Inorganic Chemicals Industry ›› 2019, Vol. 51 ›› Issue (3): 45-48.

• Research & Development • Previous Articles     Next Articles

Synthesis and characterization of h-BN

Sun Changhong1,2,3,Zhang Wangxi1,2,3(),Liang Baoyan1,2,3,Li Qiquan1,2,3,Zhang Lingjie1,2,3   

  1. 1.School of Materials & Chemical Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China
    2.Henan Joint International Research Laboratory of Diamond Engineering Technology
    3.Henan Research Center on Diamond Carbon Engineering Technology
  • Received:2018-09-15 Online:2019-03-10 Published:2020-05-09
  • Contact: Zhang Wangxi E-mail:5546@zut.edu.cn

Abstract:

H-BN was prepared at high temperature under N2 atmosphere using boracic acid and melamine as raw materials.The effects of amount of substance ratio of boracic acid to melamine,and roasting temperature on h-BN yield,purity and morphology were studied.The results showed that the optimum technological conditions for the synthesis of h-BN were: amount of substance ratio of boracic acid to melamine of 4.0:1,treated at 1 000 ℃ for 2 h and heated to 1 400 ℃ for 2 h.Under the above conditions,the yield of h-BN was about 25%,the purity reached 97%,and particle size was 250 nm.

Key words: boracic acid, melamine, hexagonal boron nitride

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