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Particle size effects in selective oxidation of lactose with Pd/h-BN catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
40082 45843 2013 11 PDF Available
Title
Particle size effects in selective oxidation of lactose with Pd/h-BN catalysts
Abstract

•Pd/h-BN catalysts were readily prepared by wet impregnation or aqueous impregnation.•Pd/h-BN catalysts were 100% selective in the oxidation of lactose.•Particle size distribution needed to obtain very active catalysts: 3–15 nm.•The determining factor influencing the activity is the proportion of Pd particles inferior to 3 nm.

Pd/h-BN catalysts were synthesized, which are active and selective in the oxidation of lactose to lactobionic acid. Several parameters in the preparation of Pd/h-BN catalysts were varied such as the impregnation solvent, the Pd precursor, the palladium loading, the activation method, in order to study their influence on the structural characteristics of the materials obtained. The effect of the Pd particle sizes on the catalytic performances in lactose oxidation was particularly investigated. It was shown that the most active catalysts in the oxidation of lactose have a particle size distribution comprised between 3 and 15 nm. The determining factor which influences badly the activity is the proportion of metallic particles inferior to 3 nm at the surface of the support. If the latter is above 10%, it has a negative effect on the lactose conversion.

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Keywords
Boron nitride; Lactose; Palladium; Oxidation; Particle size
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Particle size effects in selective oxidation of lactose with Pd/h-BN catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 467, 2 October 2013, Pages 463–473
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