X-ray diffraction of multiwalled carbon nanotube under high pressure: Structural durability on static compression
X-ray diffraction of multiwalled carbon nanotube under high pressure: Structural durability on static compression
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DOI：
10.1016/j.carbon.2004.10.011
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发表时间：
2005
期刊：
影响因子：
10.9
通讯作者：
H. Yusa;T. Watanuki
中科院分区：
文献类型：
--
作者：
H. Yusa;T. Watanuki
采用室温x射线原位粉末衍射法研究了多壁碳纳米管在静水压和非静水压下的结构耐久性。尽管纳米管的可压缩性与石墨相似，但在高达52GPa的压力下，石墨中没有观察到导致六边形金刚石的sp3杂化等层间相互作用。这一结果可能归因于嵌套结构，这使得碳原子层间的堆叠呈现不规则排列。尽管有非流体静力压缩的历史，但电镜观察显示结构仍然是巢状管状的。这种可逆性表明，纳米管在极端压力下的非流体静压下具有很强的耐久性。
The structural durability of multiwalled carbon nanotubes under hydrostatic and non-hydrostatic compression was examined by in situ X-ray powder diffraction at room temperature. No interlayer interaction such as sp3hybridization that could lead to hexagonal diamond in graphite was observed under compression up to 52GPa, even though the nanotubes were similar in compressibility to graphite. This result could be attributed to the nested structure, which makes the interlayer stacking of carbon atoms take on an irregular arrangement. Despite the history of non-hydrostatic compression, electron microscopic observation revealed that the structure remained nested tubular. This reversibility suggests the nanotubes have strong durability on non-hydrostatic compression under extreme pressures.