Growth mechanism and Raman spectroscopic study of "interlinked-cone" shaped CNx nanotubes

被引：11

作者：

Ding, P

Liang, EJ ^{[1
]}

Zhang, HR

Liu, YZ

Liu, H

Guo, XY

Du, ZL

机构：

[1] Zhengzhou Univ, Sch Phys Sci & Engn, Zhengzhou 450052, Peoples R China

[2] Henan Med Univ, Lab Special Funct Mat, Kaifen 475001, Peoples R China

来源：

ACTA PHYSICA SINICA | 2003年 / 52卷 / 01期

关键词：

CNx nanotubes; growth mechanism; TEM; Raman spectroscopy;

D O I：

10.7498/aps.52.237

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

CNx nanotubes have been generated by thermal decomposition of ferrocene/xylene over cobalt powder at 780degreesC-940degreesC in an atmosphere of N-2,N- H-2 and NH3 released from NH4Cl pyrolyzing at 300degreesC. The high-resolution transmission electron microscope (HRTEM) images show that the tubes consist of unusual "interlinked-cone". The catalytic growth mechanism of CNx nanotubes is discussed based on the formation energy of different structures. Raman spectroscopic studies show that the I-D/I-G ratio represents the crystallinity of the CNx nanotubes. The shift of the Raman band to higher frequencies confirms the nitrogen incorporation.

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收藏

页码：237 / 241

页数：5

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