Type

Journal Article

Authors

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

Subjects

Chemistry

Topics
suzuki miyaura coupling leaching shape control nanoparticles high index palladium nanoparticles leaching mechanism palladium nanocrystals suzuki coupling shape control enhanced catalytic activity

Enhanced catalytic activity of high index faceted palladium nanoparticles in Suzuki-Miyaura coupling due to efficient leaching mechanism (2014)

Abstract The structure-property relationship of palladium (Pd) catalysts in Suzuki-Miyaura cross-coupling reactions was investigated using Pd nanocrystals of uniform size and shape. Superior catalytic reactivity was observed for Pd nanoparticles with high-index {730} surface facets compared to low-index {100} facets. Although the nanocrystal morphologies were maintained during the reaction, the presence of Pd clusters, identified by high-resolution transmission electron microscopy (TEM), indicates a leaching mechanism. The nature of the surface facets on the nanoparticles was observed to influence the rate of Pd leaching during the Suzuki coupling reaction. The enhanced reactivity observed for the high-index facet catalysts stems from the greater number of leachable atoms of low abstraction energy available on high-index planes.
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Full list of authors on original publication

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

Experts in our system

1
Justin D. Holmes
University College Cork
Total Publications: 182
 
2
Gerard P McGlacken
University College Cork
Total Publications: 36
 
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