[Poster odd no.] Poster presentatioin

[P03] Acid property of SiO₂-Al₂O₃ supported tungsten sulfide catalysts

○Takeyuki NOGAMI¹, Hiroki MIURA ^1,2,3, Tetsuya SHISHIDO^1,2,3 (1. Tokyo Metropolitan University, 2. Research Center for Hydrogen Energy-based Society, Tokyo Metropolitan University, 3. Elements Strategy Initiative for Catalysts and Batteries, Kyoto University)

A series of SiO₂-Al₂O₃ supported tungsten sulfide catalysts were prepared and tested for cumene cracking XRD, XPS, Pyridine adsorption IR and NH3-TPD were performed to investigate the relationship between catalyst structure and acid properties. Compared with SiO₂-Al₂O₃, both WO₃/SiO₂-Al₂O₃ and WS₂/SiO₂-Al₂O₃ catalysts showed higher activity regardless of SiO₂/Al₂O₃ ratio in SiO₂-Al₂O₃ support because of increasing in Brønsted acidity. This result suggests that Brønsted acid sites were generated by the loading of WO₃ and WS₂ on SiO₂-Al₂O₃ support.

Keywords:WO3, WS2, SiO2-Al2O3