Synthesis of body-centered cubic carbon nanocrystals
Synthesis of body-centered cubic carbon nanocrystals
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DOI：
10.1021/cg7006777
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发表时间：
2008-02-01
影响因子：
3.8
通讯作者：
Yang, G. W.
中科院分区：
文献类型：
--
作者：
Liu, P.;Cui, H.;Yang, G. W.
采用脉冲激光诱导液固界面反应（PLIR）合成了一种体心立方（bcc）结构的碳纳米晶。采用扫描电子显微镜、拉曼光谱、透射电子显微镜和能量色散X射线光谱、选区电子衍射和高分辨率分析来表征合成纳米晶体的形貌、组成和结构。实验分析表明，合成的纳米晶体是具有蜜蜂结构的单晶，即所谓的C-8，这是约翰斯顿和霍夫曼理论上预测的。具有蜜蜂结构的碳在机械工程和电子学中具有潜在的应用，因为它是超密度和超硬的。利用红外光谱研究了蜜蜂碳纳米晶的合成机理。
A kind of carbon nanocrystals with body-centered cubic (bcc) structure has been synthesized by using a pulsed-laser induced liquid-solid interface reaction (PLIIR). Scanning electron microscopy, Raman spectra, transmission electron microscopy with energy dispersive X-ray spectrometry, selected area electronic diffraction, and high-resolution analysis are employed to characterize the morphology, composition, and structure of the synthesized nanocrystals. The experimental analyses show that the synthesized nanocrystals are single crystals with a bee structure, the so-called C-8, which was theoretically predicted by Johnston and Hoffmann. Carbon with a bee structure has potential applications in mechanical engineering and electronics, because it is superdense and superhard. The synthesis mechanisms of bee carbon nanocrystals by PLIIR are studied.