, such methods are directed to separating SWNTs on the basis of their length, wherein such methods comprise the steps of: (a) functionalizing SWNTs to form functionalized SWNTs with ionizable functional moieties; (b) dissolving said functionalized SWNTs in a polar solvent to form a polar phase; (c) dissolving a substoichiometric (relative to the amount of ionizable functional moieties present on the SWNTs) amount of a phase transfer agent in a non-polar solvent to form a non-polar phase; (d) combining the polar and non-polar phases to form a bi-phase mixture; (e) adding a cationic donor species to the bi-phase mixture; and (f) agitating the bi-phase mixture to effect the preferential transport of short SWNTs into the non-polar phase such that the non-polar phase is enriched in short SWNTs and the polar phase is enriched in longer SWNTs. In other embodiments, analogous methods are used for the length-based separation of any type of CNT, and more generally, for any type of 1-dimensional nanostructure.

    摘要翻译: 本发明一般涉及用于碳纳米管(CNT)和其它一维纳米结构的基于长度的分离的新的液 - 液萃取方法。 在一些实施方案中,这样的方法涉及基于其长度分离SWNT,其中此类方法包括以下步骤:(a)使SWNT官能化形成具有可离子化功能部分的官能化SWNT; (b)将所述官能化的单壁碳纳米管溶解在极性溶剂中以形成极性相; (c)在非极性溶剂中将相转移剂的亚化学计量(相对于存在于SWNT上的可离子化官能团的量)量溶解以形成非极性相; (d)组合极性和非极性相以形成双相混合物; (e)向双相混合物中加入阳离子供体物质; 和(f)搅拌双相混合物以实现短的单壁碳纳米管优先转运到非极性相中,使得非极性相富集在短的单壁碳纳米管中,极性相富集较长的单壁碳纳米管。 在其它实施方案中,类似的方法用于任何类型的CNT的长度分离,更通常地,对于任何类型的一维纳米结构。

    Halogen-activated chemical vapor deposition of diamond
    19.
    发明授权
    Halogen-activated chemical vapor deposition of diamond 失效
    金刚石的卤素化学气相沉积

    公开(公告)号:US5589231A

    公开(公告)日:1996-12-31

    申请号:US417050

    申请日:1995-04-04

    CPC分类号: C23C16/27 C23C16/277

    摘要: The present invention is directed to a method of producing diamond films through the thermal dissociation of molecular chlorine into atomic chlorine in a heated graphite heat exchanger at temperatures of from about 1,100.degree. C. to about 1,800.degree. C. The atomic chlorine is subsequently rapidly mixed with molecular hydrogen and carbon-containing species downstream. Atomic hydrogen and the carbon precursors are produced through rapid hydrogen abstraction reactions of atomic chlorine with molecular hydrogen and hydrocarbons at the point where they mix. The mixed gases then flow across a heated substrate, where diamond is deposited as a film. Diamond deposits have been confirmed by Raman spectroscopy.

    摘要翻译: 本发明涉及通过在约1100℃至约1800℃的温度下在加热的石墨换热器中将分子氯热解离成原子氯来制造金刚石膜的方法。随后将原子氯快速混合 分子氢和含碳物质下游。 原子氢和碳前体通过原子氯与分子氢和烃在混合点的快速抽出氢反应产生。 然后,混合气体流过加热的基底,其中金刚石作为膜沉积。 金刚石矿床已经通过拉曼光谱证实。

    REBAR HYBRID MATERIALS AND METHODS OF MAKING THE SAME
    20.
    发明申请
    REBAR HYBRID MATERIALS AND METHODS OF MAKING THE SAME 有权
    REBAR混合材料及其制备方法

    公开(公告)号:US20150023858A1

    公开(公告)日:2015-01-22

    申请号:US14335566

    申请日:2014-07-18

    摘要: In some embodiments, the present disclosure pertains to methods of forming a reinforcing material by: (1) depositing a first material onto a catalyst surface; and (2) forming a second material on the catalyst surface, where the second material is derived from and associated with the first material. In some embodiments, the first material includes, without limitation, carbon nanotubes, graphene nanoribbons, boron nitride nanotubes, chalcogenide nanotubes, carbon onions, and combinations thereof. In some embodiments, the formed second material includes, without limitation, graphene, hexagonal boron nitride, chalcogenides, and combinations thereof. In additional embodiments, the methods of the present disclosure also include a step of separating the formed reinforcing material from the catalyst surface, and transferring the separated reinforcing material onto a substrate without the use of polymers. Additional embodiments of the present disclosure pertain to reinforcing materials formed by the aforementioned methods.

    摘要翻译: 在一些实施方案中,本公开涉及通过以下步骤形成增强材料的方法:(1)将第一材料沉积到催化剂表面上; 和(2)在所述催化剂表面上形成第二材料,其中所述第二材料衍生并与所述第一材料相关联。 在一些实施方案中,第一材料包括但不限于碳纳米管,石墨烯纳米带,氮化硼纳米管,硫族化物纳米管,碳鎓和它们的组合。 在一些实施例中,所形成的第二材料包括但不限于石墨烯,六方氮化硼,硫族化合物及其组合。 在另外的实施方案中,本公开的方法还包括将形成的增强材料从催化剂表面分离并将分离的增强材料转移到基材上而不使用聚合物的步骤。 本公开的另外的实施方案涉及通过上述方法形成的增强材料。