Chinese Journal of Applied Chemistry ›› 1992, Vol. 0 ›› Issue (1): 65-68.

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CHARACTERIZATION OF CERIUM OXIDES AND CERIUM HALIDES BY ESCA I. Ce3d, 4d PHOTOELECTRON SPECTRA AND THEIR SATELLITE STRUCTURE

Yu Yali, Hu Gang   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1991-02-08 Revised:1991-04-18 Published:1992-02-10 Online:1992-02-10

Abstract: A study of the core-electron x-ray photoelectron spectra showed the presence of satellite structure for the 3d and 4d signals in Ce2O3, CeO2, CeCl3, CeF3. These satellites are discussed in terms of coexcitation of the charge transfer type principally O2p to Ce4ƒ transitions. It is confirmed that in the cerium compounds studied the satellites are due to energy-loss (representing shake-up) rather than energy-gain (shake-down) processes.

Key words: cerium, x-ray photoelectron spectrascopy, satellite structure, valence state