Synthesis and Characterization of Perovskite-Type Oxides La 1−x M x CoO 3 (M = Ce, Sr) for the Selective CO Oxidation (SELOX)
作者： Martin Schmal , Carlos AC Perez , Robert Newton SH Magalhães , None
DOI: 10.1007/S11244-014-0275-7
关键词:
摘要: Perovskite-type oxides La1−xMxCoO3 (M = Ce, Sr) were prepared by citrate method, characterized and evaluated in the selective CO oxidation (SELOX-CO). The insertion of low Cerium or Strontium content generated solids with a single phase related LaCoO3 perovskite. For higher contents we observed segregation CeO2 SrCO3. iso-structural substitution favors formation vacancies. SELOX-CO showed 100 % conversion at 200 °C. Higher temperatures favored hydrogen methanation.
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