Water-Assisted Highly Efficient Synthesis of Impurity-Free Single-Walled Carbon Nanotubes
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- Kenji Hata
- Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
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- Don N. Futaba
- Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
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- Kohei Mizuno
- Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
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- Tatsunori Namai
- Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
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- Motoo Yumura
- Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
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- Sumio Iijima
- Research Center for Advanced Carbon Materials, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, 305-8565, Japan.
書誌事項
- 公開日
- 2004-11-19
- DOI
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- 10.1126/science.1104962
- 公開者
- American Association for the Advancement of Science (AAAS)
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説明
<jats:p>We demonstrate the efficient chemical vapor deposition synthesis of single-walled carbon nanotubes where the activity and lifetime of the catalysts are enhanced by water. Water-stimulated enhanced catalytic activity results in massive growth of superdense and vertically aligned nanotube forests with heights up to 2.5 millimeters that can be easily separated from the catalysts, providing nanotube material with carbon purity above 99.98%. Moreover, patterned, highly organized intrinsic nanotube structures were successfully fabricated. The water-assisted synthesis method addresses many critical problems that currently plague carbon nanotube synthesis.</jats:p>
収録刊行物
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- Science
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Science 306 (5700), 1362-1364, 2004-11-19
American Association for the Advancement of Science (AAAS)