Abstract
Carbon nanomaterials have been prepared by the thermal chemical vapor deposition (CVD) method in which C2H2 gas was deposited on the Ni-Al(OH)3 mixture pretreated by mechanochemical treatment with a high-energy mill. As the duration time of grinding for the Ni-Al(OH)3 mixture by the mixer mill is increased, amorphous Al(OH)3 and smaller Ni particles agglomerated into spheres. With unground and 120-min ground mixture of Ni-Al(OH)3, carbon nanomaterials were prepared at 500 and 600°C. As a result, carbon nanomaterials prepared on a ground mixture have more uniform morphologies than those of the unground mixture. The characterization of Ni-Al(OH)3 mixture and as-prepared carbon samples was done by X-ray diffractometer (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), Raman spectroscopy and current-voltage (I-V) measurement.
Original language | English |
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Pages (from-to) | 30-36 |
Number of pages | 7 |
Journal | Powder Technology |
Volume | 129 |
Issue number | 1-3 |
DOIs | |
State | Published - 8 Jan 2003 |
Keywords
- CVD
- Carbon nanomaterials
- Field emission
- Mechanochemical treatment