The Study on Catalytic Properties of Perovskite Oxides of Iron

Abstract

Abstract: Ascries of La_1-xA'_xFeO₃(A'=Ca, Sr, Ba; 0≤x≤1) was prepared. CO oxidation activity was studied when La was substituted partly by Ca, Sr, Ba and the crystal structure was measured by XRD. The adsorption properties were studied by XPS and TPD. It was found that the alkaline earth element substituted complex oxides (except that containing>0. 5 Ca and 1. 0 Ba) are of the perovskite type. Based on the obtained results it can be concluded that the adsorbed oxygen ions are responsible for the oxidation of CO. In addition, we tried to do some explanation for the activity of the mentioned reaction.

Key words: Perovskite oxide, Oxidation of CO, TPD

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Ji Yushu, Wei Quan, Guo Benheng, Jian Bo, Uu Xiaoxun . The Study on Catalytic Properties of Perovskite Oxides of Iron[J]. Chem. J. Chinese Universities, 1990, 11(5): 491.

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The Study on Catalytic Properties of Perovskite Oxides of Iron

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