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首页> 外文期刊>Physica status solidi, B. Basic research >Molecular Dynamics Simulation of Carbon Structures Inside Small Diameter Carbon Nanotubes
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Molecular Dynamics Simulation of Carbon Structures Inside Small Diameter Carbon Nanotubes

机译:小直径碳纳米管内碳结构的分子动力学模拟

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>Motivated by recent experimental results of hydrocarbon formation in small diameter carbon nanotubes filled with ferrocene molecules, we present molecular dynamics simulations with a DFT‐adjusted tight‐binding method. We increase the number of carbon atoms from 60 to 150 by inserting carbon pentagon rings into a (14,0) nanotube. We find that the structures formed during the simulation depend on the temperature as well as on the density of the carbon atoms. At lower temperatures we obtain graphene ribbons, and at higher temperatures fullerenes or nanotubes are formed. For large enough density of the carbon atoms, the formation of nanotube like structure is preferred at both low and high temperatures.
机译: >通过最近含有二茂铁分子的小直径碳纳米管中烃地层的实验结果,我们用DFT调节的紧密结合方法呈现分子动力学模拟。 通过将碳五边形环插入(14,0)纳米管中,我们通过将碳五边形环增加至150的碳原子数。 我们发现在模拟期间形成的结构取决于温度以及碳原子的密度。 在较低温度下,我们获得石墨烯丝带,并且在较高的温度下形成富勒烯或纳米管。 对于足够的碳原子密度,在低温和高温下,优选纳米管结构的形成。

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