Fabrication of small diameter few-walled carbon nanotubes with enhanced field emission property.
A unique type of carbon nanotubes with 2 to 5 layers of sidewalls and diameters less than 10 nm was synthesized by the thermal chemical vapor deposition (CVD) method with MgO supported Fe/Mo catalyst. Unlike the typical CVD grown multi-walled carbon nanotubes, these few-walled carbon nanotubes (FWNTs) have a high degree of structural perfection. They have enhanced electron field emission characteristics compared to the current commercial nanotubes, with a low threshold field for emission and improved emission stability.
Qian
Cheng
C
Department of Chemistry, Duke University, Durham, NC 27708, USA.
Qi
Hang
H
Gao
Bo
B
Cheng
Yuan
Y
Qiu
Qi
Q
Qin
Lu-Chang
LC
Zhou
Otto
O
Liu
Jie
J
D003460:Crystallization / Q000379:methods*; D004563:Electrochemistry / Q000379:methods; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000032:analysis / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size
D037742:Nanotubes, Carbon