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Sonochemical synthesis of boron and boron-carbon nanomaterials by alkali metal reduction

Patent image
NRL

A method of preparing a nanomaterial comprising boron includes sonicating a boron trihalide and/or boron alkoxide in a hydrocarbon solvent with an alkali metal under an inert atmosphere to form a dark solid, and annealing the dark solid at a temperature sufficient to sublime alkali metal salt therein, thereby obtaining a boron nanomaterial. Reacting with a Group IVB metal produces a metal boride, and combining an alkali metal salt of a hydrocarbon with the boron trihalide prior to sonicating produces a carbonaceous boron material.

Inventors: 
Purdy, Andrew P.
Patent Number: 
Technical domain: 
Materials and Coatings
FIle Date: 
2013-11-25
Grant Date: 
2015-04-28
Grant time: 
519 days
Grant time percentile rank: 
9
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY