Method and device for preparing carbon nanotube and carbon nanotube prepared thereby

US11608268B2 · kind B2 · utility

Assignee

• JIANGXI YUEAN ADVANCED MATERIALS CO., LTD. · CN

Inventors

• Shangkui Li · Qiaonanxiang, CN
• Bing Wang · Xiamen, CN
• Bo Li · San Jose, US
• Xianxin Li · San Jose, US
• Haiping Zou · Qiaonanxiang, CN
• Minfeng Zhu · Qiaonanxiang, CN

Key dates

• Filing date: Nov 8, 2018
• Grant date: Mar 21, 2023
• Expiry date: Dec 3, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B32/164
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method and a device for preparing a carbon nanotube and a prepared carbon nanotube. The method includes: adding iron pentcarbonyl and nickel tetracarbonyl into a multi-stage series fluidized bed and performing decomposition to obtain a catalyst, and discharging the carbon monoxide generated; adding a carbon source and injecting an inert gas into the series fluidized bed for reaction under heating at 600-800° C. for 40-90 min, the ratio of the mass of carbon in the carbon source to the mass of the catalyst being 5-7:3-5. Further provided are a device for preparing a carbon nanotube according to the above method and a carbon nanotube prepared by the above method.