董闯

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:法国洛林国立综合理工学院

学位:博士

所在单位:材料科学与工程学院

电子邮箱:dong@dlut.edu.cn

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Preparation of diamond nanocrystals from catalysed carbon black in a high magnetic field

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论文类型:期刊论文

发表时间:2003-11-26

发表刊物:JOURNAL OF PHYSICS-CONDENSED MATTER

收录刊物:Scopus、SCIE、EI

卷号:15

期号:46

页面范围:8049-8054

ISSN号:0953-8984

摘要:Under a static high magnetic field of 10 T, diamond-like carbon (DLC) nanocrystals and graphite-coated n-diamond nanoparticles have been synthesized after a pyrogenation of carbon black and a nanometre-sized iron catalyst at atmospheric pressure and a temperature of 1100degreesC. The product is analysed by x-ray diffraction, Raman spectroscopy, transmission electron microscopy and electron-probe microanalysis. The average size of the DLC nanopowders is about 20 nm, and that of the graphite-coated n-diamond particles is about 100 nm. The yield of diamond is as high as 30%.