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Keywords:

  • nanostructured interfaces;
  • heterogeneous nanostructures;
  • lithium ion batteries
Thumbnail image of graphical abstract

A cantilevered carbon nanotube/amorphous Si coaxial nanostructure is studied with in situ transmission electron microscopy. The α-Si shell breaks at the anchoring point to the supporting Si substrate. The broken α-Si shell is pulled out while the CNT core remains intact, illustrating the striking interfacial mechanical properties between the CNT core and the α-Si shell.