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Washcoating vs. direct synthesis of LaCoO3 on monoliths for environmental applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
39196 45812 2015 12 PDF Available
Title
Washcoating vs. direct synthesis of LaCoO3 on monoliths for environmental applications
Abstract

•LaCoO3/monolith systems are obtained by comparing different deposition procedures.•A new direct synthesis method is developed and compared with traditional washcoating.•Direct synthesis yields uniformly coated composites as active as LaCoO3 powders.•LaCoO3/monolith: interface and growing mechanisms.•Direct synthesis: simple, sustainable, fast, reproducible alternative to washcoating.

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/monolith systems 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.

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Keywords
Perovskite; TWC; Monolith; VOC; CO; Oxidation; Washcoating
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Washcoating vs. direct synthesis of LaCoO3 on monoliths for environmental applications
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 499, 25 June 2015, Pages 146–157
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us