| 摘要 |
The growth of carbon nanotubes such as single-walled carbon nanotubes (SWNTs) is achieved using a catalyst and carbon feedstock gas, with the catalyst being delivered using an approach for relatively clean delivery and placement thereof. In one example embodiment, nanoparticles are deposited from solution onto a substrate, and the substrate is subsequently heated to form catalyst material from the nanoparticles. A carbon nanotube is then grown from the catalyst material, using the catalyst material to catalyze a reaction that is used to grow the carbon nanotube. In one implementation, hydroxylamine is used in the deposition of nanoparticles of a catalyst precursor material from aqueous iron-containing solutions onto an SiO<SUB>2 </SUB>substrate. The nanoparticles are heated and used to form catalyst material on the SiO<SUB>2 </SUB>substrate, which is used in the subsequent growth of carbon nanotubes via the introduction of carbon-containing gas to the nanoparticles.
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