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Surface characterization and catalytic properties of La1−x -Sr x CoO3

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Abstract

The surface chemical states of the perovskite-type compounds, strontium doped lanthanum cobalt oxides (La1−x Sr x CoO3), have been investigated using X-ray photoelectron spectroscopy (XPS). Catalytic oxidations of both methane and CO have also been investigated using flow methods. The chemical composition of the surface of La1−x Sr x CoO3 was very different from that in the bulk, which was measured by X-ray fluorescence spectroscopy (XRFS). The catalytic activity of La1−x Sr x CoO3 increased with an increase in the quantity of cobalt atoms on the surface.

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Authors and Affiliations

  1. Housing Products Research Laboratory, Matsushita Housing Products Co. Ltd., Yamato-Koriyama, 639-11, Nara, Japan

    Kenji Tabata & Ikuo Matsumoto

  2. Matsushita Technoresearch Inc., 570, Moriguchi, Osaka, Japan

    Shigemi Kohiki

Authors
  1. Kenji Tabata
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  2. Ikuo Matsumoto
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  3. Shigemi Kohiki
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Tabata, K., Matsumoto, I. & Kohiki, S. Surface characterization and catalytic properties of La1−x -Sr x CoO3 . J Mater Sci 22, 1882–1886 (1987). https://doi.org/10.1007/BF01132422

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  • DOI: https://doi.org/10.1007/BF01132422

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