Synthesized few-layers hexagonal boron nitride nanosheets Project supported by the National Natural Science Foundation of China (Grant No. 11504266), the Tianjin Natural Science Foundation, China (Grant No. 17JCQNJC02300), and the National Key Foundation for Exploring Scientific Instrument, China (Grant No. 2014YQ120351). |
(color online) XRD patterns of the calcined products at different temperatures and in different atmospheres. |