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CRYSTALLINE BORON NITRIDE AEROGELS

United States Patent Application

20170297915
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
This disclosure provides methods and materials related to boron nitride aerogels. For example, one aspect relates to a method for making an aerogel comprising boron nitride, comprising: (a) providing boron oxide and an aerogel comprising carbon; (b) heating the boron oxide to melt the boron oxide and heating the aerogel; (c) mixing a nitrogen-containing gas with boron oxide vapor from molten boron oxide; and (d) converting at least a portion of the carbon to boron nitride to obtain the aerogel comprising boron nitride. Another aspect relates to a method for making an aerogel comprising boron nitride, comprising heating boron oxide and an aerogel comprising carbon under flow of a nitrogen-containing gas, wherein boron oxide vapor and the nitrogen-containing gas convert at least a portion of the carbon to boron nitride to obtain the aerogel comprising boron nitride.
Zettl, Alexander K. (Kensington, CA), Rousseas, Michael (Burlingame, CA), Goldstein, Anna P. (Berkeley, CA), Mickelson, William (Albany, CA), Worsley, Marcus A. (Hayward, CA), Woo, Leta (Oakland, CA)
LAWRENCE LIVERMORE NATIONAL SECURITY, LLC (Livermore CA), THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (Oakland CA)
15/ 408,297
January 17, 2017
STATEMENT OF GOVERNMENT SUPPORT [0002] This invention was made with government support under Contract No. DE-AC02-05CH11231 awarded by the U.S. Department of Energy, under Contract No. DE-AC52-07NA27344 awarded by the U.S. Department of Energy, under Grant X10-8049-C awarded by the Air Force Office of Scientific Research. The government has certain rights in this invention.