Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 24, Pages 7051-7054Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201502023
Keywords
ammonia borane; cubic boron nitride; dehydrogenation; laser irradiation; nanoparticles
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Funding
- National Key Basic Research Program of China [2014CB931703]
- National Natural Science Foundation of China [51402084, 21103224]
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Cubic boron nitride (c-BN) is a super-hard material whose hardness increases dramatically with decreasing size. However, c-BN nanoparticles (NPs) with sizes less than 10 nm have never been obtained. Herein we report a simple strategy towards the synthesis of ultrafine c-BN NPs with an average size of 3.5 nm. The method, under ambient conditions, exploits a laser-induced photochemical effect and employs dioxane solution of ammonia borane (AB) as a liquid target. Meanwhile, total dehydrogenation of AB is realized by laser irradiation. Therefore, this approach shows great potential for the preparation of super-hard NPs as well as controllable dehydrogenation.
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