Low Temperature Large Scale CVD Synthesis of Nano Onion-Like Fullerenes

Lei Shan Chen; Cun Jing Wang

doi:10.4028/www.scientific.net/AMR.490-495.3211

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 490-495Low Temperature Large Scale CVD Synthesis of Nano...

Low Temperature Large Scale CVD Synthesis of Nano Onion-Like Fullerenes

Abstract:

Synthesis reactions were carried out by chemical vapor deposition using iron catalyst supported on aluminum hydroxide at 400 °C and 420 °C, in the presence of argon as carrier gas and acetylene as carbon source. The aluminum hydroxide support was separated by refluxing the samples in 40% NaOH solution for 2 h and 36% HCl solution for 24 h, respectively. The samples were characterized by field-emission scanning electron microscopy, energy dispersive spectroscopy, high-resolution transmission electron microscopy and X-ray diffraction. The results show that carbon nanotubes were the main products at 420 °C, while large scale high purity nano onion-like fullerenes encapsulating Fe3C, with almost uniform sizes ranging from 10-50 nm, were obtained at the low temperature of 400 °C.

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Periodical:

Advanced Materials Research (Volumes 490-495)

Pages:

3211-3214

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.490-495.3211

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Online since:

March 2012

Authors:

Lei Shan Chen, Cun Jing Wang

Keywords:

Aluminum Hydroxide, Chemical Vapor Deposition (CVD), Irion, Onion-Like Fullerenes

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