| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6502579 | Applied Catalysis B: Environmental | 2011 | 7 Pages |
Abstract
ⶠThe positive effect of potassium addition on the catalytic activity of strontium titanate in soot oxidation can be interpreted in terms of two mechanisms of potassium action: enhancement of oxygen surface mobility and oxygen vacancies formation in the oxygen sublattice of perovskite structure depending on the potassium localization. ⶠThe experimental results (potassium volatility, work function changes, basicity, XPS spectroscopy) revealed that the vacancy mechanism is the most efficient in stimulating the soot combustion catalytic reactivity of strontium titanate.
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Authors
B. Ura, J. TrawczyÅski, A. Kotarba, W. Bieniasz, M.J. Illán-Gómez, A. Bueno-López, F.E. López-Suárez,