Selective deposition of palladium onto supported nickel - bimetallic catalysts for the hydrogenation of crotonaldehyde

Budroni, Gerolamo, Kondrat, Simon A., Taylor, Stuart Hamilton, Morgan, David John, Carley, Albert Frederick, Williams, Peter B. and Hutchings, Graham John 2013. Selective deposition of palladium onto supported nickel - bimetallic catalysts for the hydrogenation of crotonaldehyde. Catalysis Science & Technology 3 (10) , pp. 2746-2754. 10.1039/c3cy00449j

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Abstract

Alumina supported nickel palladium bimetallic catalysts were prepared by a selective redox deposition method and used for the hydrogenation of crotonaldehyde. Supported nickel catalysts, prepared by incipient wetness, were reduced to form a nickel hydride surface prior to contact with palladium(II) salt solutions. Palladium was successfully deposited selectively onto the nickel hydride surfaces, by a redox reaction. Catalysts were prepared using two different palladium(II) salt solutions; (a) pH 1 palladium chloride in hydrochloric acid solution or (b) pH 3 palladium nitrate in nitric acid. The deposition of palladium onto the supported nickel nanoparticles was strikingly different when using the two palladium solutions, with strong alloy formation with the pH 1 solution and a weaker segregated nickel palladium catalyst with the pH 3 solution. Both catalysts were compared with monometallic palladium and nickel supported catalysts for the hydrogenation of crotonaldehyde with the sample prepared at pH 1 being more active.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Subjects:	Q Science > QD Chemistry
Publisher:	Royal Society of Chemistry
ISSN:	2044-4753
Funders:	Johnson Matthey
Last Modified:	15 Oct 2018 03:36
URI:	http://orca.cf.ac.uk/id/eprint/52749

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