Skip to Content
Find More Like This
Return to Search

Production of fullerenes using concentrated solar flux

United States Patent

June 20, 2000
View the Complete Patent at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
A method of producing soot containing high amounts of fullerenes comprising: providing a primary concentrator capable of impingement of a concentrated beam of sunlight onto a carbon source to cause vaporization of carbon and subsequent formation of fullerenes, or providing a solar furnace having a primary concentrator with a focal point that concentrates a solar beam of sunlight; providing a reflective secondary concentrator having an entrance aperture and an exit aperture at the focal point of the solar furnace; providing a carbon source at the exit aperture of the secondary concentrator; supplying an inert gas over the carbon source to keep the secondary concentrator free from vaporized carbon; and impinging a concentrated beam of sunlight from the secondary concentrator on the carbon source to vaporize the carbon source into a soot containing high amounts of fullerenes.
Fields; Clark L. (Greeley, CO), Pitts; John Roland (Lakewood, CO), King; David E. (Lakewood, CO), Hale; Mary Jane (Golden, CO), Bingham; Carl E. (Denver, CO), Lewandowski; Allan A. (Evergreen, CO)
Midwest Research Institute (Kansas City, MO)
08/ 290,538
August 15, 1994
The United States Government has rights in this invention under Contract No. DE-ACO2-83CH10093 between the United States Department of Energy and the National Renewable Energy Laboratory, a Division of the Midwest Research Institute.