Aerosol Catalyst Particles for Substrate CVD Synthesis of Single-Walled Carbon Nanotubes

✍ Scribed by P. Queipo; A. G. Nasibulin; H. Jiang; D. Gonzalez; E. I. Kauppinen

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 686 KB
• Volume: 12
• Category: Article
• ISSN: 0948-1907
• DOI: 10.1002/cvde.200506446

✦ Synopsis

Abstract

Individual single‐walled carbon nanotubes (SWCNTs) were grown by a CVD method on thin SiO~2~ films using iron and carbon monoxide as the catalyst material and the carbon source, respectively. Catalyst particles were produced via physical vapor deposition (PVD) as an aerosol using a hot‐wire particle generator and then deposited by two different approaches. Particles collected onto the substrates by diffusion inside the reactor led to the production of large diameter SWCNTs (∼3–6 nm) with lengths up to 30 μm. An outside deposition, via electrostatic precipitator, resulted in the synthesis of longer SWCNTs (≥ 50 μm) with smaller diameters (< 2 nm).