Type

Journal Article

Authors

Gerard P McGlacken
Justin D. Holmes
Colm O'Dwyer
Michael Schmidt
Gillian Collins

Subjects

Chemistry

Topics
cross reactions shape oxygen catalysis heterogeneous catalysis catalytic reactivity shape sensitivities enhanced reactivity palladium octahedral morphology coupling reactions cross coupling reactions molecular surface facet nanocrystals leaching suzuki miyaura coupling sensitivity surface catalytic performance

The origin of shape sensitivity in palladium-catalyzed Suzuki-Miyaura cross coupling reactions. (2014)

Abstract The shape sensitivity of Pd catalysts in Suzuki-Miyaura coupling reactions is studied using nanocrystals enclosed by well-defined surface facets. The catalytic performance of Pd nanocrystals with cubic, cuboctahedral and octahedral morphologies are compared. Superior catalytic reactivity is observed for Pd NCs with {100} surface facets compared to {111} facets. The origin of the enhanced reactivity associated with a cubic morphology is related to the leaching susceptibility of the nanocrystals. Molecular oxygen plays a key role in facilitating the leaching of Pd atoms from the surface of the nanocrystals. The interaction of O2 with Pd is itself facet-dependent, which in turn gives rise to more efficient leaching from {100} facets, compared to {111} facets under the reaction conditions.
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Ireland -> University College Cork -> Tyndall National Institute
Ireland -> University College Cork -> Micro-Nanoelectronics Centre
Ireland -> University College Cork -> Tyndall National Institute - Journal Articles
Ireland -> University College Cork -> Chemistry
Ireland -> University College Cork -> Materials Chemistry and Analysis Group - Journal articles
Ireland -> University College Cork -> Chemistry - Journal Articles
Ireland -> University College Cork -> Research Institutes and Centres

Full list of authors on original publication

Gerard P McGlacken, Justin D. Holmes, Colm O'Dwyer, Michael Schmidt, Gillian Collins

Experts in our system

1
Gerard P McGlacken
University College Cork
Total Publications: 36
 
2
Justin D. Holmes
University College Cork
Total Publications: 182
 
3
Colm O'Dwyer
University College Cork
Total Publications: 121
 
4
Michael Schmidt
University College Cork
Total Publications: 29
 
5
Gillian Collins
University College Cork
Total Publications: 22