Method for preparing carbon nano-fine particle, apparatus for preparing the same and mono-layer carbon nanotube
US6989083B2 · kind B2 · utility
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15Claims
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Key dates
| Filing date | Apr 4, 2003 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | May 2, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B2202/36
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A graphite cathode and a graphite anode are placed opposite each other through an insulating plate having a notch. A voltage is applied between both of the electrodes to generate arc discharge at the notch of the insulating plate. A given area of the graphite anode is evaporated from an electrode point of the arc discharge, and simultaneously an arc jet is generated from the notch. Thereby, a carbon nanoparticle comprising soot of carbon nanomaterial containing carbon nanohorn is generated. The soot is deposited on a recovering plate for recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.