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  Palladium Nanocrystals on Al2O3: Structure and Adhesion Energy

Hansen, K. H., Worren, T., Stempel, S., Lægsgaard, E., Bäumer, M., Freund, H.-J., et al. (1999). Palladium Nanocrystals on Al2O3: Structure and Adhesion Energy. Physical Review Letters, 83(20), 4120-4123. doi:10.1103/PhysRevLett.83.4120.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-052A-3 Version Permalink: https://hdl.handle.net/21.11116/0000-0009-2666-A
Genre: Journal Article

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PhysRevLett.83.4120.pdf (Publisher version), 944KB
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1999
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 Creators:
Hansen, K. Højrup1, Author
Worren, T.1, Author
Stempel, Sascha2, Author           
Lægsgaard, E.1, Author
Bäumer, Marcus2, Author           
Freund, Hans-Joachim2, Author           
Besenbacher, F.1, Author
Stensgaard, I.1, Author
Affiliations:
1Institute of Physics and Astronomy, and Center for Atomic-scale Materials Physics (CAMP), University of Aarhus, Denmark, ou_persistent22              
2Chemical Physics, Fritz Haber Institute, Max Planck Society, ou_24022              

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 Abstract: We have investigated the structure and morphology of nanosized palladium clusters supported by a thin Al2O3 film on NiAl(110) using scanning tunneling microscopy. Well-ordered clusters with a diameter above ≈40Å were imaged with atomic resolution, allowing a crystallographic identification of the cluster facets. A new method to obtain quantitative information on the work of adhesion (adhesion energy) of metal clusters deposited on oxides is introduced. For Pd on Al2O3 we obtain a value of Wadh=2.8±0.2J/m2. This result is at variance with values recently derived on the basis of ab initio density-functional theory.

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Language(s): eng - English
 Dates: 1999-06-091999-11-15
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1103/PhysRevLett.83.4120
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: 4 Volume / Issue: 83 (20) Sequence Number: - Start / End Page: 4120 - 4123 Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1