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公开(公告)号:US20040186220A1
公开(公告)日:2004-09-23
申请号:US10755490
申请日:2004-01-12
Applicant: William Marsh Rice University
Inventor: Richard E. Smalley , Daniel T. Colbert , Ken A. Smith , Michael O'Connell
IPC: C08L037/00
CPC classification number: C08K9/08 , B82Y10/00 , B82Y30/00 , D01F11/14 , H01C17/0652 , H01L51/0048 , H01L51/0052 , H01Q17/002 , H05K1/0373 , H05K1/162 , Y02E60/364 , Y10S977/745 , Y10S977/746 , Y10S977/748 , Y10S977/75 , Y10S977/783 , Y10T428/2935 , Y10T428/2991 , Y10T428/2998
Abstract: The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properties including applications in antennas, electromagnetic and electro-optic devices, and high-toughness materials. Other compositions of matter and articles of manufacture are disclosed including polymer-coated and polymer wrapped single-wall nanotubes (SWNTs), small ropes of polymer-coated and polymer-wrapped SWNTs and materials comprising same. This composition provides one embodiment of the SWNT conducting-rod composite mentioned above, and also enables creation of high-concentration suspensions of SWNTs and compatibilization of SWNTs with polymeric matrices in composite materials. This solubilization and compatibilization, in turn, enables chemical manipulation of SWNT and production of composite fibers, films, and solids comprising SWNTs.
Abstract translation: 本发明涉及包含分散在电绝缘基质中的纳米级导电棒的SWNT的物质和制品的新组合物。 这些物质组合物具有新颖且有用的电学,机械和化学性质,包括在天线,电磁和电光器件以及高韧性材料中的应用。 公开了其它物质和制品的组合物,包括聚合物涂覆的和聚合物包裹的单壁纳米管(SWNT),聚合物涂覆的和包含聚合物的SWNT的小绳索以及包含它们的材料。 该组合物提供了上述SWNT导电棒复合材料的一个实施方案,并且还能够形成SWNT的高浓度悬浮液,并且在复合材料中使SWNT与聚合物基质相容化。 这种增溶和相容反过来又能使SWNT的化学操作和复合纤维,薄膜和包含SWNT的固体的生产。
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公开(公告)号:US20040223901A1
公开(公告)日:2004-11-11
申请号:US10730630
申请日:2003-12-08
Applicant: William Marsh Rice University
Inventor: Richard E. Smalley , Ken A. Smith , Daniel T. Colbert , Pavel Nikolaev , Michael J. Bronikowski , Robert K. Bradley , Frank Rohmund
IPC: D01F009/12
CPC classification number: B01J4/002 , B01J3/04 , B01J3/042 , B01J19/121 , B01J19/26 , B01J2219/0875 , B82Y30/00 , B82Y40/00 , C01B32/162 , C01B2202/02 , C01B2202/36 , D01F9/1278 , Y10S977/75 , Y10S977/751 , Y10S977/843 , Y10S977/845 , Y10S977/951 , Y10T428/30
Abstract: The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000null C.) and a catalyst precursor gas (e.g., Fe(CO)5) in CO that is kept below the catalyst precursor decomposition temperature to a mixing zone. In this mixing zone, the catalyst precursor is rapidly heated to a temperature that results in (1) precursor decomposition, (2) formation of active catalyst metal atom clusters of the appropriate size, and (3) favorable growth of SWNTs on the catalyst clusters. Preferably a catalyst cluster nucleation agency is employed to enable rapid reaction of the catalyst precursor gas to form many small, active catalyst particles instead of a few large, inactive ones. Such nucleation agencies can include auxiliary metal precursors that cluster more rapidly than the primary catalyst, or through provision of additional energy inputs (e.g., from a pulsed or CW laser) directed precisely at the region where cluster formation is desired. Under these conditions SWNTs nucleate and grow according to the Boudouard reaction. The SWNTs thus formed may be recovered directly or passed through a growth and annealing zone maintained at an elevated temperature (e.g., 1000null C.) in which tubes may continue to grow and coalesce into ropes.
Abstract translation: 本发明公开了在被保留的CO中提供已被预热(例如,约1000℃)的高压(例如,30个大气压)的CO和催化剂前体气体(例如,Fe(CO)5)的过程。 催化剂前体分解温度低于混合区。 在该混合区中,将催化剂前体快速加热到导致(1)前体分解的温度,(2)形成适当尺寸的活性催化剂金属原子簇,和(3)在催化剂簇上的SWNT的有利生长 。 优选使用催化剂簇成核剂来使催化剂前体气体快速反应以形成许多小的活性催化剂颗粒,而不是几个大的非活性催化剂颗粒。 这样的成核机构可以包括比主要催化剂更快地聚集的辅助金属前体,或者通过提供精确地指向需要簇形成的区域的额外的能量输入(例如来自脉冲或CW激光)。 在这些条件下,SWNT根据Boudouard反应成核并生长。 如此形成的SWNT可以直接回收或通过保持在高温(例如1000℃)的生长和退火区域,其中管可以继续生长并聚结成绳索。
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