[15p-PB2-1~69] 1 Interdisciplinary Physics and Related Areas of Science and Technology (Poster)

[15p-PB2-44] Analysis of catalytic properties of Cu-doped CoGa intermetallic compounds by soft X-ray nanospectroscopy

〇Kouyou Fujimoto^1,2,3, Yushi Sumida^1,2,3, Sena Matsushita⁴, Takayuki Kojima⁴, Takuo Ohkochi^2,3 (1.Eng., U, Hyogo, 2.LASTI, U. Hyogo, 3.RIKEN RSC, 4.FTST, Shinshu U.)

Keywords:

soft X-ray nanospectroscopy,catalytic properties

Cu-doped CoGa intermetallic compounds exhibit high selectivity in alkyne hydrogenation reactions. In this study, soft X-ray PEEM was employed to investigate the surface electronic states in an element-selective and submicron-scale manner to clarify the origin of this behavior. In the 5% Cu-doped sample, Cu aggregation and slight oxidation were observed, indicating that the catalytic activity is effective over the entire surface.