期刊
JOURNAL OF PHYSICS-CONDENSED MATTER
卷 17, 期 48, 页码 L513-L519出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/17/48/L01
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The phase composition and morphology of black powder samples synthesized by pyrogenation of carbon nanotubes and colloidal Fe(OH)(3) were investigated using x-ray diffraction (XRD) and transmission electron microscopy. A new kind allotrope of carbon, 'new diamond' (n-diamond), was obtained in the final black powder when the treatment temperature was higher than 1000 degrees C. As the treatment temperature reached 1400 degrees C, the peak intensity of the n-diamond achieved its maximal value and the estimated yield rate was about 20%. The average size of the n-diamond nanometric particles was around 20 nm. Using the least squares refinement method and XRD pattern simulation technology, the crystal structure of n-diamond was studied.
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