Thermal stability of catalytically grown multi-walled carbon nanotubes observed in transmission electron microscopy

Cheng Yu Wang, Chuan-Pu Liu, C. B. Boothroyd

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed in situ by transmission electron microscopy. Upon heating, Ni catalysts in MWCNTs containing bamboo structures shrank from the tail due to evaporation, leading to additional bamboo formation and tube elongation at 800°C, while the MWCNTs with FeSi catalysts remained intact up to 1050°C except for better crystallinity. The physisorbed carbon and/or hydrocarbon on surfaces and super-saturated carbon in the Ni catalysts should be responsible for the phenomena.

Original languageEnglish
Pages (from-to)247-251
Number of pages5
JournalApplied Physics A: Materials Science and Processing
Volume94
Issue number2
DOIs
Publication statusPublished - 2009 Feb 1

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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