X-Ray Photoelectron Spectrascopy Investigation of Ceria Doped with Lanthanum Oxide

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-yan^1,2;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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	LI Wen-chao
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