Reassembly of single-walled carbon nanotubes into hybrid multilayered nanostructures inside nanotube extruders

Yufeng Guo; Wanlin Guo

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Reassembly of single-walled carbon nanotubes into hybrid multilayered nanostructures inside nanotube extruders

机译：将单壁碳纳米管重新组装成纳米管挤出机内的杂化多层纳米结构

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High-pressure induced structural reassembly of single-walled carbon nanotubes (SWNTs) inside carbon nanotube extruders is investigated by reactive molecular dynamics simulations. It is found that the encapsulated SWNTs undergo a series of structural transformations depending on tube diameters with increasing internal pressure, and finally reassemble into hybrid sp~2-sp~3 cross-linked multilayered tubular nanostructures inside the nanotube extruders. Density-functional calculations show that strong compression causes a semiconducting-to-metallic transition in the encapsulated tubes. The metallic properties of the formed nanostructures are mainly attributed to the shortening of carbon bonds and strong interlayer correlation.

机译：通过反应分子动力学模拟研究了碳纳米管挤出机内单壁碳纳米管（SWNT）的高压诱导结构重组。发现封装的单壁碳纳米管会随着管直径的增加而经历一系列的结构转变，并随着内部压力的增加而最终在纳米管挤出机中重新组装成杂化的sp〜2-sp〜3交联的多层管状纳米结构。密度泛函计算表明，强压缩会导致包封管中的半导体到金属的转变。形成的纳米结构的金属性能主要归因于碳键的缩短和强烈的层间相关性。

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来源
《Physical review》 |2007年第4期|045404.1-045404.6|共6页
作者
Yufeng Guo; Wanlin Guo;
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作者单位

Institute of Nano Science, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

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原文格式 PDF
正文语种 eng
中图分类固体物理学;
关键词
structural transitions in nanoscale materials; electronic structure of nanoscale materials: clusters; nanoparticles; nanotubes; and nanocrystals; high-pressure and shock wave effects in solids and liquids;

机译：纳米级材料的结构转变;纳米级材料的电子结构：簇;纳米粒子纳米管和纳米晶体;固体和液体中的高压和冲击波效应;

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1. Growth Mechanism of Single-Walled Carbon Nanotube from Catalytic Reaction Inside Carbon Nanotube Template [J] . Izu Y, Shiomi J, Takagi Y, ACS nano . 2010,第8期

机译：碳纳米管模板内部催化反应的单壁碳纳米管生长机理
2. Mechanics of single-walled carbon nanotubes inside open single-walled carbon nanocones [J] . R. Ansari, M. Hosseinzadeh Journal of Mechanical Science and Technology . 2013,第11期

机译：开放式单壁碳纳米锥内的单壁碳纳米管的力学
3. Mechanics of single-walled carbon nanotubes inside open single-walled carbon nanocones [J] . R. Ansari, M. Hosseinzadeh Journal of Mechanical Science and Technology . 2013,第11期

机译：开放式单壁碳纳米锥内的单壁碳纳米管的力学
4. Electric properties change of single-walled carbon nanotube with amphoteric doping by encapsulation of organic molecules inside carbon nanotube [C] . JungWoo Lee, JiYoung Jang, Whikun Yi . 2005

机译：通过将有机分子包裹在碳纳米管中，两性掺杂的单壁碳纳米管的电性能变化
5. Novel Syntheses of Thermoelectric and Nanostructured Materials and a System for Purifying and Sorting Metallic and Semiconducting Single-Walled Carbon Nanotubes in a Mixed-Tube Suspension. [D] . Chi, Su Ike Chih. 2014

机译：新型热电和纳米结构材料的合成，以及用于在混合管悬浮液中纯化和分选金属和半导体单壁碳纳米管的系统。
6. Unzipping of Single-Walled Carbon Nanotube for theDevelopment of Electrocatalytically Active Hybrid Catalyst of GraphiticCarbon and Pd Nanoparticles [O] . Siniya Mondal, Sourov Ghosh, C. Retna Raj, 2018

机译：单壁碳纳米管的解压缩石墨的电催化活性杂化催化剂的研制。碳和钯纳米颗粒
7. Electrical Transport Properties of Multilayered Single-Walled Carbon Nanotube Films [O] . Zhao Yanli, Li Wenzhi 2012

机译：多层单壁碳纳米管薄膜的电输运特性

Reassembly of single-walled carbon nanotubes into hybrid multilayered nanostructures inside nanotube extruders

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