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Reactivity studies of Au-Pd supported nanoparticles for catalytic applications

Lopez-Sanchez, Jose Antonio, Dimitratos, Nikolaos, Glanville, Neil P., Kesavan, Lokesh, Hammond, Ceri, Edwards, Jennifer Kelly, Carley, Albert Frederick, Kiely, Christopher John and Hutchings, Graham John 2011. Reactivity studies of Au-Pd supported nanoparticles for catalytic applications. Applied Catalysis A: General 391 (1-2) , pp. 400-406. 10.1016/j.apcata.2010.05.010

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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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Subjects: Q Science > QD Chemistry
Uncontrolled Keywords: Gold and palladium supported catalysts; Hydrogen peroxide synthesis; Benzyl alcohol oxidation; CO oxidation; Sol-immobilisation
Publisher: Elsevier
ISSN: 0926-860X
Last Modified: 04 Oct 2019 22:40
URI: http://orca.cf.ac.uk/id/eprint/13118

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