Patent ID: 9676627
Date: 2017-06-13
CPC Classifications: C01B,C01P,C04B,C23C

Claim:
1. A method of growing boron nitride nanotubes comprising: applying a catalyst solution to a carbon substrate comprising carbon fibers, the catalyst solution comprising iron nitrate and magnesium nitrate; providing a precursor mixture into a precursor vessel, the precursor mixture comprising a mixture of a first vapor deposition precursor and a second vapor deposition precursor, wherein the first vapor deposition precursor comprises boric acid and urea and the second vapor deposition precursor comprises iron nitrate, magnesium nitrate, and D-sorbitol; introducing the precursor mixture and the carbon substrate into a furnace; and heating the furnace to vaporize the precursor mixture in the presence of a flowing gas to facilitate growth of the boron nitride nanotubes on the carbon substrate.