Catalytic growth of single-walled manotubes by laser vaporization

Direct laser vaporization of transition-metal/graphite composite rods produced single-walled carbon nanotubes (SWT) in the condensing vapor in a heated flow tube. A much higher yield of nanotubes was found, with little of the amorphous overcoating on those produced by the metal-catalyzed arc-discharge method. A mixture of Co with Ni catalyzed about 50% of all the carbon vaporized to SWT. A model for SWT growth is presented for both the present case and the arc in which the metal particle size is limited due to the concurrent carbon condensation.

[1]  R. Evershed,et al.  Mat Res Soc Symp Proc , 1995 .

[2]  P. Ajayan,et al.  Growth morphologies during cobalt-catalyzed single-shell carbon nanotube synthesis , 1993 .

[3]  R. Smalley,et al.  Solar generation of the fullerenes , 1993 .

[4]  G. Tibbetts.  Growing carbon fibers with a linearly increasing temperature sweep: Experiments and modeling , 1992 .

[5]  Rashed A. Chowdhury.  ACCOUNTS , 1997, Journal of The Royal Naval Medical Service.

[6]  Yahachi Saito,et al.  Carbon nanocapsules encaging metals and carbides , 1993 .

[7]  R. Smalley,et al.  Self-assembly of the fullerenes , 1992 .

[8]  M. S. de Vries,et al.  Cobalt-catalysed growth of carbon nanotubes with single-atomic-layer walls , 1993, Nature.

[9]  Y. Saito,et al.  Extrusion of single-wall carbon nanotubes via formation of small particles condensed near an arc evaporation source , 1995 .

[10]  S. Seraphin,et al.  Single‐walled carbon nanotubes growing radially from YC2particles , 1994 .

[11]  S. Seraphin.  Single‐Walled Tubes and Encapsulation of Nanocrystals into Carbon Clusters , 1995 .

[12]  P. Ajayan,et al.  Improving conditions towards isolating single-shell carbon nanotubes , 1994 .

[13]  S. H. Bauer,et al.  Homogeneous nucleation in metal vapors. 5. A self-consistent kinetic model , 1977 .

[14]  T. Ichihashi,et al.  Single-shell carbon nanotubes of 1-nm diameter , 1993, Nature.

[15]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[16]  S. Bauer,et al.  Homogeneous nucleation in metal vapors. 4. Cluster growth rates from light scattering , 1977 .

[17]  R. Smalley,et al.  Surface reactions of metal clusters. II. Reactivity surveys with D2, N2, and CO , 1985 .

[18]  C. B. Carter,et al.  Growth and Sintering of Fullerene Nanotubes , 1994, Science.