University of Hull logo

Pd₃Sn nanoparticles on TiO₂ and ZnO supports as catalysts for semi-hydrogenation : synthesis and catalytic performance

Johnston, Shaun K.; Cherkasov, Nikolay; Perez-Barrado, Elena; Aho, Atte; Murzin, Dmitry Y.; Ibhadon, Alex O.; Francesconi, M. Grazia

Authors

Shaun K. Johnston

Nikolay Cherkasov

Elena Perez-Barrado

Atte Aho

Dmitry Y. Murzin

Elena Pérez-Barrado

Abstract

The two catalysts Pd₃Sn/TiO₂and Pd3Sn/ZnO were prepared via a one-pot procedure based on the “polyol method” with the addition of a capping agent (polyvinylpyrrolidone) to control the particle size distribution. The same procedure was used to prepare Pd/TiO2 and Pd/ZnO for comparison. All four catalysts showed high activity and selectivity for the selective hydrogenation of 2-methyl-3-butyn-2-ol (MBY) to 2-methyl-3-buten-2-ol (MBE) in the liquid phase under identical conditions. However, Pd₃Sn/TiO₂and Pd₃Sn/ZnO show selectivities to alkene significantly higher than that of the Pd catalysts. Specifically, the selectivity increases from 96.4% to 97.4% on TiO₂support, and 96.2% to 97.6% on ZnO support, at 90% conversion. Transition electron microscopy shows nanoparticles evenly dispersed on the support, with mean particle sizes as low as 4.1 (±0.8) nm when Sn is incorporated into the catalyst. Unsupported Pd3Sn was prepared using the same method and characterised by powder X-Ray diffraction followed by the Rietveld refinement. Pd3Sn was found to be single-phase and isostructural to Pd metal with a face centred cubic unit cell.

Journal Article Type Article
Publication Date Aug 25, 2017
Journal Applied catalysis. A, General
Print ISSN 0926-860X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 544
Pages 40-45
DOI https://doi.org/10.1016/j.apcata.2017.07.005
Keywords Alkyne; Alkene; Bimetallic; Catalysis; Palladium; Selective hydrogenation; Acetylene
Publisher URL http://www.sciencedirect.com/science/article/pii/S0926860X17303058
Copyright Statement ©2018, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Additional Information This is the accepted manuscript of an article published in pplied catalysis. A, General, 2017. The version of record is available at the DOI link in this record.

Files

Article (1.6 Mb)
PDF

Copyright Statement
©2018, Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/



You might also like


Downloadable Citations