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Catalytic growth of single-walled nanotubes by laser vaporization
[摘要] 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 number of parameters were varied to achieve the highest yield. 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.
[发布日期]  [发布机构] Rice University
[效力级别] physics [学科分类] 
[关键词]  [时效性] 
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