Synthesis and field emission properties of titanium carbide nanowires
Single crystalline TiC nanowires have been synthesized through a chloride-assisted carbothermal reduction process using active carbon, TiO2 and NaCl powders as precursors and carbon-coated cobalt or nickel nanoparticles as a catalyst. The products were characterized by x-ray diffraction, electron mi...
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Published in | Nanotechnology Vol. 18; no. 14; pp. 145615 - 145615 (6) |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
IOP Publishing
11.04.2007
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Online Access | Get full text |
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Summary: | Single crystalline TiC nanowires have been synthesized through a chloride-assisted carbothermal reduction process using active carbon, TiO2 and NaCl powders as precursors and carbon-coated cobalt or nickel nanoparticles as a catalyst. The products were characterized by x-ray diffraction, electron microscopy, energy-dispersive x-ray spectroscopy and x-ray photoelectron spectroscopy. The TiC nanowires have a face-centred cubic structure with a typical diameter of 20-50 nm and a length of up to a few microns. The formation of the product could be well correlated with the characteristic core-shell structure of the catalyst used. The field emission of the TiC nanowires follows the conventional Fowler-Nordheim behaviour and shows a low turn-on field of about 7.1 V mum-1 and good emission stability. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0957-4484 1361-6528 |
DOI: | 10.1088/0957-4484/18/14/145615 |