TY - JOUR
T1 - Thermal stability of catalytically grown multi-walled carbon nanotubes observed in transmission electron microscopy
AU - Wang, Cheng-Yu
AU - Liu, Chuan-Pu
AU - Boothroyd, Chris
PY - 2009
Y1 - 2009
N2 - The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed in situ by transmission electron microscopy. Upon heating, Ni catalysts in MWC-NTs containing bamboo structures shrank from the tail due to evaporation, leading to additional bamboo formation and tube elongation at 800 degrees C, while the MWCNTs with FeSi catalysts remained intact up to 1050 degrees 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.
AB - The thermal stability of multi-walled carbon nanotubes (MWCNTs) was assessed in situ by transmission electron microscopy. Upon heating, Ni catalysts in MWC-NTs containing bamboo structures shrank from the tail due to evaporation, leading to additional bamboo formation and tube elongation at 800 degrees C, while the MWCNTs with FeSi catalysts remained intact up to 1050 degrees 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.
U2 - 10.1007/s00339-008-4765-y
DO - 10.1007/s00339-008-4765-y
M3 - Journal article
VL - 94
SP - 247
EP - 251
JO - Applied Physics A: Materials Science & Processing
JF - Applied Physics A: Materials Science & Processing
SN - 0947-8396
IS - 2
ER -