| Sm修饰的Ni-MgO催化剂制备碳纳米管的研究 |
| Synthesis of Carbon Nanotubes by Catalytic Decomposition of Methane over Sm Modified Ni-MgO Catalysts |
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| 摘要: |
| 关键词: 碳纳米管 Ni-Sm-MgO催化剂 甲烷 催化裂解 |
| 基金项目: |
| Abstract: 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. |
| Keywords: carbon nanotubes Ni-Sm-MgO catalyst methane catalytic decomposition |
| 投稿时间：2005-05-08 修订日期：2005-07-13 |
| 摘要点击次数: 1144 |
| 全文下载次数: 1888 |
| 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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