XPS STUDY OF THE REDUCTION OF CERIUM DIOXIDE

被引:600
作者
ROMEO, M [1 ]
BAK, K [1 ]
ELFALLAH, J [1 ]
LENORMAND, F [1 ]
HILAIRE, L [1 ]
机构
[1] UNIV STRASBOURG 1, CATALYSE & CHIM SURFACES LAB, CNRS, URA 423, F-67070 STRASBOURG, FRANCE
关键词
D O I
10.1002/sia.740200604
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
X-ray photoelectron spectroscopy of cerium oxides is discussed. The well-resolved 3d3/2 (5d 6s)0 4f0 2p0 peak at 916.70 eV cannot be used for calculating the amount of reduction because the correlation between its intensity and the concentration of Ce(IV) and Ce(III) species is not linear. We have therefore developed a complete analysis of the whole spectrum. The deconvolution procedure is explained in detail and the method is applied to two examples: a CeO2/Al2O3 sample and a Pd/CeO2 catalyst reduced under hydrogen.
引用
收藏
页码:508 / 512
页数:5
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