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Effect of Mo in Co-Mo/MgO catalysts on the synthesis yield and structure of carbon nanotubes
http://hdl.handle.net/10069/22085
http://hdl.handle.net/10069/2208501e18845-a0f9-483b-8c05-78d5c09ae812
名前 / ファイル | ライセンス | アクション |
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JCS117_654.pdf (1.1 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2009-08-24 | |||||
タイトル | ||||||
タイトル | Effect of Mo in Co-Mo/MgO catalysts on the synthesis yield and structure of carbon nanotubes | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Carbon nanotubes | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CVD | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Catalyst | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Co-Mo/MgO | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Baba, Masataka
× Baba, Masataka× Sano, Hideaki× Zheng, Guo-Bin× Uchiyama, Yasuo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Carbon nanotubes (CNTs) were synthesized at 650-770°C using Co/MgO and Co-Mo/MgO as catalysts and ethylene as carbon source. The dependence of the carbon yield on Mo amount in catalyst, synthesis temperature and time were investigated, and the structures of CNTs were characterized using FESEM, TEM, and Raman spectroscopy. It was found that CNTs with "bamboo-like" structure were synthesized using Co-Mo/MgO catalysts, in contrast to typical multi-walled carbon nanotubes with hollow inner tube obtained from Co/MgO catalyst. Addition of 5-10% Mo in catalysts resulted in the highest carbon yield, e.g. 5500% for 60 min synthesis, which is about 20 times higher than that of Co/MgO. The addition of Mo also extended the lifespan of catalyst for the growth of CNTs. TEM observation showed that the growth of CNTs was in a root-growth mode. The structure of CNTs obtained from Co-Mo/MgO catalysts was explained based on the growth mechanism of CNTs. | |||||
書誌情報 |
Journal of the Ceramic Society of Japan 巻 117, 号 1365, p. 654-658, 発行日 2009-05 |
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出版者 | ||||||
出版者 | 日本セラミックス協会 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18820743 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1348-6535 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.2109/jcersj2.117.654 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Journal of the Ceramic Society of Japan, 117(1365), pp.654-658; 2009 |