| Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane |
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| 作者姓名： | Kong Bee Hong Aidawati Azlin Binti Ismail Mohamed Ezzaham Bin Mohd Mahayuddin Abdul Rahman Mohamed Sharif Hussein Sharif Zein |
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| 作者单位： | School of Chemical Engineering Engineering Campus，Universiti Sains Malaysia，14300 Nibong Tebal，Seberang Perai Selatan，Pulau Pinang，Malaysia，School of Chemical Engineering，Engineering Campus，Universiti Sains Malaysia，14300 Nibong Tebal，Seberang Perai Selatan，Pulau Pinang，Malaysia，School of Chemical Engineering，Engineering Campus，Universiti Sains Malaysia，14300 Nibong Tebal，Seberang Perai Selatan，Pulau Pinang，Malaysia，School of Chemical Engineering，Engineering Campus，Universiti Sains Malaysia，14300 Nibong Tebal，Seberang Perai Selatan，Pulau Pinang，Malaysia，School of Chemical Engineering，Engineering Campus，Universiti Sains Malaysia，14300 Nibong Tebal，Seberang Perai Selatan，Pulau Pinang，Malaysia |
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| 基金项目： | Acknowledgements The authors acknowledge the financial support provided by Short Term Grant USM （Project：A/C No：6035146）and Academy of Sciences Malaysia under Scientific Advancement.Grant Allocation（SAGA）（Project：A/C No.6053001）. |
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| 摘 要： | Acid-based purification process of multi-walled carbon nanotubes (MWNTs) produced via catalytic decomposition of methane with NiO/TiO2 as a catalyst is described. By combining the oxidation in air and the acid refluxes, the impurities, such as amorphous carbon, carbon nanoparticles, and the NiO/TiO2 catalyst, are eliminated. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images confirm the removal of the impurities. The percentage of the carbon nanotubes purity was analyzed using thermal gravimetric analysis (TGA). Using this process, 99.9 wt% purity of MWNTs was obtained.
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| 关 键 词： | 多壁碳纳米管 纯化 氧化 甲烷 催化裂解 |
| 收稿时间： | 2006-10-18 |
Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane |
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| Kong Bee Hong Aidawati Azlin Binti Ismail Mohamed Ezzaham Bin Mohd Mahayuddin Abdul Rahman Mohamed Sharif Hussein Sharif Zein.Production of High Purity Multi-Walled Carbon Nanotubes from Catalytic Decomposition of Methane[J].Journal of Natural Gas Chemistry,2006,15(4):266-270. |
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| Authors: | Kong Bee Hong Aidawati Azlin Binti Ismail Mohamed Ezzaham Bin Mohd Mahayuddin Abdul Rahman Mohamed Sharif Hussein Sharif Zein |
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| Institution: | aSchool of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Seberang Perai Selatan, Pulau Pinang, Malaysia |
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| Abstract: | Acid-based purification process of multi-walled carbon nanotubes (MWNTs) produced via catalytic decomposition of methane with NiO/TiO2 as a catalyst is described. By combining the oxidation in air and the acid refluxes, the impurities, such as amorphous carbon, carbon nanoparticles, and the NiO/TiO2 catalyst, are eliminated. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images confirm the removal of the impurities. The percentage of the carbon nanotubes purity was analyzed using thermal gravimetric analysis (TGA). Using this process, 99.9 wt% purity of MWNTs was obtained. |
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| Keywords: | multi-walled carbon nanotubes purification acid refluxes oxidation methane decomposition |
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