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The synthesis of cadmium sulfide nanoplatelets using a novel continuous flow sonochemical reactor

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  • A continuous flow sonochemical reactor was developed capable of producing metastable cadmium sulfide (CdS) nanoplatelets with thicknesses at or below 10 nm. The continuous flow sonochemical reactor included the passive in-line micromixing of reagents prior to sonochemical reaction. Synthesis results were compared with those from reactors involving batch conventional heating and batch ultrasound-induced heating. The continuous sonochemical synthesis was found to result in high aspect ratio hexagonal platelets of CdS possessing cubic crystal structures with thicknesses well below 10 nm. The unique shape and crystal structure of the nanoplatelets are suggestive of high localized temperatures within the sonochemical process. The particle size uniformity and product throughput are much higher for the continuous sonochemical process in comparison to the batch sonochemical process and conventional synthesis processes.
  • Keywords: Nanoplatelets, Continuous sonochemical synthesis, Cubic cadmium sulfide, Quantum confinement, Quantum wells, High aspect ratio
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  • Palanisamy, B., Paul, B., & Chang, C. H. (2015). The synthesis of cadmium sulfide nanoplatelets using a novel continuous flow sonochemical reactor. Ultrasonics Sonochemistry, 26, 452-460. doi:10.1016/j.ultsonch.2015.01.004
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  • 26
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  • The work described here was funded by the US Department of Energy, Industrial Technologies Program, through award #NT08847, under contract DE-AC-05-RL01830. Additional funds were received from the Oregon Nanoscience and Microtechnologies Institute (ONAMI) under a matching grant to Oregon State University.
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