[1F12-1F14] Interenational sess. (3)

[1F14] Crystalline Zr₃SO₉ oxides with superior acid catalytic property to the conventional sulfated zirconia

○Meilin Tao¹, Satoshi Ishikawa¹, Takuji Ikeda², Shunsaku Yasumura³, Yuan Jing³, Takashi Toyao³, Ken-ichi Shimizu³, Hiromi Matsuhashi⁴, Wataru Ueda¹ (1. Kanagawa University, 2. Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), 3. Institute for Catalysis, Hokkaido University, 4. Hokkaido University of Education)

Keywords:Sulfated Zirconia, Crystal structure, Acid catalysis

Sulfated zirconia has attracted great interest due to its robust acidity and high activities are realized in several important acid-catalyzed industrial reactions. However, its catalytically active structure has scarcely been understood so far due to the nonuniformity of its structure. Here, we successfully synthesized crystalline Zr₃SO₉ by hydrothermal synthesis. This material was comprised of a uniform structural arrangement including sulfate and exhibited outstanding catalytic activity for several acid reactions. Based on the crystal structure-catalytic activity relationship, acid catalysis over sulfated zirconia was clarified.