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

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

Abstract

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

CLC Number:

O643

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

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