electron microscopy as a powerful tool to investigate the exfoliation of boronnitride nanosheets

Electron microscopy of materials undergoing chemical reactions providesknowledge of the underlying mechanisms. however, the reactions are often complexand cannot be fully resolved using a single method. as well as characterization of thestructural properties of two-dimensional (2d) materials is very important to optimizetheir synthesis and application. here, we present the electron microscopy method usingfield emission scanning electron microscopy (fe-sem) and transmission electronmicroscopy (tem) for studying the exfoliation of synthesized boron nitride nanosheets.collectively, our data reveal that the reaction proceeds via a three-step process whichleads to a significant reduction in the dimensions and thickness of the as-obtainednanosheets compared to pristine hbn