Journal
TOPICS IN CATALYSIS
Volume 52, Issue 13-20, Pages 2097-2100Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-009-9385-z
Keywords
Soot; Catalytic combustion; Potassium-copper catalyst; Perovskite
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The activity for soot combustion in NOx/O-2 and stability, under reaction conditions, of two potassium-perovskite catalysts (K/SrTiO3 and Sr0.8K0.2TiO3) and a potassium-copper perovskite catalyst (K-Cu/SrTiO3) has been studied. In fresh catalysts, potassium is more active than copper. However copper is stable under reaction conditions while potassium-catalysts are progressively deactivated due to the loss of this metal during consecutive TPR cycles.
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