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    Aerogel metallic compositions
    3.
    发明申请
    Aerogel metallic compositions 有权
    气凝胶金属组合物

    公开(公告)号：US20050131163A1

    公开(公告)日：2005-06-16

    申请号：US11047200

    申请日：2005-01-28

    申请人： Wendell Rhine ,  Jing Wang ,  Redouane Begag

    发明人： Wendell Rhine ,  Jing Wang ,  Redouane Begag

    IPC分类号： B01J13/00 ,  C08G73/10 ,  C08J9/28 ,  H01M4/90 ,  C01B31/02

    CPC分类号： C08J9/28 ,  B01J13/0091 ,  C08G73/10 ,  C08G73/1028 ,  C08G73/106 ,  C08J2201/0502 ,  C08J2203/08 ,  C08J2205/026 ,  C08J2379/08 ,  Y10T428/31721

    摘要： A preparation process of polyimide aerogels that composed of aromatic dianhydrides and aromatic diamines or a combined aromatic and aliphatic diamines is described. Also descried is a process to produce carbon aerogels derived from polyimide aerogel composed of a rigid aromatic diamine and an aromatic dianhydride. Finally, the processes to produce carbon aerogels or xerogel-aerogel hybrid, both of which impregnated with highly dispersed transition metal clusters, and metal carbide aerogels, deriving from the polyimide aerogels composed of a rigid aromatic diamine and an aromatic dianhydride, are described. The polyimide aerogels and the polyimide aerogel derivatives consist of interconnecting mesopores with average pore size at 10 to 30 nm and a mono-dispersed pore size distribution. The gel density could be as low as 0.008 g/cc and accessible surface area as high as 1300 m2/g.

    摘要翻译： 描述了由芳族二酸酐和芳族二胺或组合的芳族和脂族二胺组成的聚酰亚胺气凝胶的制备方法。 还描述了生产由由刚性芳族二胺和芳族二酐组成的聚酰亚胺气凝胶衍生的碳气凝胶的方法。 最后，描述了从由刚性芳族二胺和芳族二酐组成的聚酰亚胺气凝胶产生的碳气凝胶或干凝胶 - 气凝胶混合物的方法，两者均浸渍有高度分散的过渡金属簇和金属碳化物气凝胶。 聚酰亚胺气凝胶和聚酰亚胺气凝胶衍生物由平均孔径为10至30nm的互连介孔和单分散孔径分布组成。 凝胶密度可以低至0.008g / cc，可接触的表面积高达1300m 2 / g。

    Aerogel metallic compositions
    6.
    发明授权
    Aerogel metallic compositions 有权
    气凝胶金属组合物

    公开(公告)号：US07071287B2

    公开(公告)日：2006-07-04

    申请号：US11047200

    申请日：2005-01-28

    申请人： Wendell Rhine ,  Jing Wang ,  Redouane Begag

    发明人： Wendell Rhine ,  Jing Wang ,  Redouane Begag

    IPC分类号： C08G69/28 ,  C08G73/10 ,  C01B31/02

    CPC分类号： C08J9/28 ,  B01J13/0091 ,  C08G73/10 ,  C08G73/1028 ,  C08G73/106 ,  C08J2201/0502 ,  C08J2203/08 ,  C08J2205/026 ,  C08J2379/08 ,  Y10T428/31721

    摘要： A preparation process of polyimide aerogels that composed of aromatic dianhydrides and aromatic diamines or a combined aromatic and aliphatic diamines is described. Also descried is a process to produce carbon aerogels derived from polyimide aerogel composed of a rigid aromatic diamine and an aromatic dianhydride. Finally, the processes to produce carbon aerogels or xerogel-aerogel hybrid, both of which impregnated with highly dispersed transition metal clusters, and metal carbide aerogels, deriving from the polyimide aerogels composed of a rigid aromatic diamine and an aromatic dianhydride, are described. The polyimide aerogels and the polyimide aerogel derivatives consist of interconnecting mesopores with average pore size at 10 to 30 nm and a mono-dispersed pore size distribution. The gel density could be as low as 0.008 g/cc and accessible surface area as high as 1300 m2/g.

    摘要翻译： 描述了由芳族二酸酐和芳族二胺或组合的芳族和脂族二胺组成的聚酰亚胺气凝胶的制备方法。 还描述了生产由由刚性芳族二胺和芳族二酐组成的聚酰亚胺气凝胶衍生的碳气凝胶的方法。 最后，描述了从由刚性芳族二胺和芳族二酐组成的聚酰亚胺气凝胶产生的碳气凝胶或干凝胶 - 气凝胶混合物的方法，两者均浸渍有高度分散的过渡金属簇和金属碳化物气凝胶。 聚酰亚胺气凝胶和聚酰亚胺气凝胶衍生物由平均孔径为10至30nm的互连介孔和单分散孔径分布组成。 凝胶密度可以低至0.008g / cc，可接触的表面积高达1300m 2 / g。

    Rapid aerogel production process
    7.
    发明授权
    Rapid aerogel production process 有权
    快速气凝胶生产过程

    公开(公告)号：US06670402B1

    公开(公告)日：2003-12-30

    申请号：US09693390

    申请日：2000-10-20

    申请人： Kang P. Lee ,  Redouane Begag ,  Zlatko Altiparmakov

    发明人： Kang P. Lee ,  Redouane Begag ,  Zlatko Altiparmakov

    IPC分类号： B01J1300

    CPC分类号： C01B33/1585 ,  B01J13/0091 ,  Y02P20/544

    摘要： Methods of more rapidly producing aerogel products by means of a rapid solvent exchange of solvent inside wet gels with supercritical CO2 by injecting supercritical, rather than liquid, CO2 into an extractor that has been pre-heated and pre-pressurized to substantially supercritical conditions or above. Preferably, pressure waves are applied to the supercritical CO2 to enhance the solvent exchange. The rapid solvent exchange process is followed by depressurization, optionally with a gas exchange. Preferably, pressure waves are used to speed up the depressurization. The process greatly reduces the time for forming aerogel products.

    摘要翻译： 通过在具有超临界CO 2的湿凝胶中快速溶剂交换溶剂，通过将超临界而不是液体CO 2注入到已经被预热和预加压至基本上超临界条件或以上的萃取器中来更快速地生产气凝胶产品的方法 。 优选地，将压力波施加到超临界CO 2以增强溶剂交换。 快速的溶剂交换过程之后是减压，任选地进行气体交换。 优选地，使用压力波来加速减压。 该方法大大减少了形成气凝胶产品的时间。