Filling single-wall carbon nanotubes with d- and f-metal chloride and metal nanowires.
Nanowires of magnetic metals (Fe, Co, Ho, Gd) have been synthesized inside the hollow interiors of single-wall carbon nanotubes (SWNTs) by filling SWNTs with precursor metal chlorides and subsequent reduction. SWNTs have been filled by either the melt-phase sealed-tube reaction or a solution-phase method. Among the metal chlorides investigated in this study, HoCl3 and GdCl3 filled the SWNTs to a significantly higher extent. The nanowires have been imaged by transmission electron microscopy (TEM), high-resolution transmission electron microscopy, and scanning transmission electron microscopy (STEM). X-ray energy dispersive spectroscopy carried out in conjunction with TEM and STEM confirmed the presence of metal chloride and metal nanowires.
Satishkumar
B C
BC
Laboratory for Research on Structure of Matter, Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Taubert
A
A
Luzzi
D E
DE
D002712:Chlorides / Q000737:chemistry*; D003035:Cobalt / Q000737:chemistry; D003460:Crystallization / Q000379:methods*; D004559:Electric Wiring; D005290:Ferric Compounds / Q000737:chemistry; D005682:Gadolinium / Q000737:chemistry; D006695:Holmium / Q000737:chemistry; D046911:Macromolecular Substances; D008280:Magnetics; D008422:Materials Testing; D008670:Metals / Q000737:chemistry*; D017348:Microscopy, Electron, Scanning Transmission; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D037742:Nanotubes, Carbon / Q000737:chemistry*; D014961:X-Ray Diffraction
D002712:Chlorides; D005290:Ferric Compounds; D046911:Macromolecular Substances; D008670:Metals; D037742:Nanotubes, Carbon; D003035:Cobalt; D005682:Gadolinium; C045312:holmium chloride; C018021:cobaltous chloride; C038958:gadolinium chloride; C024555:ferric chloride; D006695:Holmium