[2P01-55] Poster presentation

[2P17] Analysis of Surface Oxygen Species on perovskite-type LaNiO₃ catalysts using XPS and XAFS spectroscopy

*Motoyasu Imamura¹ (1. RI Meas Anal Instrum, AIST)

The surface oxygen species on the perovskite-type oxide LaNiO₃ and La_0.9Sr_0.1NiO_3-δ were invetigated by XPS and XANES using SR. From XPS spectra excited by x-ray with various photon energy, the depth distribution of the surface oxygen species was estimated using IMFP. The electonic states of the species were revealed from O K-edge XANES spectra .

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