Citation: Wei FANG, Xiao Peng HAO, Ning LUN, Xian ZHAO, De Liang CUI, Xu Tang TAO, Min Hua JIANG. Effect of pH on the Hydrothermal Synthesis of BN Nanocrystals[J]. Chinese Chemical Letters, ;2006, 17(4): 537-540. shu

Effect of pH on the Hydrothermal Synthesis of BN Nanocrystals

1.
State Key Lab of Crystal Materials, Shandong University, Ji'nan 250100;
2.
School of Material Science & Engineering, Shandong University, Ji'nan 250011

Received Date: 27 June 2005

Fund Project: This work was supported by the National Natural Science Foundation of China (NNSFC, No. 20473048, 50272036, 50302005, 90206042), Key Project of Science & Technology Research of Ministry of Education (KPSTR) and Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP, No. 20020422057).

Boron nitride (BN) has been synthesized using hydrothermal synthesis method. The experimental results showed that the pH value of the reaction solution has an important effect on the yield and phases of BN samples. As the pH value decreased, the content of cBN increased and the yield improved. The increase in cBN content is resulted from the conversion of oBN into cBN under hydrothermal condition, and the growth of cBN nanocrystals may due to the decrease in the reaction speed, thus the crystalline perfection of BN improved when the pH value decreased.
- Hydrothermal synthesis,
- pH value,
- boron nitride
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