Growth of Highly Dense Brushlike Carbon Nanotubes Using Layered Catalysts and Rapid Heating
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概要
- 論文の詳細を見る
The key technologies to achieve mass production of brushlike multiwalled carbon nanotubes (CNTs) are rapid processing for substrate heating and growing CNTs, and then cooling the substrate. We used chemical vapor deposition at 800 °C with a carbon source gas of acetylene to investigate how substrate heating rate affects CNT growth. The results revealed an effective layered structure of an Fe catalyst for the rapid heating process: an oxidized Fe layer and a metal Fe layer formed on a silicon dioxide layer. The relationship among the given structure of Fe catalysts, the catalyst shape after rapid heating, and the resultant CNTs were investigated.
- 2009-06-25
著者
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Nakayama Yoshikazu
Department Of Electrical Engineering College Of Engineering University Of Osaka
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Hirahara Kaori
Department Of Mechanical Engineering Graduate School Of Engineering Osaka University
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Nagasaka Takeshi
Department Of Gastroenterological Surgery Transplant And Surgical Oncology Okayama University Graduate School Of Medicine Dentistry And Pharmaceutical Sciences
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Nagasaka Takeshi
Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan
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Sakai Toru
Taiyo Nippon Sanso Corp., Toyo Bldg., 1-3-26 Koyama, Shinagawa, Tokyo 142-8558, Japan
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