Exfoliation and delamination of layered-typed crystal structure
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Exfoliation of layered materials into their elementary layers has attracted interest recently because such nanosheets have useful and often unique properties. Our aim is to develop synthetic strategies for preparing two-dimensional nanosheets of different materials in order to improve their properties. We have delaminated and exfoliated the layered ceramic chromium diboride (CrB2) and the layered lithium manganese phosphate (LiMnPO4) using solution-based methods. These nanosheets were characterized by a variety of techniques, including x-ray diffraction, scanning electron microscopy, transmission electron microscopy, elemental analysis, and atomic force microscopy. CrB2 nanosheets should have a wide range of useful properties with respect to their high hardness, wear resistance, and high thermal and electrical conductivity. Also, LiMnPO4 nanosheets have potential applications as high-performance cathode materials for Li-ion batteries with improved electrochemical performance compared to bulk LiMnPO4.