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    Catalytic growth of single- and double-wall carbon nanotubes from metal particles
    57.
    发明授权
    Catalytic growth of single- and double-wall carbon nanotubes from metal particles 有权
    单壁和双壁碳纳米管从金属颗粒的催化生长

    公开(公告)号：US07125534B1

    公开(公告)日：2006-10-24

    申请号：US10324861

    申请日：2002-12-20

    申请人： Richard E. Smalley ,  Jason H. Hafner ,  Daniel T. Colbert ,  Kenneth Smith

    发明人： Richard E. Smalley ,  Jason H. Hafner ,  Daniel T. Colbert ,  Kenneth Smith

    IPC分类号： D01F9/12

    CPC分类号： D01F9/127 ,  B01J23/28 ,  B01J23/881 ,  B01J35/0013 ,  B01J35/023 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  C01B2202/04 ,  Y10S977/75 ,  Y10S977/752 ,  Y10S977/843

    摘要： Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, there is no termination of nanotube growth, and production appears to be limited only by the diffusion of reactant gas through the product nanotube mat that covers the catalyst. The present invention concerns a catalyst-substrate system which promotes the growth of nanotubes that are predominantly single-walled tubes in a specific size range, rather than the large irregular-sized multi-walled carbon fibrils that are known to grow from supported catalysts. With development of the supported catalyst system to provide an effective means for production of single-wall nanotubes, and further development of the catalyst geometry to overcome the diffusion limitation, the present invention will allow bulk catalytic production of predominantly single-wall carbon nanotubes from metal catalysts located on a catalyst supporting surface.

    摘要翻译： 单壁碳纳米管已经通过一氧化碳和乙烯的催化分解在已知生产较大的多壁纳米管的负载金属催化剂上合成。 在某些条件下，不存在纳米管生长的终止，并且生产似乎仅受到反应气体通过覆盖催化剂的产物纳米管垫的扩散的限制。 本发明涉及促进主要是特定尺寸范围内的单壁管的纳米管生长的催化剂 - 底物系统，而不是已知从负载的催化剂生长的大的不规则尺寸的多壁碳原纤维。 通过开发负载型催化剂体系以提供生产单壁纳米管的有效手段，以及催化剂几何形状的进一步发展以克服扩散限制，本发明将允许主要从金属制得单壁碳纳米管 位于催化剂载体表面上的催化剂。