期刊
CATALYSIS TODAY
卷 139, 期 1-2, 页码 125-129出版社
ELSEVIER
DOI: 10.1016/j.cattod.2008.08.014
关键词
Preparation of perovskite-type oxide; SmFeO3; Catalytic activity; CO oxidation; XPS
The perovskite-type SmFeO3 powders were prepared by the four different methods, named decomposition method of heteronuclear cyano complexes (CN), polymer precursor method (PP), reverse micelle method (RM) and reverse homogenous precipitation method (RHP), and their catalytic activities were evaluated with a CO oxidation reaction. The surface areas and the surface chemical compositions of Sm, Fe, O and C were strongly dependent on the preparation methods and calcination temperatures. On the basis of such the characteristics on the surface the factors controlling the catalytic activity are discussed. (C) 2008 Elsevier B.V. All rights reserved.
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