Atomic scale mass delivery driven by bend kink in single walled carbon nanotube

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• 作者：Biao Kan ; Jianning Ding ; Zhiyong Ling ; Ningyi Yuan ; Guanggui Cheng
• 关键词：Buckling ; Carbon nanotube ; Kink ; Mass delivery ; Molecular dynamics ; van der Waals interaction
• 刊名：Applied Surface Science
• 出版年：2010
• 出版时间：15 March 2010
• 年：2010
• 卷：256
• 期：11
• 页码：3418-3422
• 全文大小：544 K

文摘

The possibility of atomic scale mass delivery by bend kink in single walled carbon nanotube was investigated with the aid of molecular dynamics simulation. By keeping the bending angle while moving the tube end, the encapsulated atomic scale mass such as atom, molecule and atom group were successfully delivered through the nanotube. The van der Waals interaction between the encapsulated mass and the tube wall provided the driving force for the delivery. There were no dramatic changes in the van der Waals interaction, and a smooth and steady delivery was achieved when constant loading rate was applied. The influence of temperature on the atom group delivery was also analyzed. It is found raising temperature is harmful to the smooth movement of the atom group. However, the delivery rate can be promoted under higher temperature when the atom group is situated before the kink during the delivery.