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Carbon spheres synthesized by ultrasonic treatment

被引：45
作者：
Wang, ZX
Yu, LP [1 ]
Zhang, W
Zhu, ZY
He, GW
Chen, Y
Hu, G
机构：
[1] Chinese Acad Sci, Shanghai Inst Nucl Res, Shanghai 201800, Peoples R China
[2] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
来源：
PHYSICS LETTERS A | 2003年 / 307卷 / 04期
关键词：
ultrasonic treatment; carbon nanospheres; TEM;
D O I：
10.1016/S0375-9601(02)01717-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Onion-like carbon nanospheres have been synthesized through ultrasound treatment on highly oriented pyrolytic graphite (HOPG) material in deion water. High resolution transmission electron microscope (HRTEM) and electron diffraction (ED) analyses show that these nanospheres are composed of disordered lattice lines of graphene sheets and the size of them ranges from about 10 nm to 200 nm. In addition, to explain the growth mechanism of carbon nanospberes, one possible two-stage model was proposed of nucleus formation and "rolling snowball" growth of carbon nanospheres. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：249 / 252
页数：4
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