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Novel synthesis of thick wall coatings of titania supported Bi poisoned Pd catalysts and application in selective hydrogenation of acetylene alcohols in capillary microreactors

Cherkasov, Nikolay; Ibhadon, Alex O.; Rebrov, Evgeny V.

Authors

Nikolay Cherkasov

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Dr Alex Ibhadon A.O.Ibhadon@hull.ac.uk
Reader in Catalysis and Reactor Engineering

Evgeny V. Rebrov



Abstract

Catalysis in microreactors allows reactions to be performed in a very small volume, reducing the environmental problems and greatly intensifying the processes through easy pressure control and the elimination of heat- and mass-transfer limitations. In this study, we report a novel method for the controlled synthesis of micrometre-thick mesoporous TiO2 catalytic coatings on the walls of long channels (>1 m) of capillary microreactors in a single deposition step. The method uses elevated temperature and introduces a convenient control parameter of the deposition rate (displacement speed controlled by a stepper motor), which allows deposition from concentrated and viscous sols without channel clogging. A capillary microreactor wall-coated with titania supported Bi-poisoned Pd catalyst was obtained using the method and used for the semihydrogenation of 2-methyl-3-butyn-2-ol providing 93 ± 1.5% alkene yield for 100 h without deactivation. Although the coating method was applied only for TiO2 deposition, it is nonetheless suitable for the deposition of volatile sols.

Citation

Cherkasov, N., Ibhadon, A. O., & Rebrov, E. V. (2015). Novel synthesis of thick wall coatings of titania supported Bi poisoned Pd catalysts and application in selective hydrogenation of acetylene alcohols in capillary microreactors. Lab on a chip, 15(8), 1952-1960. https://doi.org/10.1039/c4lc01066c

Journal Article Type Article
Acceptance Date Feb 18, 2015
Online Publication Date Feb 18, 2015
Publication Date Apr 21, 2015
Deposit Date Apr 6, 2016
Publicly Available Date Apr 6, 2016
Journal Lab on a chip
Print ISSN 1473-0197
Electronic ISSN 1473-0189
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 15
Issue 8
Pages 1952-1960
DOI https://doi.org/10.1039/c4lc01066c
Keywords Hydrogenation
Public URL https://hull-repository.worktribe.com/output/435099
Publisher URL http://pubs.rsc.org/en/Content/ArticleLanding/2015/LC/C4LC01066C#!divAbstract

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