中国物理B ›› 1994, Vol. 3 ›› Issue (7): 519-527.doi: 10.1088/1004-423X/3/7/006

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

SYNTHESIS AND STRUCTURE OF CARBON NANOTUBES

解思深, 刘维, 张泽渤, 王刚, 钱生法, 傅春生, 李楠, 郑幼凤, 李超荣   

  1. Institute of Physics, Academia Sinica, beijing 100080, China
  • 收稿日期:1993-05-31 出版日期:1994-07-20 发布日期:1994-07-20
  • 基金资助:
    Project supported by the State Science and Technology Commission of China and the Bureau of Basic Research, Chinese Academy of Sciences.

SYNTHESIS AND STRUCTURE OF CARBON NANOTUBES

XIE SI-SHEN (解思深), LIU WEI (刘维), ZHANG ZE-BO (张泽渤), WANG GANG (王刚), QIAN SHENG-FA (钱生法), FU CHUN-SHENG (傅春生), LI NAN (李楠), ZHENG YOU-FENG (郑幼凤), LI CHAO-RONG (李超荣)   

  1. Institute of Physics, Academia Sinica, beijing 100080, China
  • Received:1993-05-31 Online:1994-07-20 Published:1994-07-20
  • Supported by:
    Project supported by the State Science and Technology Commission of China and the Bureau of Basic Research, Chinese Academy of Sciences.

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摘要： The distribution, morphology and structure of carbon nanotubes and buckyonions produced from an arc discharge were investigated by means of scanning electron mi-croscopy and high-resolution transmission electron microscopy, The nanotubes and nanoonions were found to be located mainly near the porous region of the core in the deposited rods and the transition region between the growth ring-shaped graphite sheets. The tube bundles grew freely from carbon particles. Apart from the straight-line tubes, curved and bent tubes were also found. Studies on the structure of them showed that the carbon atomic sheets in the nanotubes displayed a stepped bending. Transverse sectional study predicted a helical structure of the carbon atomic sheets. In addition, the relationship between the number of pentagonal rings and cone angle at the tips of the tubes, as well as the mechanism of the formation of the steplike structure, were discussed.

Abstract: The distribution, morphology and structure of carbon nanotubes and buckyonions produced from an arc discharge were investigated by means of scanning electron mi-croscopy and high-resolution transmission electron microscopy, The nanotubes and nanoonions were found to be located mainly near the porous region of the core in the deposited rods and the transition region between the growth ring-shaped graphite sheets. The tube bundles grew freely from carbon particles. Apart from the straight-line tubes, curved and bent tubes were also found. Studies on the structure of them showed that the carbon atomic sheets in the nanotubes displayed a stepped bending. Transverse sectional study predicted a helical structure of the carbon atomic sheets. In addition, the relationship between the number of pentagonal rings and cone angle at the tips of the tubes, as well as the mechanism of the formation of the steplike structure, were discussed.

中图分类号:  (Nanotubes)

  • 61.46.Fg
81.07.De (Nanotubes) 68.37.Hk (Scanning electron microscopy (SEM) (including EBIC)) 68.37.Lp (Transmission electron microscopy (TEM))