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Palladium-bismuth intermetallic and surface-poisoned catalysts for the semi-hydrogenation of 2-methyl-3-butyn-2-ol

Johnston, Shaun K.; Cherkasov, Nikolay; Ibhadon, Alex O.; McCue, Alan J.; Anderson, James A.; Johnston, Shaun K.


Shaun K. Johnston

Nikolay Cherkasov

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Dr Alex Ibhadon
Reader in Catalysis and Reactor Engineering

Alan J. McCue

James A. Anderson

Shaun K. Johnston


The effects of poisoning of Pd catalysts with Bi and annealing in a polyol (ethylene glycol) were studied on the semi-hydrogenation of 2-methyl-3-butyn-2-ol (MBY). An increase in the Pd:Bi ratio from 7 to 1 in the Bi-poisoned catalysts decreased the hydrogenation activity due to blocking of active sites, but increased maximum alkene yield from 91.5% for the Pd catalyst to 94–96% for all Bi-poisoned Pd catalysts, by decreasing the adsorption energy of alkene molecules and suppressing the formation of β-hydride phase. Annealing of the catalysts induced the formation of intermetallic phases and decreased its activity due to sintering of the catalytic particles and low activity of intermetallic compounds. Langmuir–Hinshelwood kinetic modelling of the experimental data showed that poisoning of Pd with Bi changed the relative adsorption constants of organic species suggesting ligand effects at high Bi content.


Cherkasov, N., Ibhadon, A. O., McCue, A. J., Anderson, J. A., & Johnston, S. K. (2015). Palladium-bismuth intermetallic and surface-poisoned catalysts for the semi-hydrogenation of 2-methyl-3-butyn-2-ol. Applied catalysis. A, General, 497, 22-30.

Journal Article Type Article
Acceptance Date Feb 20, 2015
Online Publication Date Feb 27, 2015
Publication Date 2015-05
Deposit Date Apr 6, 2016
Publicly Available Date Apr 6, 2016
Journal Applied catalysis a : general
Print ISSN 0926-860X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 497
Pages 22-30
Keywords Heterogeneous catalysis; Alkynol; 2-methyl-3-butyn-2-ol; Hydrogenation; Semi-hydrogenation; Palladium; Bismuth
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Additional Information This is an authors accepted manuscript of an article published in Applied catalysis a : general, 2015, v.497.


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