A top down (micro to nano conversion) approach is presented for the fabrication of WS 2 and MoS 2 nanoplates employing a single-step, scalable, and environmentally friendly reaction under autogenic pressure at elevated temperature (RAPET). The thermal (750 °C) solid-state reaction between micrometer-sized W or Mo with microsized S in an inert atmosphere yielded a high yield of WS 2 or MoS 2 nanoplates via carving phenomena. The as-prepared carved microstructures are comprised of two-dimensional WS 2 /MoS 2 nanoplates. The systematic compositional, structural, morphological, and BET surface area analysis is presented, and a mechanistic elucidation for the fabrication of WS 2 /MoS 2 nanoplates is provided.
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Pol et al. (2008) studied this question.
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