| 低温催化裂解烷烃法制备碳纳米管 |
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| 引用本文： | 陈萍,翟和生.低温催化裂解烷烃法制备碳纳米管[J].厦门大学学报(自然科学版),1996,35(1):61-66. |
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| 作者姓名： | 陈萍 翟和生 |
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| 基金项目： | 国家“攀登”和自然科学基金 |
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| 摘 要： | 实验发现，甲烷可在较低温度（７２３Ｋ）下，在一种Ｎｉ催化剂上分解生成碳纳米管．透射电镜测试结果显示，通过此法制得的碳纤维几乎都具有管状结构．碳纳米管的外径，管长及产率明显地受催化剂的结构、性能，反应温度和原料气流速所支配．将所制得的产物浸泡在稀硝酸溶液中，溶去催化剂颗粒，经水洗，并于４７３Ｋ温度下烘干，可达到将碳纳米管产物与催化剂分离、纯化的目的．
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| 关 键 词： | 碳纳米管，Ni催化剂，催化裂解，甲烷 |
Preparation of Carbon nanotube by Catalytic Pyrolysis of Methane at Lower Temperatu |
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| Chen Ping, Zhang Hongbin, Lin Guodong, Tsai Khirui, Zai Heshen.Preparation of Carbon nanotube by Catalytic Pyrolysis of Methane at Lower Temperatu[J].Journal of Xiamen University(Natural Science),1996,35(1):61-66. |
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| Authors: | Chen Ping Zhang Hongbin Lin Guodong Tsai Khirui Zai Heshen |
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| Abstract: | A new way for preparation of carbon nanotube by catalytic pyrolysis of methane on a Ni-catalyst at temperature of 723K is reported. TEM observation revealed that almost all carbon fibers formed by this method under the reaction conditions used were in the form of tubular structure. The results showed that the outer-diameter and the length of the carbon nanotube as well as the productivity were strongly governed by the the structure-performance of the catalyst used, reaction temperature and feed gas flow-rate. The separation and purification of the carbon nanotube from the catalyst particles can be carried out by washing with aqueous solution of nitric acid followed by drying at 473 K. |
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| Keywords: | Carbon nanotube Methane Catalytic pyrolysis Ni-catalyst |
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