A "citrate route"-derived procedure to directly synthesize perovskite catalysts on a cordierite monolith has been developed as a simple, sustainable, fast and reproducible alternative to washcoating. The procedure has been validated with LaCoO3, a well-established perovskite active for oxidation reactions. The activity of LaCoO3 directly synthesized on monolith towards CO and C3s oxidation has been compared both with LaCoO3 powders and LaCoO3/monolithsystems obtained by traditional, optimized washcoating procedure. It has been proved that the direct synthesis of the perovskite on the cordierite monolith results in a very uniform, stable catalyst coating, with the same specific activity of powders. (C) 2015 Elsevier B.V. All rights reserved.
Washcoating vs. direct synthesis of LaCoO3 on monoliths for environmental applications
Natile MM;
2015
Abstract
A "citrate route"-derived procedure to directly synthesize perovskite catalysts on a cordierite monolith has been developed as a simple, sustainable, fast and reproducible alternative to washcoating. The procedure has been validated with LaCoO3, a well-established perovskite active for oxidation reactions. The activity of LaCoO3 directly synthesized on monolith towards CO and C3s oxidation has been compared both with LaCoO3 powders and LaCoO3/monolithsystems obtained by traditional, optimized washcoating procedure. It has been proved that the direct synthesis of the perovskite on the cordierite monolith results in a very uniform, stable catalyst coating, with the same specific activity of powders. (C) 2015 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
