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Reactivity studies of Au–Pd supported nanoparticles for catalytic applications

Paper ID Volume ID Publish Year Pages File Format Full-Text
41662 45895 2011 7 PDF Available
Title
Reactivity studies of Au–Pd supported nanoparticles for catalytic applications
Abstract

The utilisation of gold–palladium nanoparticles either in the form of colloids or supported nanoparticles has received enormous attention in recent years. These materials are very effective for the transformation of organic compounds to highly useful chemical products. The catalytic materials are usually prepared using deposition–precipitation and impregnation techniques, but recently significant attention has been focused on the use of colloidal methods. Here we compare and contrast the preparation and catalytic reactivity of Au–Pd supported nanoparticles synthesised by deposition–precipitation and colloidal methods. The catalyst materials have been evaluated for three different reactions, namely, the oxidation of benzyl alcohol, the direct synthesis of hydrogen peroxide and the oxidation of carbon monoxide. In addition, we have focused our attention on the pre-treatment temperature and the improvement of the deposition–precipitation method by using urea and sodium borohydride for the preparation of highly active Au–Pd supported nanoparticles.

Graphical abstractThe catalytic reactivity of Au–Pd supported nanoparticles synthesised by deposition–precipitation and colloidal methods have been compared. We have focused our attention on the calcination temperature and the improvement of the deposition–precipitation method by using urea and sodium borohydride for the preparation of Au–Pd supported nanoparticles that are very active for both the direct synthesis of H2O2 and CO oxidation.Figure optionsDownload full-size imageDownload high-quality image (67 K)Download as PowerPoint slide

Keywords
Gold and palladium supported catalysts; Hydrogen peroxide synthesis; Benzyl alcohol oxidation; CO oxidation; Sol-immobilisation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 391, Issues 1–2, 4 January 2011, Pages 400–406
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