以Er/Ni为催化剂合成碳纳米管及其生长机制以Er/Ni为催化剂合成碳纳米管及其生长机制

以Er/Ni为催化剂合成碳纳米管及其生长机制以Er/Ni为催化剂合成碳纳米管及其生长机制

董凤霞¹, 周秀清¹, 姚明光², 刘冰冰², 邹永刚², 王鹏², 王霖², 于世丹², 邹广田²

1. 吉林大学测试科学实验中心, 长春 130021; 2. 吉林大学超硬材料国家重点实验室, 长春 130012

收稿日期:2006-09-22 修回日期:1900-01-01 出版日期:2007-07-26 发布日期:2007-07-26
通讯作者: 刘冰冰

Synthesis and Growth Mechanism of SWNTswith Er/Ni as Catalyst

DONG Feng xia¹, ZHOU Xiu qing¹, YAO Ming guang², LIU Bing bing², ZOU Yong gang², WANG Peng², WANG Lin², YU Shi dan², ZOU Guang tian²

1. Test Science Experiment Center, Jilin University, Changchun 130021, China; 2. State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China

Received:2006-09-22 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
Contact: LIU Bing bing

摘要/Abstract

摘要： 以Er/Ni为催化剂采用直流电弧放电法合成单壁碳纳米管(SWNTs), 并用扫描电子显微镜、透射电子显微镜、拉曼光谱及X射线衍射对电弧放电后的产物进行表征. 结果表明, 以Er/Ni为催化剂与Y/Ni和Ho/Ni为催化剂合成碳纳米管的直径分布相近, 其直径分布为1.35~1.65 nm, 以1.5 nm为直径的碳纳米管占多数. 对阴极沉积物的X射线衍射分析可知, 稀土元素Er在电弧放电过程中形成稀土碳化物是合成SWNTs产率高的重要因素. 

关键词: 碳纳米管, 金属催化剂, 拉曼光谱

Abstract: Single wall carbon nanotubes (SWNTs) were synthesized in high yield by means of DC arc dischargewith Er/Ni as catalyst. The yielded products, including web-like SWNTs samples and cathode deposit, were characterized with SEM, TEM, Raman spectro scopy and X-ray diffraction. The results indicate that the diameter distribution of the synthesized SWNTs with Er/Ni as catalyst is in a range of 1.35 to 1.65 nmand the nanotube with a diameter of 1.5nm is dominant in the samples, which is similar to that of the diameter distribution of SWNTs synthesized with Y/Ni and Ho/Ni as catalysts. The X-ray diffraction analysis of the cathode deposit indicates that the Er-carbide has formed in the cathode deposit and it is a very important factor for the high-yield synthesis of SWNTs.

Key words: carbon nanotube, metallic catalyst, Raman spectroscopy

中图分类号:

O643

董凤霞, 周秀清, 姚明光, 刘冰冰, 邹永刚, 王鹏, 王霖, 于世丹, 邹广田. 以Er/Ni为催化剂合成碳纳米管及其生长机制以Er/Ni为催化剂合成碳纳米管及其生长机制[J]. J4, 2007, 45(04): 665-668.

DONG Feng xia, ZHOU Xiu qing, YAO Ming guang, LIU Bing bing, ZOU Yong gang, WANG Peng, WANG Lin, YU Shi dan, ZOU Guang tian. Synthesis and Growth Mechanism of SWNTswith Er/Ni as Catalyst[J]. J4, 2007, 45(04): 665-668.

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