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

Budroni, Gerolamo, Kondrat, Simon A., Taylor, Stuart H. ORCID: https://orcid.org/0000-0002-1933-4874, Morgan, David John ORCID: https://orcid.org/0000-0002-6571-5731, Carley, Albert Frederick, Williams, Peter B. and Hutchings, Graham John ORCID: https://orcid.org/0000-0001-8885-1560 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:	05 Jan 2023 14:46
URI:	https://orca.cardiff.ac.uk/id/eprint/52749

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