公开(公告)号：US07052668B2

公开(公告)日：2006-05-30

申请号：US10059874

申请日：2002-01-29

申请人： Richard E. Smalley ,  Robert H. Hauge ,  Peter Athol Willis ,  W. Carter Kittrell

发明人： Richard E. Smalley ,  Robert H. Hauge ,  Peter Athol Willis ,  W. Carter Kittrell

IPC分类号： D01F9/12

CPC分类号： B82Y30/00 ,  B01J3/008 ,  B01J19/26 ,  B01J2219/00085 ,  B01J2219/00094 ,  B01J2219/00108 ,  B01J2219/00121 ,  B82Y15/00 ,  B82Y40/00 ,  C01B32/152 ,  C01B32/162 ,  C01B2202/02 ,  D01F9/127 ,  Y02P20/544

摘要： A gas-phase method for producing high yields of single-wall carbon nanotubes with high purity and homogeneity is disclosed. The method involves using preformed metal catalyst clusters to initiate and grow single-wall carbon nanotubes. In one embodiment, multi-metallic catalyst precursors are used to facilitate the metal catalyst cluster formation. The catalyst clusters are grown to the desired size before mixing with a carbon-containing feedstock at a temperature and pressure sufficient to initiate and form single-wall carbon nanotubes. The method also involves using small fullerenes and preformed sections of single-wall carbon nanotubes, either derivatized or underivatized, as seed molecules for expediting the growth and increasing the yield of single-wall carbon nanotubes. The multi-metallic catalyst precursors and the seed molecules may be introduced into the reactor by means of a supercritical fluid. In addition the seed molecules may be introduced into the reactor via an aerosol or smoke.

公开(公告)号：US06913789B2

公开(公告)日：2005-07-05

申请号：US10059570

申请日：2002-01-29

申请人： Richard E. Smalley ,  Robert H. Hauge ,  Peter Athol Willis ,  W. Carter Kittrell

发明人： Richard E. Smalley ,  Robert H. Hauge ,  Peter Athol Willis ,  W. Carter Kittrell

IPC分类号： B01J3/00 ,  B01J19/26 ,  C01B31/02 ,  D01F9/127 ,  C23C16/26

CPC分类号： B82Y30/00 ,  B01J3/008 ,  B01J19/26 ,  B01J2219/00085 ,  B01J2219/00094 ,  B01J2219/00108 ,  B01J2219/00121 ,  B82Y40/00 ,  C01B32/162 ,  C01B2202/02 ,  D01F9/127 ,  Y02P20/544 ,  Y10S977/843

摘要： A gas-phase method for producing high yields of single-wall carbon nanotubes with high purity and homogeneity is disclosed. The method involves using preformed metal catalyst clusters to initiate and grow single-wall carbon nanotubes. In one embodiment, multi-metallic catalyst precursors are used to facilitate the metal catalyst cluster formation. The catalyst clusters are grown to the desired size before mixing with a carbon-containing feedstock at a temperature and pressure sufficient to initiate and form single-wall carbon nanotubes. The method also involves using small fullerenes and preformed sections of single-wall carbon nanotubes, either derivatized or underivatized, as seed molecules for expediting the growth and increasing the yield of single-wall carbon nanotubes. The multi-metallic catalyst precursors and the seed molecules may be introduced into the reactor by means of a supercritical fluid. In addition the seed molecules may be introduced into the reactor via an aerosol or smoke.

摘要翻译： 公开了一种用于产生高纯度和均匀性的高产率单壁碳纳米管的气相方法。 该方法涉及使用预制金属催化剂簇来引发和生长单壁碳纳米管。 在一个实施方案中，多金属催化剂前体用于促进金属催化剂簇形成。 在与含碳原料混合之前，在足以引发和形成单壁碳纳米管的温度和压力下将催化剂簇生长至所需尺寸。 该方法还涉及使用衍生化或未衍生化的单壁碳纳米管的小富勒烯和预制部分作为种子分子，用于加速生长并提高单壁碳纳米管的产率。 可以通过超临界流体将多金属催化剂前体和种子分子引入反应器。 此外，可以通过气溶胶或烟雾将种子分子引入反应器。