| Gas and pressure effects on the synthesis of amorphous carbon nanotubes |
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| 作者姓名： | ZHAOTingkai LIUYongning ZHUJiewu |
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| 作者单位： | [1]Xi＇anJiaotongUniversity,Xi＇an710049,China [2]Xi＇anJiaotongUniversity,Xi＇an710049,China |
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| 摘 要： | The effects nf gas. pressure and temperature on the production of amorphous carbon nanotubes were investigated using an are discharging furnace at controlled temperature. Co/Ni alloy powder was used as catalyst. The discharge current was 80 A and voltage was 32 V The optimal parameters were obtained: 600℃ temperature, hydrogen gas and 500 torr pressure. The productivity and purity of amorphous carbon nanotubes are 6.5 gram per hour and 80%, respectively. The diameter of the amorphous carbon nanotubes is about 7—20 nm.
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| 关 键 词： | 无定形碳纳米管 气体 压力 合成工艺 反应条件 |
| 收稿时间： | 15 May 2004 |
Gas and pressure effects on the synthesis of amorphous carbon nanotubes |
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| ZHAOTingkai LIUYongning ZHUJiewu.Gas and pressure effects on the synthesis of amorphous carbon nanotubes[J].Chinese Science Bulletin,2004,49(24):2569-2571. |
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| Authors: | Tingkai?Zhao Email author" target="_blank">Yongning?LiuEmail author Jiewu?Zhu |
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| Institution: | (1) Xi’an Jiaotong University, 710049 Xi’an, China |
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| Abstract: | The effects of gas, pressure and temperature on the production of amorphous carbon nanotubes were investigated using an arc
discharging furnace at controlled temperature. Co/Ni alloy powder was used as catalyst. The discharge current was 80 A and
voltage was 32 V. The optimal parameters were obtained: 600°C temperature, hydrogen gas and 500 torr pressure. The productivity
and purity of amorphous carbon nanotubes are 6.5 gram per hour and 80%, respectively. The diameter of the amorphous carbon
nanotubes is about 7–20 nm. |
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| Keywords: | amorphous carbon nanotubes arc discharge at con- trolled temperature effects of gas and pressure |
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