DOI: 10.1126/science.1215864. Isolated Metal Atom Geometries as a Strategy for Selective Heterogeneous Hydrogenations

Isolated Metal Atom Geometries as a Strategy for Selective Heterogeneous Hydrogenations

10.1126/science.1215864

Crossref journal-article

American Association for the Advancement of Science (AAAS)

Science (221)

Abstract

Tuning Hydrogen Adsorption Heterogeneous metal catalysts for hydrogenating unsaturated organic compounds need to bind molecular hydrogen strongly enough that it dissociates and forms adsorbed hydrogen atoms, but must not bind these atoms too strongly, or the transfer to the organic molecule will be impeded. Kyriakou et al. (p. 1209 ) examined surface alloy catalysts created when palladium (Pd) atoms are adsorbed on a copper (Cu) surface using scanning tunneling microscopy and desorption techniques under ultrahigh vacuum conditions. The Pd atoms could bind hydrogen dissociatively—which, under these conditions, the Cu surfaces could not—allowing the Cu surface to take up adsorbed hydrogen atoms. These weakly bound hydrogen atoms were able to selectively hydrogenate styrene and acetylene.

Bibliography

Kyriakou, G., Boucher, M. B., Jewell, A. D., Lewis, E. A., Lawton, T. J., Baber, A. E., Tierney, H. L., Flytzani-Stephanopoulos, M., & Sykes, E. C. H. (2012). Isolated Metal Atom Geometries as a Strategy for Selective Heterogeneous Hydrogenations. Science, 335(6073), 1209â1212.

Authors 9

Georgios Kyriakou (first)
Matthew B. Boucher (additional)
April D. Jewell (additional)
Emily A. Lewis (additional)
Timothy J. Lawton (additional)
Ashleigh E. Baber (additional)
Heather L. Tierney (additional)
Maria Flytzani-Stephanopoulos (additional)
E. Charles H. Sykes (additional)

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Dates

Type	When
Created	13 years, 5 months ago (March 8, 2012, 2:16 p.m.)
Deposited	1 year, 7 months ago (Jan. 10, 2024, 9:43 a.m.)
Indexed	2 days, 10 hours ago (Aug. 23, 2025, 1:07 a.m.)
Issued	13 years, 5 months ago (March 9, 2012)
Published	13 years, 5 months ago (March 9, 2012)
Published Print	13 years, 5 months ago (March 9, 2012)

Funders 0

None

BibTeX

@article{Kyriakou_2012, title={Isolated Metal Atom Geometries as a Strategy for Selective Heterogeneous Hydrogenations}, volume={335}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.1215864}, DOI={10.1126/science.1215864}, number={6073}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Kyriakou, Georgios and Boucher, Matthew B. and Jewell, April D. and Lewis, Emily A. and Lawton, Timothy J. and Baber, Ashleigh E. and Tierney, Heather L. and Flytzani-Stephanopoulos, Maria and Sykes, E. Charles H.}, year={2012}, month=mar, pages={1209–1212} }

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