Hexagonal boron nitride hollow capsules with collapsed surfaces: Chemical vapor deposition with single-source precursor ammonium fluoroborate

Li Xiaopeng¹, Zhang Jun¹, Yu Chao¹, Liu Xiaoxi¹, Abbas Saleem¹, Li Jie¹, Xue Yanming^{2, †,}, Tang Chengchun^{1, ‡,}

(a) XRD patterns, (b) FTIR, and (c) nitrogen adsorption-desorption isothermals of the SBA-15, washed, and unwashed samples obtained at 1050 °C. The inset in panel (a) shows the bimodal fitting.