Chin. Phys. Lett.  1999, Vol. 16 Issue (5): 376-377    DOI:
Original Articles |
X-Ray Photoelectron Spectrascopy Investigation of Ceria Doped with Lanthanum Oxide
DU Xue-yan1,2;LI Wen-chao2;LIU Zhen-xiang1;XIE Kan1
1Institute of Physics, Chinese Academy of Sciences, Beijing 100080 2Department of Physical Chemistry, University of Science and Technology, Beijing 100083
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DU Xue-yan, LI Wen-chao, LIU Zhen-xiang et al  1999 Chin. Phys. Lett. 16 376-377
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Abstract The influence of doping lanthana on valent state of CeO2 surface has been studied by using x-ray photoelectron spectrascopy It was found that La3+ doping in host CeO2lattice can promote to convert Ce4+ into Ce3+ and enhance adsorbing-carbonyl capacity of the materials. However, the inversion of Ce4+ to Ce3+ is depressed by dopant La3+ during argon ion bombardment.
Keywords: 73.20.-r      79.60.-i      71.20.Eh     
Published: 01 May 1999
PACS:  73.20.-r (Electron states at surfaces and interfaces)  
  79.60.-i (Photoemission and photoelectron spectra)  
  71.20.Eh (Rare earth metals and alloys)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1999/V16/I5/0376
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