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Photochemical Synthesis of Ultrafine Cubic Boron Nitride Nanoparticles under Ambient Conditions
Author(s) -
Liu Hui,
Jin Peng,
Xue YanMing,
Dong Cunku,
Li Xiang,
Tang ChengChun,
Du XiWen
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201502023
Subject(s) - ammonia borane , dehydrogenation , boron nitride , nanoparticle , materials science , chemical engineering , boron , borane , irradiation , nitride , photochemistry , nanotechnology , chemistry , organic chemistry , catalysis , physics , layer (electronics) , nuclear physics , engineering
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.