title: Fabrication of gold nanotubes from removable MgO nanowires templates.
abstract: 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.
authors.affiliation: School of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
authors.forename: Hyoun Woo
authors.initials: HW
authors.lastname: Kim
authors.forename: Jong Woo
authors.initials: JW
authors.lastname: Lee
authors.forename: Mesfin A
authors.initials: MA
authors.lastname: Kebede
authors.forename: Hyo Sung
authors.initials: HS
authors.lastname: Kim
authors.forename: Buddhudu
authors.initials: B
authors.lastname: Srinivasa
authors.forename: Myung Ho
authors.initials: MH
authors.lastname: Kong
authors.forename: Chongmu
authors.initials: C
authors.lastname: Lee
mesh_terms: 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
chemical_list: D046911:Macromolecular Substances; D008277:Magnesium Oxide; D006046:Gold