English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

SEELFS and HREM investigations of Pd clusters supported by MgO(100)

MPS-Authors
/persons/resource/persons263383

Bartuschat,  Sigurd
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22190

Urban,  Joachim
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Bartuschat, S., & Urban, J. (1997). SEELFS and HREM investigations of Pd clusters supported by MgO(100). Philosophical Magazine A: Physics of Condensed Matter, Structure, Defects and Mechanical Properties, 76(4), 783-792. doi:10.1080/01418619708214210.


Cite as: https://hdl.handle.net/21.11116/0000-0008-DECB-A
Abstract
Pd clusters in the size range between 1.5 and 30nm grown on MgO(100) surfaces where investigated by surface extended electron-energy-loss finestructure measurements in order to study the influence of the particle size on
the Debye-Waller factor, the melting temperature and the bond length. For the last. high-resolution electron microscopy was also performed. A decrease with decreasing particle size was observed for the melting temperature. For epitaxially grown particles, a dilatation of the bond length was observed which decreases
with increasing particle diameter. In the case of non-epitaxial growth two different structures were observed, namely icosahedral and cubotahedral particles. For icosahedral particles a structure-dependent dilatation was
observed which was not dependent on the size. The cuboctahedral particles do not show any difference in the bond length compared with the bulk, that is neither dilatation nor contraction. It is concluded that free Pd clusters do not show any size effect on the lattice constant.