X.L.Zhao1)
,
T.L.Guo2)
,
M.Ohkohchi3)
,
T.Okazaki3)
,
S.Iijima and Y.Ando3) 1) Japan Science and Technology Corporation
,
Department of Physics
,
Meijo University
,
Shiogamaguchi1 501
,
Tempaku ku
,
Nagoya 468 8502
,
Japan 2) Scientific Research Department
,
Shenyang University
,
Wanghuanan Street21
,
Dadong District
,
Shenyang 110044
,
China 3) Department of Physics
,
Meijo University
,
Shiogamaguchi 1 501
,
Tempaku ku
,
Nagoya 468 8502
,
Japan$
金属学报(英文版)
Multiwalled carbon nanotubes ( MWNTs) were prepared by DCarc dischargein hydrogen gas, and werethermally purified byinfrared radiation in air. The morphology of pristineand purified MWNTs was observed by scanning electron microscope ( SEM) , and the crys tallinestructureand perfection wereinvestigated by high resolution transmission electron mi croscope( HRTEM) and Raman spectrometer. Itcameto the conclusion thatthese MWNTs possessed a high degreeof graphitization and very narrow centralchannel(about1 0 nm indiameter) , giving risetotheappearanceof breathing modesfor MWNTs.
关键词:
multiwalled carbon nanotubes
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