Method and apparatus for synthesizing carbon nanotubes using ultrasonic evaporation
    2.
    发明申请
    Method and apparatus for synthesizing carbon nanotubes using ultrasonic evaporation 审中-公开
    使用超声波蒸发合成碳纳米管的方法和装置

    公开(公告)号:US20080102019A1

    公开(公告)日:2008-05-01

    申请号:US11723785

    申请日:2007-03-22

    IPC分类号: D01F9/12

    摘要: Disclosed herein is an apparatus and method for synthesizing carbon nanotubes, including a fuel supply unit for supplying a large amount of liquid metal catalyst mixture using a syringe pump for quantitatively supplying a liquid metal catalyst mixture, mixed with hydrocarbon-based liquid carbon sources such as xylene, toluene, benzene and the like, and metal catalytic particles, such as iron, nickel, cobalt, molybdenum and the like, and a general liquid pump for supplying a liquid metal catalyst mixture depending on the amount thereof; an evaporation unit for evaporating and atomizing the liquid metal catalyst mixture supplied from the fuel supply unit into precursors having a uniform size on the nanometer scale; a carrier gas supply unit for transferring particles atomized in the evaporation unit to a reactor and transferring carrier gas, having an influence on the synthesis of carbon nanotubes, to the reactor; a horizontally oriented reaction unit for synthesizing carbon nanotubes in large quantities using the carrier gas supplied from the carrier gas supply unit and the precursors formed in the evaporation unit; a filtering unit comprising a filter for filtering residual particles among the atomized particles synthesized into carbon nanotubes in the horizontally oriented reaction unit and some of the carbon nanotubes synthesized in the vapor phase; and a vacuum generation unit comprising a vacuum pump configured to be connected with the filtering unit, decrease pressure in the reactor, and remove oxygen remaining in the reactor, or a continuous collection unit in the case where the apparatus includes a vertical type reaction unit.

    摘要翻译: 本文公开了一种用于合成碳纳米管的装置和方法,包括用于使用注射泵提供大量液态金属催化剂混合物的燃料供应单元,用于定量供应液态金属催化剂混合物,与烃类液体碳源混合, 二甲苯,甲苯,苯等,以及金属催化剂颗粒如铁,镍,钴,钼等,以及用于根据其量供应液态金属催化剂混合物的一般液体泵; 蒸发单元,用于将从燃料供应单元供应的液态金属催化剂混合物蒸发和雾化成具有纳米尺度的均匀尺寸的前体; 用于将在蒸发单元中雾化的粒子转移到反应器并将对碳纳米管的合成具有影响的载气转移到反应器的载气供给单元; 使用从载气供给单元供给的载气和在蒸发单元中形成的前体大量合成碳纳米管的水平取向反应单元; 过滤单元,其包括用于过滤在水合取向反应单元中合成为碳纳米管的雾化颗粒中的残留颗粒的过滤器和在气相中合成的一些碳纳米管; 以及真空发生单元,其包括被配置为与所述过滤单元连接的真空泵,减小所述反应器中的压力,并且除去所述反应器中残留的氧气,或者所述设备包括垂直型反应单元的情况下的连续收集单元。