Pyrolytic formation of metallic nanoparticles
    2.
    发明授权
    Pyrolytic formation of metallic nanoparticles 有权
    金属纳米粒子的热解形成

    公开(公告)号:US07700710B2

    公开(公告)日:2010-04-20

    申请号:US12051179

    申请日:2008-03-19

    摘要: A method and a ceramic made therefrom by: providing a composition of a compound having the formula below and a metallic component, and pyrolyzing the composition. R is an organic group. The value n is a positive integer. Q is an acetylenic repeat unit having an acetylene group, crosslinked acetylene group, (MLx)y-acetylene complex, and/or crosslinked (MLx)y-acetylene complex. M is a metal. L is a ligand. The values x and y are positive integers. The metallic component is the (MLx)y-acetylene complex in the compound or a metallic compound capable of reacting with the acetylenic repeat unit to form the (MLx)y-acetylene complex. The ceramic comprises metallic nanoparticles.

    摘要翻译: 通过以下方法制备的方法和陶瓷:提供具有下式的化合物和金属组分的组合物,并热解组合物。 R是有机基团。 值n为正整数。 Q是具有乙炔基的乙炔重复单元,交联的乙炔基,(MLx)y-乙炔配合物和/或交联的(MLx)y-乙炔络合物。 M是金属。 L是配体。 值x和y是正整数。 金属组分是化合物中的(MLx)y-乙炔配合物或能够与炔属重复单元反应形成(MLx)γ-乙炔络合物的金属化合物。 陶瓷包含金属纳米粒子。

    Ceramic material made from siloxane-acetylene polymer containing metal-acetylene complex
    3.
    发明授权
    Ceramic material made from siloxane-acetylene polymer containing metal-acetylene complex 有权
    由含有金属 - 乙炔络合物的硅氧烷 - 乙炔聚合物制成的陶瓷材料

    公开(公告)号:US07579424B2

    公开(公告)日:2009-08-25

    申请号:US11239454

    申请日:2005-09-27

    摘要: A ceramic made by providing a composition and pyrolyzing the composition. The composition has siloxane polymer, metallic polymer, siloxane thermoset, and/or metallic thermoset having a backbone having: an acetylenic repeat unit; and —SiR2—(O—SiR2)n— and/or —SiR2—(O—SiR2)n-[Cb-SiR2—(O—SiR2)n]m—. R is an organic group, Cb is a carborane, and n and m are integers greater than or equal to zero. Any crosslinking is a crosslink between acetylene groups and/or a polycarbosiloxane crosslink. The composition also has free metal atoms, metal clusters, or metal nanoparticles dispersed homogeneously throughout the composition; (MLx)y-acetylene complex in the backbone; and/or a metallic compound for forming a (MLx)y-acetylene complex. M is a metal, L is a ligand, x and y are positive integers.

    摘要翻译: 通过提供组合物和热解组合物制成的陶瓷。 该组合物具有硅氧烷聚合物,金属聚合物,硅氧烷热固性材料和/或金属热固性材料,其主链具有:炔属重复单元; 和-SiR 2 - (O-SiR 2)n - 和/或-SiR 2 - (O-SiR 2)n - [Cb -SiR 2 - (O-SiR 2)n] m - 。 R是有机基团,Cb是碳硼烷,n和m是大于或等于零的整数。 任何交联是乙炔基和/或聚碳硅氧烷交联之间的交联。 该组合物还具有均匀分散在整个组合物中的游离金属原子,金属簇或金属纳米颗粒; (MLx)y-乙炔络合物; 和/或用于形成(MLx)y-乙炔络合物的金属化合物。 M是金属,L是配体,x和y是正整数。

    Bulk synthesis of carbon nanotubes from metallic and ethynyl compounds
    5.
    发明授权
    Bulk synthesis of carbon nanotubes from metallic and ethynyl compounds 有权
    从金属和乙炔化合物大量合成碳纳米管

    公开(公告)号:US07722851B2

    公开(公告)日:2010-05-25

    申请号:US12029484

    申请日:2008-02-12

    IPC分类号: B82B3/00

    摘要: A process of making carbon nanotubes comprising the steps of: providing a precursor composition comprising at least one metallic compound and at least one organic compound; wherein the organic compound is selected from the group consisting of an ethynyl compound, a metal-ethynyl complex, and combinations thereof; wherein the precursor composition is a liquid or solid at room temperature; and heating the precursor composition under conditions effective to produce carbon nanotubes. A carbon nanotube composition comprising carbon nanotubes and a metal component selected from the group consisting of metal nanoparticles and elemental metal; wherein the carbon nanotube composition is rigid.

    摘要翻译: 制备碳纳米管的方法包括以下步骤:提供包含至少一种金属化合物和至少一种有机化合物的前体组合物; 其中所述有机化合物选自乙炔基化合物,金属 - 乙炔基络合物及其组合; 其中所述前体组合物在室温下为液体或固体; 并在有效产生碳纳米管的条件下加热前体组合物。 一种碳纳米管组合物,其包含碳纳米管和选自金属纳米颗粒和元素金属的金属组分; 其中所述碳纳米管组合物是刚性的。