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). |
(a) Typical TEM images of the BN whisker synthesized in NH3; (b) TEM images of the BN nanosheets synthesized by ultrasonic treatment; (c) and (d) the corresponding HRTEM image and the inset shows the electron energy loss spectrum data acquired for the same sample. |