CRCU

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (3): 387-390.

• Articles • Previous Articles     Next Articles

Multi-step Reaction Route Developed for Improving Crystallinity of Boron Nitride Nanoparticles

TAN Miao1, LIAN Gang1,2, ZHANG Xiao2, ZHANG Shun-jie2, CUI De-liang1, WANG Qi-long2   

  1. 1. State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, P. R. China;
    2. School of Chemistry & Chemical Engineering, Shandong University, Jinan 250100, P. R. China
  • Received:2011-05-16 Revised:2011-10-31 Online:2012-05-25 Published:2012-05-03
  • Contact: LIAN Gang, CUI De-liang E-mail:gang_lian2000@yahoo.com.cn; cuidl@sdu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(Nos.21073107, 51102151 and 50990061), the Natural Science Foundation of Shandong Province, China(No.2R2011EMQ002) and the Independent Innovation Foundation(No. 2010TS039) and the Postdoctoral Foundation of Shandong University, China.

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Abstract: A multi-step reaction route was developed to synthesize boron nitride(BN) nanoparticles via the reaction between NaN3 and BCl3 in a benzene-thermal solution. By means of this route, the crystallinity of BN nanoparticles was improved via increasing the reaction steps. Meanwhile, a phase transformation from hexagonal BN(hBN) or turbostratic BN(tBN) to cubic BN(cBN) occurred, resulting in the increase of cBN content. Moreover, the content of cBN also slightly increased when the temperature was elevated from 265 ℃ to 280 ℃.

Key words: Boron nitride, Multi-step reaction route, Benzene-thermal synthesis, Phase transformation