One-Step Liquid-Phase Synthesis of Carbon Nanotubes: Effects of Substrate Materials on Morphology of Carbon Nanotubes

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概要

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• Effects of substrate materials and shapes have been investigated in the one-step liquid-phase (OS-LP) synthesis of carbon nanotubes (CNTs). Similar highly aligned multi-walled CNT (MWCNT) arrays (HACNTAs) with a height (h_{\text{a}}) of {\sim}30 μm were synthesized on the substrates of commercially available stainless steel and Inconel® alloy by a resistance heating method in methanol containing cobaltocene, whereas aligned MWCNT arrays (h_{\text{a}}\approx 10 μm) with slightly poor alignment were formed on the titanium substrate, compared with those of the former two. On the other hand, very short, non-aligned MWCNTs with a length of {\sim}1 μm were deposited on a silicon substrate. The different morphologies depending on the substrate materials are related with interaction between the pyrolytically-generated Co atoms and the surface oxide layers of the substrates. In addition, we have for the first time demonstrated that the OS-LP synthesis is suitable for CNT-coating onto intricately-shaped substrates like stainless steel mesh.

• 2012-06-25

著者

• Kuwano Jun

  Graduate School of Chemical Sciences and Technology, Tokyo University of Science, 12-1 Ichigayafunagawara-machi, Shinjuku, Tokyo 162-0826, Japan

• Kuwano Jun

  Graduate School of Chemical Sciences and Technology, Tokyo University of Science, Shinjuku, Tokyo 162-0826, Japan

• Yamagiwa Kiyofumi

  Graduate School of Chemical Sciences and Technology, Tokyo University of Science, Shinjuku, Tokyo 162-0826, Japan

• Ayato Yusuke

  Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Shinjuku, Tokyo 162-0826, Japan

• Yamagiwa Kiyofumi

  Graduate School of Chemical Sciences and Technology, Tokyo University of Science, 12-1 Ichigayafunagawara-machi, Shinjuku, Tokyo 162-0826, Japan

関連論文

• One-Step Liquid-Phase Synthesis of Carbon Nanotubes with Catalyst Precursors of Organometallic Complexes
• One-Step Liquid-Phase Synthesis of Carbon Nanotubes: Effects of Substrate Materials on Morphology of Carbon Nanotubes

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