Synthesis and transformation of linear adamantane assemblies inside carbon nanotubes.
Synthesis and transformation of linear adamantane assemblies inside carbon nanotubes.
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DOI：
10.1021/nn303461q
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发表时间：
2012-09
期刊：
影响因子：
17.1
通讯作者：
Jinying Zhang;Yanquan Feng;H. Ishiwata;Y. Miyata;R. Kitaura;J. Dahl;R. Carlson;H. Shinohara;D. Tománek
中科院分区：
文献类型：
--
作者：
Jinying Zhang;Yanquan Feng;H. Ishiwata;Y. Miyata;R. Kitaura;J. Dahl;R. Carlson;H. Shinohara;D. Tománek
我们报道了线性类金刚石组件在碳纳米管中的组装和热转化。我们的计算和观察表明，这些分子在碳纳米管的狭窄限制空间内进行选择性反应。对包裹在碳纳米管中的金刚烷分子进行真空退火后，我们在1857 cm(-1)处观察到一个尖锐的拉曼特征，我们将其解释为金刚烷在碳纳米管内热转化形成的碳链的伸展模式。然而，在热退火过程中引入纯氢可以抑制碳链的形成，并似乎保持金刚烷的完整。
We report the assembly and thermal transformation of linear diamondoid assemblies inside carbon nanotubes. Our calculations and observations indicate that these molecules undergo selective reactions within the narrow confining space of a carbon nanotube. Upon vacuum annealing of adamantane molecules encapsulated in a carbon nanotube, we observe a sharp Raman feature at 1857 cm(-1), which we interpret as a stretching mode of carbon chains formed by thermal conversion of adamantane inside a carbon nanotube. Introduction of pure hydrogen during thermal annealing, however, suppresses the formation of carbon chains and seems to keep adamantane intact.