Research Article

Nano Research

, Volume 1, Issue 5, pp 434-439

Open Access This content is freely available online to anyone, anywhere at any time.

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

  • Chuanhong JinAffiliated withNanotube Research Center, National Institute of Advanced Industrial Science and Technology (AIST) Email author 
  • , Kazu SuenagaAffiliated withNanotube Research Center, National Institute of Advanced Industrial Science and Technology (AIST)
  • , Sumio IijimaAffiliated withNanotube Research Center, National Institute of Advanced Industrial Science and Technology (AIST)

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.

http://static-content.springer.com/image/art%3A10.1007%2Fs12274-008-8045-0/MediaObjects/12274_2008_8045_Fig1_HTML.jpg

Keywords

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