[9p-Z24-1~14] 【CS.7】 Code-sharing Session of 7.4 & 9.5

[9p-Z24-7] Observations of charge transfer for cocatalyst expression mechanism of Ni nanoparticles by composite spectroscopy with synchrotron radiation

〇Hitoshi Kawai¹, Muneaki Yamamoto², Tomoko Yoshida², Akira Yasui³, Kojiro Mimura⁴, Eiji Ikenaga^1,3,5 (1.Nagoya Univ., 2.Osaka City Univ., 3.JASRI, 4.Osaka Pref. Univ., 5.Nagoya Univ. IMaSS)

Keywords:catalyst, Nano particle, spectroscopy with synchrotron radiation

This study is based on composite spectroscopy using resonance hard X-ray photoelectron spectroscopy (Resonant HAXPES, r-HAXPES) and X-ray absorption spectroscopy (XAFS), which are currently being developed at SPring-8 (large synchrotron radiation facility).The composite spectroscopy was applied to elucidate the co-catalyst function of Ni nanoparticles supported on the surface of solid photocatalyst Ga₂O₃. The analysis of the measurement results shows that the transition to the e_g hybrid orbital formed by the interaction between the Ni 3d and O 2p orbitals and the significant electron yield increase of CT, Ni₂O₃ in that energy region, that is to say, the charge transfer between Ni and O was observed.