Nano Research

, Volume 1, Issue 5, pp 434–439 | Cite as

Direct evidence for lip-lip interactions in multi-walled carbon nanotubes

Open Access
Research Article

Abstract

The stability of open edged multi-walled carbon nanotubes has been investigated by using in situ high resolution transmission electron microscopy at elevated temperatures. Formation of inter-shell structures was experimentally observed for the first time and attributed to a robust interaction between adjacent concentric shells (so-called lip-lip interaction). The fl uctuating behavior of the inter-shell structures suggests a mechanism by which the carbon atoms can pass in or out through the inter-shell edges during carbon nanotube growth or shrinkage processes.

Keywords

Multi-walled carbon nanotubes lip-lip interaction in situ transmission electron microscopy 

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Copyright information

© Tsinghua University Press and Springer Berlin Heidelberg 2008

Authors and Affiliations

  1. 1.Nanotube Research CenterNational Institute of Advanced Industrial Science and Technology (AIST)TsukubaJapan

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