Z-contrast imaging of supported Pt and Pd clusters

High-angle annular dark-field or Z-contrast microscopy was used to demonstrate that well dispersed metal supported catalysts consist of nanometer sized clusters. Depending upon the impregnated metal, different cluster sizes were observed. Grouping of Pd clusters could also be confirmed by analytical...

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Bibliographic Details
Published inMicroscopy research and technique Vol. 28; no. 5; p. 427
Main Authors Bradley, S A, Cohn, M J, Pennycook, S J
Format Journal Article
LanguageEnglish
Published United States 01.08.1994
Subjects
Catalysis
Microscopy, Electron, Scanning Transmission - methods
Palladium - analysis
Platinum - analysis
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Summary:High-angle annular dark-field or Z-contrast microscopy was used to demonstrate that well dispersed metal supported catalysts consist of nanometer sized clusters. Depending upon the impregnated metal, different cluster sizes were observed. Grouping of Pd clusters could also be confirmed by analytical electron microscopy.
ISSN:1059-910X
DOI:10.1002/jemt.1070280509