Fabrication of gold nanotubes from removable MgO nanowires templates.
We have prepared MgO/Au core-shell nanowires, subsequently demonstrating the fabrication of Au nanotubes by using MgO nanowires as a sacrificial template. The samples were characterized by scanning electron microscopy, X-ray diffraction, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. MgO nanowires were coated with a conformal layer of Au via sputtering. By etching away the MgO core in aqueous (NH3)2SO4 solution, hollow nanotube-like structures of Au were readily obtained. This approach offers a potentially useful route for the fabrication of a variety of hollow metallic structures.
Kim
Hyoun Woo
HW
School of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
Lee
Jong Woo
JW
Kebede
Mesfin A
MA
Kim
Hyo Sung
HS
Srinivasa
Buddhudu
B
Kong
Myung Ho
MH
Lee
Chongmu
C
D003460:Crystallization / Q000379:methods*; D006046:Gold / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008277:Magnesium Oxide / Q000737:chemistry*; D008422:Materials Testing; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013499:Surface Properties
D046911:Macromolecular Substances; D008277:Magnesium Oxide; D006046:Gold