Benzene adsorption on a WS2(100) surface was studied by ab initio periodic DFT computations. Benzene adsorption is facile on the bridge site of the bare W edge via η2 or η3 coordination. Taking into account the stable configuration at the W edge under typical hydrotreating reaction conditions (623 K, H2S/H2 = 0.01), benzene adsorption is found to be difficult, even when defective bridge sites are created.
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Koide, R., Hensen, E.J.M., Paul, J.F. et al. A DFT study on benzene adsorption over tungsten sulfides: surface model and adsorption geometries. Top Catal 45, 175–179 (2007). https://doi.org/10.1007/s11244-007-0261-4
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DOI: https://doi.org/10.1007/s11244-007-0261-4