Copper Catalyzing Growth of Single-Walled Carbon Nanotubes on Substrates

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• 作者：Weiwei Zhou ; Zuoyan Han ; Jinyong Wang ; Yan Zhang ; Zhong Jin ; Xiao Sun ; Yawen Zhang ; Chunhua Yan ; Yan Li
• 刊名：Nano Letters
• 出版年：2006
• 出版时间：December 2006
• 年：2006
• 卷：6
• 期：12
• 页码：2987 - 2990
• 全文大小：410K
• 年卷期：v.6,no.12(December 2006)
• ISSN：1530-6992

文摘

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