| Sm修饰的Ni-MgO催化剂制备碳纳米管的研究 |
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| 引用本文： | 李克,吕功煊,刘建福.Sm修饰的Ni-MgO催化剂制备碳纳米管的研究[J].无机化学学报,2005,21(10):1571-1575. |
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| 作者姓名： | 李克 吕功煊 刘建福 |
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| 作者单位： | 1. 中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室,兰州,730000
2. 中国科学院研究生院,北京,100049 |
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| 基金项目： | 973计划(No.2003CB214500)资助项目 |
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| 摘 要： | Carbon nanotubes (CNTs) have been synthesized over Ni-MgO and Ni-Sm-MgO catalysts by decomposition of CH4 at 650 ℃. The addition of Sm into Ni-MgO catalyst not only promotes the catalytic activity and lifetime of the catalyst, but also improves the graphitization and heat stability of carbon nanotubes. The yield of CNTs obtained over the Ni-10Sm-MgO catalyst reaches 33 g C·(g Ni)-1, being more than 5 times higher than that of the Ni-MgO catalyst. XRD and TPR results of the catalysts indicate that there is a remarkable interaction of Ni with Sm species, which facilitates the reduction of nickel and restrains the Ni particles from agglomerating.
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| 关 键 词： | 碳纳米管 Ni-Sm-MgO催化剂 甲烷 催化裂解 |
| 文章编号： | 1001-4861(2005)10-1571-05 |
| 收稿时间： | 5/8/2005 12:00:00 AM |
| 修稿时间： | 2005-07-13 |
Synthesis of Carbon Nanotubes by Catalytic Decomposition of Methane over Sm Modified Ni-MgO Catalysts |
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| LI Ke,LU Gong-Xuan and LIU Jian-Fu.Synthesis of Carbon Nanotubes by Catalytic Decomposition of Methane over Sm Modified Ni-MgO Catalysts[J].Chinese Journal of Inorganic Chemistry,2005,21(10):1571-1575. |
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| Authors: | LI Ke LU Gong-Xuan and LIU Jian-Fu |
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| Institution: | State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;Graduate School of the Chinese Academy of Sciences, Beijing 100049,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;Graduate School of the Chinese Academy of Sciences, Beijing 100049 and State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000;Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | |
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| Keywords: | carbon nanotubes Ni-Sm-MgO catalyst methane catalytic decomposition |
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