Nano Archive

Copper catalyzing growth of single-walled carbon nanotubes on substrates

Zhou, Weiwei and Han, Zuoyan and Wang, Jinyong and Zhang, Yan and Jin, Zhong and Sun, Xiao and Zhang, Yawen and Yan, Chunhua and Li, Yan (2006) Copper catalyzing growth of single-walled carbon nanotubes on substrates. NANO LETTERS, 6 (12). pp. 2987-2990.

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Metallic copper, which is normally considered as a contaminant in the growth of single-walled carbon nanotubes (SWNTs), was found to be an efficient catalyst to grow SWNTs under suitable conditions. It showed very high catalytic activity for the growth of both random SWNT networks and horizontally aligned SWNT arrays. Especially, high-quality SWNT arrays were obtained when monodispersed copper nanoparticles were used. The catalytic behavior of copper for the growth of SWNTs was discussed. The weaker interaction between the copper and silica surfaces plays an important role in the growth of high-quality horizontally aligned SWNT arrays. This new synthesis process of SWNTs with a non-ferromagnetic catalyst brings more convenience to the study of magnetic properties of SWNTs and gives more insight in structure-controlled synthesis of SWNTs.

Item Type:Article
Subjects:Material Science > Nanofabrication processes and tools
ID Code:1661
Deposited By:Mark Morrison
Deposited On:08 Jan 2009 12:19
Last Modified:08 Jan 2009 12:19

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