Direct evidence for lip-lip interactions in multi-walled carbon nanotubes
Multi-walled carbon nanotubes, lip lip interaction, in situ transmission electron microscopy
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.
Tsinghua University Press
Chuanhong Jin,Kazu Suenaga,Sumio Iijima, Direct evidence for lip-lip interactions in multi-walled carbon nanotubes. NanoRes.2008, 1: 434-439