N,N-Dimethyl formamide facilitated formation of hexagonal boron nitride from boric acid

作者：Xue, Yanming; Elsanousi, Ammar; Fan, Ying; Lin, Jing; Li, Jie; Xu, Xuewen; Lu, Yang; Zhang, Lei; Zhang, Tingting; Tang, Chengchun^*

来源：Solid State Sciences, 2013, 24: 1-5.

DOI：10.1016/j.solidstatesciences.2013.07.004

• DMF
• Boric acid
• Pure h-BN plates
• Transformation rate
• Graphitization index

In this paper, we report on a promoting novel process for the formation of h-BN plates by using N,N-dimethyl formamide-treated boric acid (DMF-BA). Using this B source, the formation of h-BN can be indeed improved greatly compared to using pure boric acid (BA). This method effectively reduces the content of boric acid and amorphous boric oxide, enhancing the transformation rate of h-BN. For preparation of pure h-BN, it can obviously lower the resultant temperature without further purification process. Via graphitization index (G.I.) calculation and thermostability analysis, the pure h-BN plates obtained from the DMF-BA would be a promising candidate for raw material of c-BN and low-temperature applications in the air.

• 出版日期2013-10
• 单位河北工业大学