| The composition and structure of Pd-Au surfaces. | |
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MedLine Citation:
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PMID: 16853387 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Pd, Au, and Pd-Au mixtures were deposited via physical vapor deposition onto a Mo(110) substrate, and the surface concentration and morphology of the Pd-Au mixtures were determined by low-energy ion scattering spectroscopy (LEISS), infrared absorption spectroscopy (IRAS), temperature-programmed desorption (TPD), and X-ray photoelectron spectroscopy (XPS). Pd-Au mixtures form a stable alloy between 700 and 1000 K with substantial enrichment in Au compared to the bulk composition. Annealing a 1:1 Pd-Au mixture at 800 K leads to the formation of a surface alloy with a composition Au(0.8)Pd(0.2) where Pd is predominantly surrounded by Au. The surface concentration of this isolated Pd site can be systematically controlled by altering the bulk Pd-Au alloy concentration. |
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Authors:
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C-W Yi; K Luo; T Wei; D W Goodman |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The journal of physical chemistry. B Volume: 109 ISSN: 1520-6106 ISO Abbreviation: J Phys Chem B Publication Date: 2005 Oct |
Date Detail:
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Created Date: 2006-07-20 Completed Date: 2007-06-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101157530 Medline TA: J Phys Chem B Country: United States |
Other Details:
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Languages: eng Pagination: 18535-40 Citation Subset: - |
Affiliation:
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Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, USA. |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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