Laser pyrolysis method for producing carbon nano-spheres
US7601321B2 · kind B2 · utility
7Cited by
2References
35Claims
0Family size
Inventors
Key dates
| Filing date | Feb 17, 2004 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Nov 2, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention encompasses methods and apparatus for creating metal nanoparticles embedded in a carbonaceous char, the conversion of an carbonaceous char with embedded metallic nanoparticles to graphite-encased nano-sized metal particles surrounded by char, the separation of the graphite encased metal particles from the char matrix, and the related preparation and isolation of carbon nanosphere materials with or without the enclosed metal nanoparticles, and the uses of such carbon nanospheres and graphite enclosed metal nanoparticles as supports and enhancers for fuel cell electrocatalysts and other applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.