Selection of nanoparticles using CO2-expanded liquids
    33.
    发明授权
    Selection of nanoparticles using CO2-expanded liquids 有权
    使用二氧化碳膨胀液体选择纳米颗粒

    公开(公告)号:US08377831B2

    公开(公告)日:2013-02-19

    申请号:US12082189

    申请日:2008-04-08

    IPC分类号: H01L21/31

    摘要: A method for size selection of nanostructures comprising utilizing a gas-expanded liquids (GEL) and controlled pressure to precipitate desired size populations of nanostructures, e.g., monodisperse. The GEL can comprise CO2 antisolvent and an organic solvent. The method can be carried out in an apparatus comprising a first open vessel configured to allow movement of a liquid/particle solution to specific desired locations within the vessel, a second pressure vessel, a location controller for controlling location of the particles and solution within the first vessel, a inlet for addition of antisolvent to the first vessel, and a device for measuring the amount of antisolvent added. Also disclosed is a method for forming nanoparticle thin films comprising utilizing a GEL containing a substrate, pressurizing the solution to precipitate and deposit nanoparticles onto the substrate, removing the solvent thereby leaving a thin nanoparticle film, removing the solvent and antisolvent, and drying the film.

    摘要翻译: 纳米结构尺寸选择的方法包括利用气体膨胀液体(GEL)和受控压力来沉淀所需尺寸的纳米结构体,例如单分散。 GEL可以包含CO 2抗溶剂和有机溶剂。 该方法可以在包括构造成允许液体/颗粒溶液移动到容器内的特定所需位置的第一开放容器的设备中进行,第二压力容器,位置控制器,用于控制颗粒和溶液的位置 第一容器,用于向第一容器添加抗溶剂的入口,以及用于测量加入的抗溶剂量的装置。 还公开了一种形成纳米颗粒薄膜的方法,其包括利用含有底物的GEL,使溶液加压沉淀并将纳米颗粒沉积到基底上,除去溶剂,从而留下薄的纳米颗粒膜,除去溶剂和反溶剂,并干燥该膜 。

    Selection and deposition of nanoparticles using CO2-expanded liquids
    35.
    发明申请
    Selection and deposition of nanoparticles using CO2-expanded liquids 有权
    使用二氧化碳膨胀液体选择和沉积纳米颗粒

    公开(公告)号:US20100323527A1

    公开(公告)日:2010-12-23

    申请号:US12082189

    申请日:2008-04-08

    IPC分类号: H01L21/30

    摘要: A method for size selection of nanostructures comprising utilizing a gas-expanded liquids (GEL) and controlled pressure to precipitate desired size populations of nanostructures, e.g., monodisperse. The GEL can comprise CO2 antisolvent and an organic solvent. The method can be carried out in an apparatus comprising a first open vessel configured to allow movement of a liquid/particle solution to specific desired locations within the vessel, a second pressure vessel, a location controller for controlling location of the particles and solution within the first vessel, a inlet for addition of antisolvent to the first vessel, and a device for measuring the amount of antisolvent added. Also disclosed is a method for forming nanoparticle thin films comprising utilizing a GEL containing a substrate, pressurizing the solution to precipitate and deposit nanoparticles onto the substrate, removing the solvent thereby leaving a thin nanoparticle film, removing the solvent and antisolvent, and drying the film.

    摘要翻译: 纳米结构尺寸选择的方法包括利用气体膨胀液体(GEL)和受控压力来沉淀所需尺寸的纳米结构体,例如单分散。 GEL可以包含CO 2抗溶剂和有机溶剂。 该方法可以在包括构造成允许液体/颗粒溶液移动到容器内的特定所需位置的第一开放容器的设备中进行,第二压力容器,位置控制器,用于控制颗粒和溶液的位置 第一容器,用于向第一容器添加抗溶剂的入口,以及用于测量加入的抗溶剂量的装置。 还公开了一种用于形成纳米颗粒薄膜的方法,其包括使用含有底物的GEL,将溶液加压沉淀并将纳米颗粒沉积到基底上,除去溶剂从而留下薄的纳米颗粒膜,除去溶剂和反溶剂,并干燥该膜 。

    Recovery of volatile organic compounds from gas streams
    39.
    发明授权
    Recovery of volatile organic compounds from gas streams 失效
    从气流中回收挥发性有机化合物

    公开(公告)号:US5779768A

    公开(公告)日:1998-07-14

    申请号:US619846

    申请日:1996-03-19

    摘要: A condensable component present at low concentration in a feed gas mixture containing the condensable component and a noncondensable component is recovered by selective adsorption from the feed gas mixture in an adsorption step, the resulting adsorbed condensable component is desorbed by a heated purge gas in a regeneration step to yield a purge gas effluent enriched in desorbed condensable component, and the purge gas effluent is cooled to condense and recover the condensable component as a liquid. An improvement comprises, during a time period of the regeneration step in which the concentration of the condensable component in the purge gas effluent reaches a maximum value, (a) dividing the purge gas effluent into a first and a second portion, (b) cooling the first portion of the purge gas effluent to a temperature sufficient to condense substantially all of the condensable component present therein and recovering the resulting condensate therefrom, and (c) cooling a second portion of the purge gas effluent and combining the resulting cooled gas stream with the feed gas mixture to yield a total feed mixture for the adsorption step.

    摘要翻译: 通过在吸附步骤中从进料气体混合物中选择性吸附来回收在含有可冷凝组分和不可冷凝组分的进料气体混合物中低浓度存在的可冷凝组分,所得吸附的可冷凝组分在再生中被加热的吹扫气体解吸 逐步产生富集解吸的可冷凝组分的吹扫气体流出物,并将吹扫气体流出物冷却以冷凝并回收可冷凝组分作为液体。 改进包括在再生步骤的时间段内,其中净化气体流出物中的可冷凝组分的浓度达到最大值,(a)将净化气体流出物分成第一和第二部分,(b)冷却 净化气体流出物的第一部分达到足以冷凝基本上所有可冷凝组分的温度并从其中回收所得的冷凝物,和(c)冷却第二部分吹扫气流出物并将所得到的冷却气流与 进料气体混合物以产生用于吸附步骤的总进料混合物。