Surface characterization and catalytic properties of La1?x -Sr x CoO3
| Autor: | Shigemi Kohiki, Kenji Tabata, Matsumoto Ikuo |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
inorganic chemicals
Strontium Materials science Mechanical Engineering Inorganic chemistry chemistry.chemical_element Fluorescence spectroscopy Catalysis chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Mechanics of Materials Lanthanum General Materials Science Chemical composition Cobalt Carbon monoxide |
| Zdroj: | Journal of Materials Science. 22:1882-1886 |
| ISSN: | 1573-4803 0022-2461 |
| DOI: | 10.1007/bf01132422 |
| Popis: | The surface chemical states of the perovskite-type compounds, strontium doped lanthanum cobalt oxides (La1−xSrxCoO3), 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−xSrxCoO3 was very different from that in the bulk, which was measured by X-ray fluorescence spectroscopy (XRFS). The catalytic activity of La1−xSrxCoO3 increased with an increase in the quantity of cobalt atoms on the surface. |
| Databáze: | OpenAIRE |
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