Process and apparatus for producing single-walled carbon nanotubes
    3.
    发明申请
    Process and apparatus for producing single-walled carbon nanotubes 有权
    用于生产单壁碳纳米管的方法和设备

    公开(公告)号:US20060039849A1

    公开(公告)日:2006-02-23

    申请号:US10976216

    申请日:2004-10-28

    IPC分类号: D01F9/12

    摘要: A process and apparatus for catalytic production of single walled carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferred process conditions have been attained, thereby controlling the quantity and form of carbon nanotubes produced. The reaction gas is preferably provided at a high space velocity to minimize CO2 build-up. The process also contemplates processes and apparatus which recycle and reuse the gases and catalytic particulate materials, thereby maximizing cost efficiency, reducing wastes, reducing the need for additional raw materials, and producing the carbon nanotubes, especially SWNTs, in greater quantities and for lower costs.

    摘要翻译: 用于催化生产单壁碳纳米管的方法和装置。 催化颗粒在连续阶段暴露于不同的工艺条件,其中催化剂颗粒不与反应(催化)气体接触,直到获得优选的工艺条件,从而控制产生的碳纳米管的数量和形式。 优选以高空间速度提供反应气体以最小化CO 2 2积聚。 该方法还考虑了再循环和再利用气体和催化颗粒材料的方法和设备,从而最大限度地提高成本效率,减少废物,减少对额外原材料的需求,以及大量生产碳纳米管,特别是SWNT,并降低成本 。

    Carbon nanotube pastes and methods of use
    10.
    发明申请
    Carbon nanotube pastes and methods of use 有权
    碳纳米管膏和使用方法

    公开(公告)号:US20060039848A1

    公开(公告)日:2006-02-23

    申请号:US10989124

    申请日:2004-11-15

    IPC分类号: D01F9/12

    摘要: Dispersable pastes comprising single-walled carbon nanotubes (SWNT) in water or in an organic solvent are prepared. The method of preparing the dispersable pastes comprises in general the following steps: a) removal of the catalyst used during the synthesis of SWNT; b) while the SWNT are still wet, addition of the appropriate amount of solvent, in a solvent/SWNT ratio which preferably varies between 30:1 and 100:1, depending on the desired viscosity of the paste; and c) high-energy horn sonication with a dismembrator probe. The resulting pastes are suitable for easy redispersion in solvents and incorporation in various matrices such as polymers. They are also suitable to be impregnated with metal precursors such as noble metal compounds for example, Pt. Appropriate drying and thermal treatments of the impregnated material produce metal-SWNT composites in which small metal clusters can be uniformly dispersed over the nanotube surface. These metal-SWNT composites may find applications as catalysts as well as electrodes for fuel cells, batteries, and capacitors.

    摘要翻译: 制备在水中或有机溶剂中包含单壁碳纳米管(SWNT)的可分散糊料。 制备可分散浆料的方法通常包括以下步骤:a)除去在合成SWNT期间使用的催化剂; b)当SWNT仍然是湿的时候,加入适量的溶剂,溶剂/ SWNT比例优选在30:1和100:1之间变化,这取决于糊料的所需粘度; 和c)高能喇叭超声处理与解剖探头。 所得糊状物适于在溶剂中容易地再分散并掺入各种基质如聚合物中。 它们也适合用金属前体浸渍,例如贵金属化合物,例如Pt。 浸渍材料的适当干燥和热处理产生金属-SWNT复合材料,其中小金属簇可以均匀地分散在纳米管表面上。 这些金属SWNT复合材料可以用作催化剂以及用于燃料电池,电池和电容器的电极。