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Synthesis of MoS2 nanorods and their catalytic test in the HDS of dibenzothiophene
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Partially sulfided nanostructures were synthesized by direct sulfurization of α-MoO3 nanorods using a mixture of H2S/H2, 15 vol%, at several temperatures (400, 500, 600, 700, and 800 °C). These materials were tested as catalysts in the hydrodesulfurization (HDS) of dibenzothiophene (DBT) and characterized by specific surface areas using the expression developed by Brunauer, Emmett, and Teller (BET equation), x-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The TEM images show a gradual evolution from a smooth surface to a rough material, presenting some type of holes all over the particles, but keeping their rod-like structure throughout sulfidation. The results of evaluating the catalysts in the HDS of DBT showed that the best temperature for sulfidation is 500 °C. In all samples, a higher selectivity for hydrogenation over sulfur removal was observed.
Albiter, M. A., Huirache-Acuna, R., Paraguay-Delgado, F., Rico, J. L., & Alonso-Nunez, G. (2006). Synthesis of MoS2 nanorods and their catalytic test in the HDS of dibenzothiophene. Nanotechnology, 17(14), 3473.
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