Articles
  • Effects of boron source composition ratio on the microstructure and adsorption performance of hexagonal boron nitride prepared by template method
  • Zhang Ning*, Liu Huan, Zhang Tianwen, Kan Hongmin, Wang Xiaoyang and Cui Xingyu
  • Key Laboratory of Advanced Materials Manufacturing Technology of Liaoning Province, Shenyang University, Shenyang, Liaoning 110044, China
Abstract
The paper was prepared spherical hexagonal boron nitride with different microstructures under flowing ammonia atmosphere. The effect of boron source component ratios (molar ratio of borax and boric acid) on the phase composition of the sample were studied: the work also explored the effect of boron source component ratio on the microstructure and adsorption performance of h-BN. Spherical hexagonal boron nitride had corresponding to shell structure, mesoporous structure, and solid structure when the ratio of boron source components respectively was 1 : 0.5, 1 : 1, and 1 : 2. Between 1 : 1 and 1:0.5, the former had an lower adsorptions at low relative pressures. On the contrary, the adsorption of former would increased at higher relative pressures and reached up 276.02 cm3 g−1, and the maximum adsorption of the latter reached only 228.20 cm3 g−1. Under any relative pressure, the adsorption capacity was the lowest when the boron source composition ratio was 1 : 2.

Keywords: Boron source component ratio, Hexagonal boron nitride, Microstructure, Adsorption performance.

This Article

  • 2016; 17(3): 181-185

    Published on Mar 31, 2016