Quasi-continuous growth of ultralong carbon nanotube arrays.
We report the growth of ultralong (>10 cm) multi-walled and single-walled carbon nanotubes such that the length is limited by the size of the furnace rather than by the termination of growth. The disturbance of microscale laminar flows results in disordered or shorter growth of carbon nanotubes. By downsizing reaction pipes, reaction gas flows are stabilized with low Reynolds numbers. In this way, the catalyst nanoparticles at the end of growing carbon nanotubes can travel a longer distance to grow ultralong nanotubes.
Hong
Byung Hee
BH
Department of Physics, Columbia University, New York, NY 10027, USA.
Lee
Ju Young
JY
Beetz
Tobias
T
Zhu
Yimei
Y
Kim
Philip
P
Kim
Kwang S
KS
D002712:Chlorides; D000431:Ethanol; D005290:Ferric Compounds; D008855:Microscopy, Electron, Scanning; D037742:Nanotubes, Carbon / Q000737:chemistry*
D002712:Chlorides; D005290:Ferric Compounds; D037742:Nanotubes, Carbon; D000431:Ethanol; C024555:ferric chloride